Vishnevite and Colemanite Physical Properties

Vishnevite

Colemanite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

Not Available2.40-2.42

1 7.18

1.5 Fracture

Brittle, Uneven

Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic

1.6 Cleavage

Perfect

{010} Perfect, {001} Distinct

1.7 Mohs Hardness

5-64.5

2 10

1.8 Chemical Composition

Not Available

Ca 2B 6O 11 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Vishnevite and Colemanite Chemical Formula

While comparing Vishnevite and Colemanite 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 Vishnevite and Colemanite chemical formula.

Chemical formula of Colemanite- Ca 2B 6O 11 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Vishnevite and Colemanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Vishnevite and Colemanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Vishnevite and Colemanite Optical Properties during the identification of gemstone. Specific gravity of Vishnevite is 2.40-2.42 whereas that of Colemanite is 2.40-2.42.