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Hungchaoite

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SKY998765

Hungchaoite

Rare Mineral

Description Tabs

Description
Locality: 
Black Hills, Lawrence County, South Dakota, United States of America
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 2 × 1 cm
Description

White rounded crystal aggregates of the very rare Mg borate mineral hungchaoite from one of the only three known localities worldwide.

Ex Vandenbroucke Museum collection from Waregem, Belgium.

Mineral Data
What's on the rock

Hungchaoite

Formula: 
Mg(B4O7)·9H2O
Strunz: 
6.DA.20
Hardness: 
2.5
Colour: 
colorless
Type Locality: 
Da Qaidam salt lake (Dachaidan salt lake), Da Qaidam Co. (Dachaidan Co.), Haixi Autonomous Prefecture, Qinghai Province, China

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