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Probertite

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SER1008220

Probertite

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Description
Locality: 
Twenty Mule Team Canyon, Furnace Creek District, Inyo County, California, United States of America
Class: 
Crystal Group/Cluster
Size Range: 
Cabinet (10-18 cm)
Size: 
12 × 11 × 3.5 cm
Description

a large specimen featuring  groups of elongated grey-brown probertite crystals ; it comes with an old label

Mineral Data
What's on the rock

Probertite

Formula: 
NaCaB5O7(OH)4·3H2O
Strunz: 
6.EB.15
Hardness: 
3.5
Streak: 
White
Type Locality: 
Baker mine, 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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20
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Start 23 Apr 18:00
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