Calcite and Phenakite Physical Properties

Calcite

Phenakite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.67-2.732.90-2.98

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal

Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001), Brittle

1.6 Cleavage

Perfect on [10 1 1] three directions with angle of 74° 55

Distinct on {11 2 0}, imperfect on {10 1 1}

1.7 Mohs Hardness

37.5-8

2 10

1.8 Chemical Composition

CaCO 3Ulrich Henn and Claudio C.

Be 2SiO 4Michael OâDonoghue , 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 OâDonoghue , Gems, Sixth Edition (2006) More from other references

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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.