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Cafarsite - Mt. Cervandone area, Devero Alp, Baceno, Devero Valley, Antigorio Valley, Ossola Valley, Verbano-Cusio-Ossola Province, Piedmont, Italy
(#:MINS7909)
This Piedmont region of Italy, right at the Swiss border, has produced fine alpine minerals for hundreds of years. This matrix Cafarsite specimen is no exception. This species composed of calcium, titanium, iron, and manganese, arsenate, features a very sharp cubic-octahedral crystal 7 mm wide aesthetically perched on matrix. Collected in the late 1990s.A classic Alpine specimen.Ex. Coll. Volpi - Italy.
Formula :
Na(Ca,Mn
2+
)
7
(Ti
4+
,Fe
3+
,Fe
2+
)
6
[As
3+
O
3
]
12
* 2 H
2
O
System:
cubic
Hardness:
5½-6
Rarity:
rare
Strunz id:IV/J.5-20 - OXIDES and HYDROXIDES
Name origin:
For the elements in composition.
Specimen weight:5 gr.
Crystal size:7 mm x 6 mm
Overall size: 39mm x 15 mm x 18 mm
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