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Mineralpedia Details for Chambersite

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Chambersite

Chambersite

Named for the type locality at Barbers Hill salt dome in Chambers County in Texas, USA. Chambersite is a rare mineral that can additionally be found in localities in China, Ukraine, and Canada. It occurs as pseudotetrahedral crystals in brine residue in salt dome extraction wells. Colorless to deep purple crystals that can darken upon exposure to sunlight. Associated minerals include halite, anhydrite, and gypsum.

Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/chambersite.pdf

Formula
Mn3B7O13Cl 
Crystal System
Orthorhombic 
Crystal Habit
Euhedral Crystals, Pseudo Tetragonal 
Cleavage
None, None, None 
Luster
Vitreous (Glassy) 
Color
colorless, purple red 
Streak
white 
Class
Orthorhombic - Pyramidal 
Fracture
Conchoidal - Uneven 
Hardness
WebMineral
View Chambersite 
Mindat
View Chambersite 

Chambersite from Venice Salt Dome, Louisiana, United States

Chambersite
            from Venice Salt Dome, Louisiana, United States

Chambersite crystals to 7mm.

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