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Colemanite
Colemanite

Hercynite
Hercynite



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Colemanite
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Hercynite

Colemanite and Hercynite 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
-
{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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-
-
4.39
Uneven
{111} Indistinct, {111} Indistinct, {111} Indistinct
7.5-8
Fe2+ Al 2O 4Gemdat.org , Management Team (2012)

Colemanite and Hercynite Chemical Formula

While comparing Colemanite and Hercynite 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 Hercynite chemical formula.

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Colemanite and Hercynite Specific Gravity

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