Ulexite

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Realgar, Ulexite
Kramer Borate deposit, Boron, Kramer District, Kern Co., California, USA

Item-No.: MINS2110
Price: 7.00 EUR 
Ulexite
Kramer Borate deposit, Boron, Kramer District, Kern Co., California, USA

Item-No.: MIN4005
Price: 55.00 EUR 

Synonyms:  Boronatro-calcite, Cotton-ball Borax, Franklandite, Hayesite, Natroborocalcite, Natronboroncalcite, Raphite, Stiberite, TV stone
Classification:  Borates
Chemical formula:  NaCa[B5O6(OH)6] · 5H2O
Crystal system:  Triclinic
Density (g/cm3):  1,955 measured and calculated
Tenacity:  Brittle
Cleavage:  Perfect on {010}, good on {110}, poor on {110}
Fracture:  Irregular/uneven
Hardness (Mohs):  2,5
Colour:  Colourless, white, grey
Lustre:  Vitreous, silky
Streak:  White
Type locality:  Iquique Province, Tarapacá Region, Chile
Application:  One of the main source for boron, chemical industry, gemstone

 


 

 


 

 
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