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Miersite & Cuprite

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PAU614262

Miersite & Cuprite

Rare Mineral

Description Tabs

Description
Locality: 
Rubtsovskoe Deposit, Rudnyi Altai, Altai Krai, Russian Federation
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 4.2 × 3.2 cm
Largest Crystal: 
1.30cm
Description

Aggregate of octahedral cuprite crystals. The crystals, with very well defined faces and edges, are coated in some areas by lemon yellow crystals, isolated or clustered, of miersite, a rare iodide of silver and copper.

Mineral Data
What's on the rock

Miersite

Formula: 
(Ag,Cu)I
Strunz: 
3.AA.05
Hardness: 
2.5 - 3.0
Colour: 
Yellow
Streak: 
Yellow
Type Locality: 
Broken Hill, Yancowinna Co., New South Wales, Australia

Cuprite

Formula: 
Cu2O
Strunz: 
4.AA.10
Crystal System: 
Isometric
Hardness: 
3.5 - 4.0