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Realgar & Ulexite

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PJM121359

Realgar & Ulexite

Description Tabs

Description
Locality: 
U S Borax Mine, Boron, Kern County, California, United States of America
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.8 × 3.1 × 2.8 cm
Description

A red realgar crust on fibrous ulexite. An uncommon association rarely available at any other locality except the Boron Open Pit. The locality is now all but closed to collecting.

Mineral Data
What's on the rock

Realgar

Formula: 
As4S4
Strunz: 
2.FA.15a
Crystal System: 
Monoclinic
Hardness: 
1.5 - 2.0

Ulexite

Formula: 
NaCa[B5O6(OH)6]·5H2O
Strunz: 
6.EA.25
Crystal System: 
Triclinic
Hardness: 
2.5
Type Locality: 
Iquique Province, Tarapacá Region, Chile
Earthstones Australia

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