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Tunellite

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PDM649637

Tunellite

Type Locality

Description Tabs

Description
Locality: 
Kramer Borate Deposit, Kern County, California, United States of America
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.6 × 3.8 × 2.9 cm
Description

A floater undamaged group of light grey tunellite crystals associated to minor white fibrous ulexite and red realgar. This borate comes from the museum of Georges Vanacker* (#1624), and it is another type locality specimen. *Vanackerite (from Tsumeb) is named after him.

Mineral Data
What's on the rock

Tunellite

Formula: 
SrB6O9(OH)2·3H2O
Strunz: 
6.FC.05
Hardness: 
2.5
Type Locality: 
U.S. Borax Mine (Pacific West Coast Borax; Pacific Coast Borax Co.; Boron Mine; U.S. Borax and Chemical Corp.; Kramer Mine; Baker Mine), Kramer Borate deposit, Boron, Kramer District, Kern Co., California, USA

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