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Gelosaite

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SMM857605

Gelosaite

Type Locality
Rare Mineral

Description Tabs

Description
Locality: 
Punta de Su Seinargiu, Sarroch, Cagliari Province, Sardinia, Italy
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 1.5 × 1.5 cm
Description

Nice, very pale-blue, fainly/blue, groups of flattened crystals of this extremely rare Bi-Mo mineral are scattered on the quartz matrix. The specimen come from the type locality where for this species the blue color (or pale-blue) is quite rare. Unusually rich! 

There are many molybdenite crystals groups.

Boxed with Label
Mineral Data
What's on the rock

Gelosaite

Formula: 
BiMo6+(2-5x)Mo5+6xO7(OH)·H2O (0 ≤ x ≤ 0.4)
Strunz: 
07.??
Crystal System: 
Monoclinic
Colour: 
yellow, yellowish green, pale blue
Type Locality: 
Su Senargiu Sarroch, Cagliari, Sardinia, Italy

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