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Qilianshanite & Nahcolite

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SMM743855

Qilianshanite & Nahcolite

Rare Mineral

Description Tabs

Description
Locality: 
Alkali Lake, Lake County, Oregon, United States of America
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.2 × 1.5 × 1.2 cm
Description

White qilianshanite crystals on pale-greyish crystalline nahcolite. Qilianshanite is a very rare borate foun only in the type locality in China and here at Alkali Lake.

Boxed with Label
Mineral Data
What's on the rock

Qilianshanite

Formula: 
NaHCO3·H3BO3·2H2O
Strunz: 
6.H0.55
Crystal System: 
Monoclinic
Hardness: 
2.0
Type Locality: 
Juhongtu B deposit, Yashatu, Delhi Co. (Delingha Co.), Haixi Autonomous Prefecture, Qinghai Province, China

Nahcolite

Formula: 
NaHCO3
Strunz: 
5.AA.15
Crystal System: 
Monoclinic
Hardness: 
2.5
Streak: 
White
Type Locality: 
Mt Vesuvius, Somma-Vesuvius Complex, Naples Province, Campania, Italy

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