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Calcite
Calcite

Phenakite
Phenakite



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Calcite and Phenakite Physical Properties

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Physical Properties

Tenacity

Brittle
Brittle

Solubility

Soluble
-

Durability

-
-

Specific Gravity

2.67-2.732.90-2.98
1 7.18
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Fracture

Conchoidal
Conchoidal, ConchoidalWalter Schumann

Cleavage

Perfect on [10 1 1] three directions with angle of 74° 55
Distinct on {11 2 0}, imperfect on {10 1 1}

Mohs Hardness

37.5-8
2 10
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Chemical Composition

CaCO 3Ulrich Henn and Claudio C.
Be 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Calcite and Phenakite Chemical Formula

While comparing Calcite and Phenakite 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 Calcite and Phenakite chemical formula.

  • Chemical formula of Calcite- CaCO 3Ulrich Henn and Claudio C.
  • Chemical formula of Phenakite- Be 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Calcite and Phenakite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Calcite and Phenakite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Calcite and Phenakite Optical Properties during the identification of gemstone. Specific gravity of Calcite is 2.90-2.98 whereas that of Phenakite is 2.90-2.98.