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Colemanite
Colemanite
☒

Color change garnet
Color change garnet
☒



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Colemanite
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Color change garnet
Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
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-
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2.40-2.42
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{010} Perfect, {001} Distinct
4.5
Ca 2B 6O 11 · 5H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
 
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-
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-9999
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None
-9999
Mg3Al2(SiO4)3