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Colemanite
Colemanite

Bertrandite
Bertrandite



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Colemanite
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Bertrandite

Colemanite and Bertrandite Physical Properties

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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2.59-2.60
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{001} Perfect, {110} Distinct, {101} Distinct
6-7
Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)

Colemanite and Bertrandite Chemical Formula

While comparing Colemanite and Bertrandite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Colemanite and Bertrandite chemical formula.

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Colemanite and Bertrandite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Colemanite and Bertrandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Colemanite Vs Bertrandite during the identification of gemstone. Specific gravity of Colemanite is whereas that of Bertrandite is .