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Dioptase

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BCK215871

Dioptase

Rare Dioptase locality!

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Description
Locality: 
Algomah Mine, Houghton County, Michigan, United States of America
Size Range: 
Thumbnail (1-3cm)
Size: 
2.2 × 2 × 1 cm
Description

You are bidding on a small specimen loaded with small dioptase crystals in rich clusters on quartz matrix. A very good example from this rare dioptase locality!

Mineral Data
What's on the rock

Dioptase

Formula: 
CuSiO3·H2O
Strunz: 
9.CJ.30
Crystal System: 
Trigonal
Hardness: 
5.0
Streak: 
Green
Type Locality: 
Altyn-Tyube dioptase deposit (Altyn-Tube), Altyn-Tyube area, Kirghiz Steppes (Asiatic Steppes), Karagandy Province (Qaragandy Oblysy; Karaganda Oblast'), Kazakhstan...

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