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Capgaronnite & Perroudite

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SKY596766

Capgaronnite & Perroudite

Type Locality

Description Tabs

Description
Locality: 
Cap Garonne Mine, Le Pradet, Var, Provence-Alpes-Cote d'Azur, France
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.4 × 1.1 × 0.9 cm
Description

Black crystals of capgaronnite associated to outstanding orange acicular perroudite crystals from the type locality from both mineral species.

Capgaronnite is one of the very few minerals with Bromine (Br) and Iodine (I) in its composition. In fact, from more than 5000 known minerals, only 17 have Bromine, only 26 have Iodine and only 6 have Bromine and Iodine at the same time in its composition, so this is a real rarity!

Mineral Data
What's on the rock

Capgaronnite

Formula: 
HgAgS(Cl,Br,I)
Strunz: 
2.FC.20a
Crystal System: 
Orthorhombic
Hardness: 
0.0
Type Locality: 
Cap Garonne Mine, Le Pradet, Var, Provence-Alpes-Côte d'Azur, France...

Perroudite

Formula: 
Hg5Ag4S5(I,Br)2Cl2
Strunz: 
2.FC.20c
Hardness: 
2.0
Type Locality: 
Cap Garonne Mine, Le Pradet, Var, Provence-Alpes-Côte d'Azur, France...

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