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Colemanite
Colemanite

Ettringite
Ettringite



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Colemanite
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Ettringite

Colemanite and Ettringite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
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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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Partially soluble in water
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1.77
-
Perfect on {10 1 0}
2-2.5
Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)

Colemanite and Ettringite Chemical Formula

While comparing Colemanite and Ettringite 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 Ettringite chemical formula.

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Colemanite and Ettringite Specific Gravity

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