Calcite and Thomsonite Physical Properties

Calcite

Thomsonite

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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

2.67-2.732.25-2.40

1 7.18

1.5 Fracture

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

UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)

1.6 Cleavage

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

perfect on {010}; good on {100}

1.7 Mohs Hardness

35-5.5

2 10

1.8 Chemical Composition

CaCO 3Ulrich Henn and Claudio C.

NaCa 2Al 5Si 5O 20 · 6H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Calcite and Thomsonite Chemical Formula

While comparing Calcite and Thomsonite 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 Thomsonite chemical formula.

Chemical formula of Calcite- CaCO 3Ulrich Henn and Claudio C.
Chemical formula of Thomsonite- NaCa 2Al 5Si 5O 20 · 6H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Calcite and Thomsonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Calcite and Thomsonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Calcite and Thomsonite Optical Properties during the identification of gemstone. Specific gravity of Calcite is 2.25-2.40 whereas that of Thomsonite is 2.25-2.40.