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Dioptase

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CSW843993

Dioptase

RW Barstow label ex Harry J Foy Collection
Classic Locality

Description Tabs

Description
Locality: 
Mindouli, Pool Region, Congo (Republic)
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.7 × 6 × 4.1 cm
Weight: 
181.00gr
Description

An old time specimen from this classic locality consisting of matrix almost totally covered in lustrous, large green dioptase crystals. The specimen was purchased by the late Harry J Foy directly from Dick Barstow in 1977 and comes with an original Barstow green label. A super specimen with great provenance too.

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...

Seller Information

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Seller's terms and conditions

Thank you for viewing my auctions. It goes without saying that maintaining high standards in both specimen quality and customer service are extremely important to me. If for any reason you are not happy with any aspect of your transaction then please let me know as soon as possible, ideally within 1 week of receiving your specimen. I will happily do all in my power to resolve the situation to your satisfaction. If your specimen is damaged upon delivery simply send me some photos to verify this and I'll provide you with a full refund or a replacement specimen, whichever you prefer.