Kunzite (var. of spodumene) - Dara-e-Pech pegmatite field - Dara-e-Pech Distr. - Kunar - Afghanistan
(#GM25048)
A floater of pale pink col,ored crystal of kuinzite, a variety of spodumene.
It's typical from this Afghan locality.
Specimen weight:66 gr.
Crystal size:--
 Overall size:66mm x 33 mm x 23 mm
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Mordenite - Montresta - Oristano prov. - Sardinia - Italy
(#GM25047)
Several cottony tufts of white mordenite cover almost entirely, but in a chaotic manner, the surface of this Sardinian specimen.
From a find in the last century.
Specimen weight:700 gr.
Crystal size:mm. 8
Overall size:135mm x 97 mm x 65 mm
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Adamite - Ojuela mine - Mapimì - Mexico
(#GM25046)
Several adamite aggregates are visible all around the sample.
Under long-wave UV light they take on a shocking lemon yellow color: in reality the yellow is much more intense ...
Specimen weight:90 gr.
Crystal size:mm. 5
Overall size:54mm x 42 mm x 44 mm
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Fenster quartz - Porretta Terme - Alto Reno Terme - Bolgna Prov, - - Emilia-Romagna - Italy
(#GM25044)
Typical fenster quartz from this famopus italian locality.
It's composed by some crystals that are embraced together.
Specimen weight:55 gr.
Crystal size:--
Overall size:56mm x 33 mm x 33 mm
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Malachite - L'Etoile du Congo mine - Lumumbashi - Haut Katanga - Zaire
(#GM25041)
Beautiful and shiny dark green zoned malachite plate with lighter stripes.
Only the front is polished, the other faces are natural.
On the back there is ...
Specimen weight:220 gr.
Crystal size:--
Overall size:110mm x 37 mm x 25 mm
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Baryte - La Union - Murcia - Spain
(#GM25039)
Baryte center of a geode with a whitish/pale grenish color and crystals arranged all around the piece.
Very aesthetic!
Specimen weight:1340 gr.
Crystal size:mm.28
Overall size:127mm x 75 mm x 110 mm
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Colemanite - Bigadiç - Balikesir Prov. - Marmara Region - Turkey
(#GM25038)
The surface of this specimen is covered with whitish, translucent crystals of colemanite, an uncommon borate.
Traces of this mineral are also in the underlying part of the specimen.
Specimen weight:700 gr.
Crystal size:mm. 27
Overall size:100mm x 88 mm x 57 mm
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Vanadinite - Mibladen mine - Midelt - Khenifra Prov. - Meknès-Tafilalet Region - Morocco
(#GM25037)
A beautiful druse covered with brilliant and perfect crystals of fiery red vanadinite, which are mostly arranged on one side.
The back of the specimen is light brown colored and shows the natural process of ...
Specimen weight:230 gr.
Crystal size:mm. 10
Overall size:80mm x 40 mm x 65 mm
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Halite - Swakopmind Constituency - Erongo region - Namibia
(#GM25036)
This druse composed of numerous very large, pale pink colored halite crystals.
They are many parallelepipeds placed side by side not orthogonally, whose composition resembles a 'dovetail' crystallization.
Very aesthetic !!
Specimen weight:600 gr.
Crystal size:mm. 56
Overall size:135mm x 135 mm x 75 mm
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Spessartine garnet - Wushan Spessartine mine - Tongbei - Yunxiao Co. - Zhangzhou pref. - Fujian prov. - China
(#GM25032)
The surface of this druse is densely covered with large and small spessartine garnets, that have a very dark brown color.
Some are so dark that they look like ...
Specimen weight:550 gr.
Crystal size:mm. 8
Overall size:100mm x 100 mm x 52 mm
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Posnjakite - Richtarova - Staré Hory - Slovakia
(#GM25027)
A partly mammillary crust of a light and dark blue color partially covers the surface of this specimen.
It is posnjakite, an uncommon copper sulfate and ...
Specimen weight:85 gr.
Crystal size:--
Overall size:58mm x 47 mm x 37 mm
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Humite - San Vito quarry - Somma-Vesuvius Complex - Naples Province - Campania – Italy
(#GM25026)
Signifint sample where there are some dark amber in color and semi-transparent crystals of humite.
Vesuvius is now declared a Park and it is impossible ...
Specimen weight:200 gr.
Crystal size:mm 1,5
Overall size:60mm x 52 mm x 45 mm
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Amazonite (var. of microcline) – Tingir Distr. - Gilgit-Baltistan – Pakistan
(#GM25023)
Large but not well formed green crystal of amazonite, a variety of microcline.
On the crystal there are dark and massive traces of smoky quartz and schorl.
Specimen weight:145 gr.
Crystal size:
Overall size:55mm x 37 mm x 40 mm
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Millerite - Ca' dei Ladri (Silla) - Gaggio Montano - Bologna prov. - Emilia-Romagna - Italy
(#GM25022)
20 mm long millerite needle is clearly visible on the surface of this sample.
It emerges from a crystal of hyaline quartz ...
Specimen weight:105 gr.
Crystal size:mm. 20
Overall size:62mm x 30 mm x 50 mm
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Corkite on goethite - Serra da Mina mine - Cercal - Santiago do Cacém - Setúbal distr. - Portugal
(#GM25021)
Several yellow-brown minicrystals of corkite are spread over the matrix of black goethite.
The pictures are overligthened to show the details.
Ex Bruno Cerato collection with original label.
Specimen weight:44 gr.
Crystal size:mm. 1
Overall size:65mm x 40 mm x 32 mm
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Rhodochrosite and goethite in fossil shell - Kamysh-Burun Trough - Kerchenskoe deposit - Kerchenskyi (Fe) ore basin - Kerch Peninsula - Crimea - Russia
(#GM25019)
This specimen consists of a fossil shell that has partially transformed into rhodochrosite through pseudomorphosis.
There are large dark gray areas of goethite.
Specimen weight:76 gr.
Crystal size:--
Overall size:48mm x 42 mm x 47 mm
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Vivianite in fossil shell - Kamysh-Burun Trough - Kerchenskoe deposit - Kerchenskyi (Fe) ore basin - Kerch Peninsula - Crimea - Russia
(#GM25016)
In an aggregate of small fossil shells one of them shows an opening.
You can see the interior, which is filled with bundles of vivianite crystals.
It is glued to the plastic base.
Specimen weight:37 gr.
Crystal size:mm. 8
Overall size:21mm x 31 mm x 38 mm
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Titanite - Tormiq valley - Haramosh Mts. - Skardu Distr. - Baltistan - Gilgit-Baltistan - Pakistan
(#GM25013)
Several transparent, brilliant and brown coloured crystals of titanite are spread all over the white surface of this specimen for a strong contrast.
Specimen weight:105 gr.
Crystal size:mm. 9
Overall size:78mm x 57 mm x 30 mm
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Pargasite - Luc Yen - Yen Bai - Vietnam
(#GM25008)
Some green pargasite crystals are clearly visible on the white matrix of saccharoid marble.
On the back you can see a large brown crystal of hydroxylclinohumite, of which a tip can also be seen in front.
The sample was etched ...
Specimen weight:260 gr.
Crystal size:mm. 10
Overall size:100mm x 95 mm x 22 mm
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Analcime - Siusi Alp - Sciliar -Castelrotto - Bolzano prov. - Trentino-Alto Adige - Italy
(#GM25006)
A large white crystal of analcime is prominent on the matrix.
A classic specimen from this well-known Alpine location that has given so many specimens to collections around the world.
Specimen weight:80 gr.
Crystal size:mm. 40 x 31
Overall size:60mm x 50 mm x 30 mm
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Fluorite - Xianghualing mine - Chenzou - Hunan prov. - China
(#GM25003)
A large, semi-transparent, octahedral crystal of intense green color is flanked by another smaller one.
The main crystal is 75 mm. of size
They are placed on a white quartzite matrix, for a nice chromatic contrast.
Specimen weight:400 gr.
Crystal size:mm. 75
Overall size:88mm x 80 mm x 58 mm
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Spessartine and smoky quartz - Wushan Spessartine mine - Tongbei - Fujian prov. - China
(#GM24116)
Several small, bright, orange-red spessartine crystals are visible at the tip of the specimen.
A black, bright smoky quartz crystal is present near them.
A few spessartine crystals have grown on them.
Specimen weight:55 gr.
Crystal size:mm. 3
Overall size:41mm x 32 mm x 38 mm
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Demantoid grenat (var. of andradite) - Belqeys Mountain - Takab County - West Azerbaijan Prov. - Iran
(#GM24112)
Remarkable druse of well defined demantoid crystals that are clearly visible outside the matrix.
The not completely finished back was of contact.
This kind of demantoid was analyzed ...
Specimen weight:120 gr.
Crystal size:mm. 25
Overall size:58mm x 35 mm x 45 mm
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Ferrierite - Albero Bassi - Santorso - Vicenza prov. - Veneto - Italy
(#GM24111)
Typical ferrierite specimen with spheroidal and felted crystals.
It comes from a classic locality in Veneto for this species.
Incidentally, it would be the 'Type Locality' for heulandite-K
Specimen weight:160 gr.
Crystal size:mm. 5
Overall size:57mm x 63 mm x 47 mm
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Phillipsite - Calvarina Mt. - Roncà - Verona prov. - Veneto - Italy
(#GM24108)
Nice specimen with several pale orange spheres of phillipsite that are spread all over the surface.
Some of them are broken and show a small red heart for a nice contrast of color.
Specimen weight:240 gr.
Crystal size:mm. 2
Overall size:105mm x 85 mm x 38 mm
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Epidote - Tormiq valley - Haramosh Mts. - Skardu Distr. - Baltistan - Gilgit-Baltistan - Pakistan
(#GM24107)
A jemmy floater of epidote !
It's an aggregate of transparent crystals of epidote, without matrix.
The crystals are up to 37 mm long, have a beautiful dark green color with yellow reflections and ...
Specimen weight:10 gr.
Crystal size:mm. 37
Overall size:52mm x 19 mm x 7 mm
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Anatase - Miage Glacier - Aosta Valley - Italy
(#GM24105)
A handful of black, shiny and with metallic reflections anatase crystals, are scattered across the light surface of the piece.
There are white, partially crystallized areas of alvite.
Classic ...
Specimen weight:160 gr.
Crystal size:mm. 3
Overall size:71mm x 45 mm x 31 mm
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Galena, sphalerite and quartz - Sovietskii mines - Dal'negorsk -Primorskiy Kray - Far-Eastern Region - Russia
(#GM24103)
A complex aggregate of grey crystals of galena and dark crystals of sphalerite, that are intergrowth together. Some colourless crystals of quarts are visbile at its bottom.
Specimen weight:101 gr.
Crystal size:mm. 25
Overall size:38mm x 35 mm x 53 mm
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Baryte - Mibladen mining distr. - Midelt Prov. - Drâa-Tafilalet Region - Morocco
(#GM24100)
Excellent druse completely covered by lamellar barite crystals.
The color is rather dark orange, with some black dots here and there, probably made up by goethite.
Very aesthetic !
Specimen weight:535 gr.
Crystal size:mm. 20
Overall size:130mm x 80 mm x 50 mm
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Fluorite, calcite and pyrite - Sant Cugat del Vallès - El Papiol - Baix Llobregat - Barcelona - Catalonia - Spain
(#GM24097)
Numerous small fluorite crystals are seeded across the surface of this sample.
They have a beautiful bright green color and are semi-transparent.
Some squat, translucent ...
Specimen weight:750 gr.
Crystal size:mm. 4
Overall size:110mm x 100 mm x 58 mm
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Analcime and epidote - Imilchil - Er Rachidia Prov. - Drâa-Tafilalet Region - Morocco
(#GM24089)
On a very dark green carpet of crystals of epidote two big withish spheres of analcime are visible, with another minor.
There is a big contrast between the white analcimes ...
Specimen weight:420 gr.
Crystal size:mm. 12
Overall size:92mm x 70 mm x 63 mm
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Bastnäsite-(Ce) - Zagi Mountain - Hameed Abad Kafoor Dheri - Peshawar Distr. - Khyber Pakhtunkhwa Prov. - Pakistan
(#GM24088)
A floater of bastnäsite-(Ce) from a classic locality from Pakistan.
It has the typical brown color, with orange-yellow reflections.
It's brilliant and well defined ...
Specimen weight:7 gr.
Crystal size:--
Overall size:16mm x 12 mm x 12 mm
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Epidote and calcite - Tormiq Valley - Pakistan
(#GM24086)
A big epidote crystal (28 mm.) is clearly visible on the surface of this cluster.
It is surrounded by numerous other smaller epidotes and white areas with calcite crystals ...
Specimen weight:760 gr.
Crystal size:mm. 28
Overall size:100mm x 90 mm x 70 mm
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Quartz - Cavnic mine - Cavnic - Maramures Co. - Romania
(#GM24085)
A large crystal of very bright quartz is flanked by a smaller one.
On one side other mini-quartzes are grown and are partly covered by yellowish calcites.
The tip of the main quartz is perfect.
Very aesthetic specimen !
Specimen weight:1400 gr.
Crystal size:--
Overall size:105mm x 90 mm x 135 mm
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Multicolored chalcedony - Monterufoli - Pomarance - Pisa prov. - Tuscany - Italy
(#GM24081)
Half of a typical large chalcedony nodule which is hollow inside and variously colored with bluish and ochre shades
Specimen weight:995 gr.
Crystal size:
Overall size:147mm x 97 mm x 75 mm
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Thomsonite and mesolite - Deshgaon – Burhanpur – Madhya Pradesh - India
(#GM24079)
Very nice specimen of thomsonite and mesolite from a recent find in India.
Big and dark orange coloured hemispheres of thomsonite are stunning over it.
They are covered by radial, delicate and white colored sprays of mesolite ...
Specimen weight:85 gr.
Crystal size:mm. 7
Overall size:55mm x 36 mm x 36 mm
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Cassiterite and quartz - Viloco mine - Loayza Prov. - La Paz Deptm. - Bolivia
(#GM24076)
Numerous black and brilliant crystals of cassiterite cover the surface of this specimen.
They are mixed with several milky quartzes, for a nice contrast of color.
Specimen weight:240 gr.
Crystal size:mm. 8
Overall size:65mm x 43 mm x 37 mm
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Diopside and grossular/hessonite garnet - Alpe delle Frasse - Lajetto - Condove - Torino prov. - Piedmont - Italy
(#GM24071)
A little Alpine gem from a place famous for the high quality of the samples that were extracted here.
Semi-transparent crystals of greenish diopside are together with brown/reddish garnets ...
Specimen weight:12 gr.
Crystal size:mm. 12
Overall size:25mm x 20 mm x 32 mm
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Ferristrunzite - Mont-des-Groseillers - Blaton - Bernissart - Hainaut - Wallonia - Belgium
(#GM24069)
The surface of this specimen is completely covered with cream-colored needles of ferristrunzite.
Many of them are arranged in a rosette ...
Specimen weight:43 gr.
Crystal size:mm. 2
Overall size:62mm x 47 mm x 21 mm
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Tinaksite - Malyi Murun Massif - Irkutsk Oblast - Siberia - Russia
(#GM24067)
Brown sheaves of long tinaksite crystals are prominently displayed on the surface of this specimen.
Formerly Sandro Maggia's mineralogical collection: no. T-51.
Specimen weight:36 gr.
Crystal size:mm. 13
Overall size:48mm x 34 mm x 15 mm
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Posnjakite - Liubetova - Czech Rep.
(#GM24066)
The surface of this specimen is completely covered with tiny needles of bright blue posnjakite.
Formerly Sandro Maggia's mineralogical collection: no. P-114.
Specimen weight:23 gr.
Crystal size:mm. 2
Overall size:58mm x 35 mm x 15 mm
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Hureaulite, sicklerite, vivianite, rockbridgeite and phosphoferrite - Mangualde - Viseu - Portugal
(#GM24065)
A small encyclopedia of minerals, where however only hureaulite is easily recognizable.
Most of the surface of this specimen is covered with orange/light brown crystals of hureaulite.
To identify the other minerals you need ...
Specimen weight:50 gr.
Crystal size:mm. 4
Overall size:56mm x 43 mm x 22 mm
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Lavendulane - Alice Mary mine - Kundip - Ravensthorpe Shire - Western Australia - Australia
(#GM24062)
Several areas with dark azur crusts of lavendulan are visible on the surface of this sample.
Former mineralogical collection of Sandro Maggia: no. L-65.
Specimen weight:32 gr.
Crystal size:--
Overall size:31mm x 31 mm x 36 mm
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Spinel - Pamir - Tajikistan
(#GM24060)
Some large black spinels are stunning on the surface of this specimen: one is perfectly formed and intact, the others are not.
The original tag lists the provenance as CIS ...
Former mineralogical collection of Sandro Maggia: no. S-70.
Specimen weight:65 gr.
Crystal size:mm. 22
Overall size:43mm x 35 mm x 30 mm
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Beudantite and scorodite - Gold Hill mine - Gold Hill Mining Distr. - Tooele Count - Utah - United States
(#GM24057)
he surface of the specimen is completely covered with brown/orange crystals of beudantite.
Among them there are crystals of scorodite with ...
Former mineralogical collection of Sandro Maggia: no. B-158
Specimen weight:47 gr.
Crystal size:mm. 2
Overall size:55mm x 42 mm x 32 mm
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Forsterite - Quebec - Canada
(#GM24056)
Some large and well-formed forsterite crystals are stunning over the matrix of this specimen.
The black and incomplete crystals that can be seen are almost ...
Formerly Sandro Maggia's mineralogical collection: no. F-68.
Specimen weight:36 gr.
Crystal size:mm. 13
Overall size:52mm x 30 mm x 24 mm
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Piemontite and zoisite - Campo Valley - Campo Blenio - Camadra Valley Blenio Valley - Blenio - Ticino - Switzerland
(#GM24055)
A lovely miniature dotted with small elongated crystals of piemontite: they are transparent and have a pinkish color with a red head ...
Former mineralogical collection of Sandro Maggia: no. P-124.
Specimen weight:32 gr.
Crystal size:mm. 2
Overall size:36mm x 30 mm x 24 mm
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Pascoite and metarossite - Sunday #2 mine - Carnation mine Group - Slick Rock Mining Distr. - San Miguel County - Colorado - United States
(#GM24054)
A crust of mini granules covers the surface of this specimen.
The orange colored areas are pascoite, the yellow-green ones are metarossite.
Former mineralogical collection of Sandro Maggia: no. P-85.
Specimen weight:62 gr.
Crystal size:mm. 2
Overall size:53mm x 35 mm x 29 mm
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Vanadinite - Mibladen mine - Midelt - Khénifra prov. - Meknès-Tafilalet reg. - Morocco
(#GM24052)
Gorgeous cluster that is covered by very big, brilliant,dark red colored and perfect crystals of vanadinite.
No damages.
From a recent find in the classic locality of Mibladen in Morocco.
Specimen weight:610 gr.
Crystal size:mm. 19
Overall size:110mm x 50 mm x 45 mm
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Vivianite - Cabeça de Cachorro claim - Sao Gabriel de Cahoeira - Amazonas - Brazil
(#GM24050)
From a recent find in Amazonas, a sample of remarkable quality.
Long and shiny crystals of vivianite with a very dark blue-green petrolium color are arranged over the surface of this sample.
The matrix is ...
Specimen weight:195 gr.
Crystal size:mm. 38
Overall size:63mm x 63 mm x 58 mm
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Beryl - Nagar mine – Hunza Valley - Gilgit Distr. - Baltistan - Pakistan
(#GM24047)
A large, semi-transparent crystal of beryl is stunnong on the matrix of this specimen.
The top is perfectly terminated, the bottom has some parallel growth.
Other small crystals are ...
Specimen weight:110 gr.
Crystal size:mm. 41
Overall size:48mm x 32 mm x 53 mm
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Canavesite - Salvere level - Brosso mine - Cálea - Léssolo - Canavese distr. - Torino prov. - Piedmont - Italy
(#GM24045)
The surface of this specimen is almost completely covered by rosettes of snow-white needles of canavesite.
It's an extremely rare borate ...
Specimen weight:295 gr.
Crystal size:mm. 3
Overall size:66mm x 55 mm x 44 mm
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Aragonite – Coli – Piacenza prov. - Emilia-Romagna – Italy
(#GM24040)
A vein that is completely covered by white minicristals of aragonite cross the whole sample.
Typical from this locality of Emilia-Romagna.
Specimen weight:680 gr.
Crystal size:mm. 2
Overall size:125mm x 95 mm x 70 mm
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Amethyst quartz and goethite - Rio Grande do Sul - Brazil
(#GM24022)
A large druse completely covered by quartz crystals with a beautiful amethyst color.
Most crystal tips are darker.
The black traces that can be seen are of goethite and ...
Specimen weight:550 gr.
Crystal size:mm. 10
Overall size:125mm x 110 mm x 43 mm
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Cylindrite - Poopò - Poopò prov. - Oruro - Bolivia
(#GM24016)
Numerous long acicular crystals of cylindrite are arranged all around the sample, some even forming small fans.
It is one of the very few minerals that ...
Specimen weight:205 gr.
Crystal size:mm. 20
Overall size:67mm x 41 mm x 33 mm
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Bournonite - Machacamarca Distr. - Cornelio Saavedra prov. - Potosí Deptm. - Bolivia
(#GM24015)
Aggregate aesthetics of absolute quality.
It is composed of large and small dark gray bournonite crystals, placed side by side on a pinch of matrix ...
Specimen weight:135 gr.
Crystal size:mm. 29
Overall size:54mm x 43 mm x 30 mm
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Pollucite - Skardu Area - Gilgit-Baltistan - Pakistan
(#GM24012)
An aggregate completely made up of pollucite crystals, to a small extent covered by a white patina of carbonates.
The crystals are well formed and visible, colorless and have an almost glassy appearance ...
Specimen weight:70 gr.
Crystal size:mm. 10
Overall size:34mm x 28 mm x 26 mm
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Vanadinite - Mibladen – Ait Oufella Caid – Midelt – Draa-Tafilalet Region - Morocco
(#GM24011)
Four gorgeous thumbnails of vanadinte from a classic locality in Morocco.
The biggest is 32 mm. of width, the smallest 17 mm.
All crystals are shiny and perfect ...
Specimen weight:60 gr.
Crystal size:--
Overall size:1mm x 1 mm x 1 mm
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Euchlorine - Yadovitaya fumarole - Northern Breakthrough of The Great Tolbachik Fissure Eruption - Tolbachik volcano - Kamchatka Oblast' - Far-Eastern Region - Russia
(#GM24006)
The specimen is dressed by a dark green patina of this rare K-Cu sulphate: with a loupe, it's made up of small crystals.
Interesting sample for this species.
Specimen weight:55 gr.
Crystal size:mm. 2
Overall size:47mm x 24 mm x 29 mm
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Staurolite - Semiostrov'e - Keivy Mountains - Lovozersky Distr. - Murmansk Oblast - Russia
(#GM24003)
Some dark brown crystals of staurolite stand out against the light matrix.
Two of them are overlapping in the typical 'cross' formation of this species.
Specimen weight:80 gr.
Crystal size:mm. 27
Overall size:38mm x 34 mm x 17 mm
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Hydroxylherderite - Alto do Chaga claim - Quixaba - Frei Martinho - Paraíba - Brazil
(#GM24002)
A floater made of a pair of hydroxylherderite crystals.
The main one is semi-transparent.
Specimen weight:70 gr.
Crystal size:mm. 31
Overall size:25mm x 18 mm x 31 mm
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Pyrite - Huanzala mine - Huallanca Distr. - Bolognesi Prov. - Ancash - Perù
(#GM23082)
From a new discovery in Peru.
A stunning aggregate of octahedral pyrites, an uncommon kind of crystallization.
The crystals are big, perfect, with well-defined edges, rounded corners and are partly interpenetrated with each other ...
Specimen weight:570 gr.
Crystal size:mm. 35 x 35
Overall size:90mm x 67 mm x 66 mm
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Fluorite – The Hidden Forest Pocket - Diana Maria mine - Frosterley - Weardale - Co. Durham – England – United Kingdom
(#GM23079)
Interesting specimen of green fluorite that becomes blue colored at the U.V. long waves light.
The crystals are partially intergrowth together and cover all the matrix ...
Specimen weight:180 gr.
Crystal size:mm. 21
Overall size:74mm x 53 mm x 33 mm
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Cyanotrichite - Qinglong Sb-Au deposit - Qinglong Co. - Qianxi'nan Autonomous pref. - Guizhou prov. - China
(#GM23077)
Beautiful specimen that is partially covered by evident, fibrous spheres made of blue electric needles of cyanotrichite.
They form a very dense carpet ...
Specimen weight:125 gr.
Crystal size:mm. 4
Overall size:65mm x 37 mm x 38 mm
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Cyanotrichite - Qinglong Sb-Au deposit - Qinglong Co. - Qianxi'nan Autonomous pref. - Guizhou prov. - China
(#GM23076)
Beautiful specimen that is partially covered by evident, fibrous spheres made of blue electric needles of cyanotrichite.
They form a very dense carpet ...
Specimen weight:90 gr.
Crystal size:mm. 4
Overall size:48mm x 40 mm x 36 mm
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Agate (var. of quartz) – Agouim - Amerzgane Cercle – Drâa-Tafilalet Region - Morocco
(#GM23075)
Sample of agate with incredible colors, arranged in a mosaic on the polished surface.
The colors are absolutely natural.
The back is rough.
Very aesthetic!
Specimen weight:170 gr.
Crystal size:--
Overall size:82mm x 65 mm x 25 mm
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Agate (var. of quartz) – Agouim - Amerzgane Cercle – Drâa-Tafilalet Region - Morocco
(#GM23074)
Sample of agate with incredible colors, arranged in concentric circles on the polished surface.
The colors are absolutely natural.
The back is rough.
Very aesthetic!"
Specimen weight:225 gr.
Crystal size:'–
Overall size:84mm x 66 mm x 43 mm
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Sturmanite - N'Chwaning Mines - KMF - Northern Cape Prov. - South Africa
(#GM23066)
Over this sample, several areas are visible: they are completely covered by small shiny sturmanite crystals with a dark yellow-green color.
Sturmanite is an uncommon sulphate ...
Specimen weight:600 gr.
Crystal size:mm. 2
Overall size:72mm x 72 mm x 57 mm
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Grossular/hessonite garnet - Alpe delle Frasse - Lajetto - Condove - Torino prov. - Piedmont - Italy
(#GM23058)
Excellent alpine specimen of grossular/hessonite garnet.
Numerous crystals with a beautiful dark red to orange color cover the surface.
All of them are shiny and semi-transparent ...
Specimen weight:135 gr.
Crystal size:mm. 4
Overall size:64mm x 53 mm x 22 mm
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Cerussite and baryte - Les Dalles mine – Mibladen – Ait Oufella Caid – Midelt – Draa-Tafilalet Region - Morocco
(#GM23055)
Graceful druse completely covered by small and large, almost botryoidal crystals of cerussite.
They have a honey color and are partially transparent too.
Some aggregates ...
Specimen weight:300 gr.
Crystal size:mm. 12
Overall size:82mm x 65 mm x 28 mm
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Cuprian adamite (var. of adamite) and hemimorfite - Ojuela mine - Mapimì - Mun. de Mapimì - Durango -Mexico
(#GM23054)
Excellent cluster almost completely covered by almost colorless crystals of hemimorphite.
Here and there several blue-green crystals of cuprian adamite are in good evidence ...
Specimen weight:160 gr.
Crystal size:mm. 8
Overall size:98mm x 80 mm x 34 mm
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Rapidcreekite - Rapid Creek - Dawson mining Distr. - Yukon - Canada
(#GM23053)
This specimen is partially covered by a white patina of rapidcreekite.
In an area there are some minicurls of this rare sulfate.
Specimen weight:170 gr.
Crystal size:mm. 2
Overall size:75mm x 47 mm x 37 mm
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Pseudocotunnite and challacolloite - La Fossa crater - Vulcano Island - Lipari - Eolie Islands - Messina prov. - Sicily - Italy
(#GM23051)
Two rare volcanic fumarole minerals are present on the surface of this sample.
It is scattered with numerous acicular crystals of pseudocotunnite ...
Specimen weight:100 gr.
Crystal size:mm. 3
Overall size:58mm x 50 mm x 38 mm
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Celestite and sulphur - Floristella mine - Enna prov. - Sicily - Italy
(#GM23050)
Gorgeous cluster of long, colorless, brilliant, almost gem quality big crystal of celestite.
Some dark orange colore crystals of 'talamone'sulphur are seeded among them for a strong contrast of color ...
Specimen weight:390 gr.
Crystal size:mm. 20
Overall size:83mm x 73 mm x 55 mm
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Celestite and sulphur - La Grasta mine - Caltanissetta - Sicily - Italy
(#GM23049)
Gorgeous cluster of big, colorless, brilliant, almost gem quality big crystal of celestite.
They are stunning over a matrix of 'talamone' sulphur.
Some little crystals of yellow sulphur are visible too.
A high quality sicilian specimen !
Specimen weight:230 gr.
Crystal size:mm. 10
Overall size:65mm x 55 mm x 42 mm
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Hyalophane - Zagradski Potok mine - Zagradski Creek - Busovaca - Zenica-Doboj Canton - Federation of Bosnia and Herzegovina
(#GM23028)
Excellent specimen of this microcline variety, which has a large, semitransparent, almost colorless and multi-geminated crystal.
It is a floater, without matrix.
It comes from the famous Bosnian mine, now abandoned and closed, from ...
Specimen weight:130 gr.
Crystal size:--
Overall size:36mm x 47 mm x 37 mm
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Bornite over pyrite - Milpillas mine - Cuitaca - santa Cruz Municipality - Sonora - Mexico
(#GM23027)
A thin dark layer of bornite covers the surface of the pyrites visible on this specimen.
On the main one (18 mm.) there are some small areas where the golden yellow color of the underlying pyrite can be seen.
The matrix is ...
Specimen weight:120 gr.
Crystal size:--
Overall size:57mm x 34 mm x 48 mm
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Proustite - Bouismas Mine - Bouismas - Bou Azer distr. - Tazenakht - Ouarzazate prov. - Souss-Massa-Draâ Region - Morocco
(#GM23025)
Numerous shiny and dark red proustite crystals are scattered practically over the entire internal surface of this specimen.
The whitish residues of quartzite help to highlight a nice color contrast.
Specimen weight:410 gr.
Crystal size:mm. 2
Overall size:73mm x 53 mm x 72 mm
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Calcite, sphalerite and pyrite – Baccu Arrodas mine – Muravera - Sarrabus - South Sardinia Prov. - Sardinia - Italy
(#GM23021)
Historic sample from the former Stoppani collection with original label.
It's an aggregate of parallel, whitish calcite crystals.
The dark areas are covered by microcrystals of pyrite and by larger ones of sphalerite.
Specimen weight:145 gr.
Crystal size:mm. 63
Overall size:45mm x 35 mm x 63 mm
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Baryte and pyrite - Lubin mine - Lubin Co. - Lower Silesian Voivodeship - Poland
(#GM23007)
Druse strewn with lamellar ocher crystals of baryte that are capped with a myriad of small shimmering crystals of pyrite
Specimen weight:425 gr.
Crystal size:mm. 16
Overall size:83mm x 70 mm x 42 mm
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Chalcotrichite (var. of cuprite) - Libiola mine– Sestri Levante - Genoa prov. - Liguria - Italy
(#GM23005)
Some areas of the sample are covered by patinas or small granules of reddish-brown chalcotrichite.
The little contrast with the matrix makes them almost invisible in the pictures.
Specimen weight:115 gr.
Crystal size:mm. 25
Overall size:45mm x 34 mm x 38 mm
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Potosite (var. di franckeite) – San Josè mine – Oruro – Cercado Prov. - Bolivia
(#GM23003)
The surface of this specimen is completely covered with needles and blades of potosite, a variety of franckeite.
Specimen weight:190 gr.
Crystal size:mm. 5
Overall size:65mm x 50 mm x 27 mm
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Chalcocite and calcite - Idaho Springs Distr. - Clear Creek Co - Colorado
(#GM22060)
Some dark grey crystals of chalcocite are stunning over the matrix that is covered by greyish crystals of calcite.
Specimen weight:75 gr.
Crystal size:mm. 8
Overall size:50mm x 27 mm x 10 mm
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Fluorite, calcite and quartz - Camissinone mine - Zogno - Brembana Valley - Bergamo prov. - Lombardy - Italy
(#GM22057)
Three specimens from this famous alpine italian mine:
- a cube of violet fluorite with internal 'ghost' (mm. 30 x 27 x 23)
- orange calcite over quartzes ...
Specimen weight:150 gr.
Crystal size:--
Overall size:30mm x 27 mm x 33 mm
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Graphite - Ollano - Mallare - Savona prov. - Liguria - Italy
(#GM22031)
Massive specimen of this interesting native element.
From a classic italian locality for this specie.
Specimen weight:140 gr.
Crystal size:--
Overall size:100mm x 40 mm x 30 mm
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Kunzite (var. of spodumene) - Dara-e-Pech Pegmatite field - Dara-e-Pech Distr. - Kunar - Afghanistan
(#GM22026)
Excellent big floater of kunzite, without matrix.
It has a nice pink color, is good terminated and is completely transparent.
A high quality specimen !
Specimen weight:72 gr.
Crystal size:--
Overall size:122mm x 37 mm x 5 mm
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Cerussite - Touissit - Touissit-Bou Beker Distr. - Jerada prov. - L'Oriental Region - Morocco
(#GM22020)
The surface of this sample is dressed by numerous and well-formed crystals of cerussite.
They are stunning from the matrix and are clearly visible.
Specimen weight:490 gr.
Crystal size:mm. 9
Overall size:70mm x 58 mm x 37 mm
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Pyrophyllite - Cotton Stone Mountain - Troy - Montgomery Co. - North Carolina - USA
(#GM22018)
Some big rosettes of brown colored crystals of pyrophyllite are in good evidence over the bulky, whitish matrix.
Specimen weight:230 gr.
Crystal size:mm. 10
Overall size:65mm x 52 mm x 40 mm
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Lazurite, pyrite and chondrodite - Sar-e-Sang distr. - Koksha valley - Badakhshan prov. - Afghanistan
(#GM21063)
A big, dark blue colored crystal of lazurite is scattered out the whitish matrix of marble.
Some areas of it have an electric blue color.
Ther are some little, golden colored crystals of pyrite and some others of chondrodite ...
Specimen weight:175 gr.
Crystal size:mm. 25 x 22
Overall size:50mm x 32 mm x 53 mm
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Pectolite - Upper New Street Quarry - Paterson - Passaic Co. - New Jersey - USA
(#GM21054)
A typical and representative example of the pectolite species: whitish radial aggregates fillings within calcite veins in the matrix.
Ex Sandro Maggia collection with the original label.
Specimen weight:155 gr.
Crystal size:mm. 15
Overall size:46mm x 35 mm x 38 mm
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Owner : GMineral (Voghera - Italy) 