Calcite and Pyrophyllite Physical Properties

Calcite

Pyrophyllite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.67-2.732.65-2.90

1 7.18

1.5 Fracture

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

Gemstones (2009), Flexible Flexible fragments.

1.6 Cleavage

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

{001} Perfect

1.7 Mohs Hardness

3Not Available

2 10

1.8 Chemical Composition

CaCO 3Ulrich Henn and Claudio C.

Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Calcite and Pyrophyllite Chemical Formula

While comparing Calcite and Pyrophyllite 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 Pyrophyllite chemical formula.

Chemical formula of Calcite- CaCO 3Ulrich Henn and Claudio C.
Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Calcite and Pyrophyllite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Calcite and Pyrophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Calcite and Pyrophyllite Optical Properties during the identification of gemstone. Specific gravity of Calcite is 2.65-2.90 whereas that of Pyrophyllite is 2.65-2.90.