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Tincalconite Psm Borax

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PDM750803

Tincalconite Psm Borax

Pseudomorph

Description Tabs

Description
Locality: 
Kramer Borate Deposit, Kern County, California, United States of America
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.2 × 5.5 × 3 cm
Largest Crystal: 
2.80cm
Description

Snow white tincalconite crystals completely replacing sharp, spiky tabular crystals of borax up to 28 mm. The aggregate is a very lightweight plate and a good representative specimen of this unusual type of pseudomorph.

Acquired in 1978 by Dr. Gerard Vogel (NL).

Mineral Data
What's on the rock

Tincalconite

Formula: 
Na2(B4O7)·5H2O
Strunz: 
6.DA.15
Hardness: 
2.0
Type Locality: 
Searles Lake, San Bernardino Co., California, USA

Borax

Formula: 
Na2(B4O5)(OH)4·8H2O
Strunz: 
6.DA.10
Crystal System: 
Monoclinic
Hardness: 
2.0 - 2.5
Streak: 
White
Type Locality: 
Ladakh, Jammu and Kashmir, India

Seller Information

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