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Dioptase with Mottramite -Tsumeb Mine, Otjikoto Region, Namibia
(#:MINS8979)
Cluster of bright xls of Dioptase up to 5 mm with adamantine luster on matrix with green Mottramite in association. Very nice combo from Tsumeb mine.
Formula :
Fe
3+
[OH/Te
2
4+
O
5
]
System:
tetragonal
Hardness:
4½
Rarity:
rare
Strunz id:IV/K.12-30 - OXIDES and HYDROXIDES
Name origin:
For John William Mackay (1831-1902), Irish-American financier and mine operator on the Comstock lode, Nevada, who endowed the School of Mines of the University of Nevada (also honored by naming the school the Mackay School of Mines).
Specimen weight:106 gr.
Crystal size:Up to 5 mm
Overall size: 95mm x 80 mm x 27 mm
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