Calcite and Scheelite Physical Properties

Calcite

Scheelite

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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

2.67-2.735.9-6.3

1 7.18

1.5 Fracture

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

Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Uneven

1.6 Cleavage

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

On {101}, distinct; on {112}, interrupted; on {001}, indistinct

1.7 Mohs Hardness

34.5-5

2 10

1.8 Chemical Composition

CaCO 3Ulrich Henn and Claudio C.

CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Calcite and Scheelite Chemical Formula

While comparing Calcite and Scheelite 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 Scheelite chemical formula.

Chemical formula of Calcite- CaCO 3Ulrich Henn and Claudio C.
Chemical formula of Scheelite- CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Calcite and Scheelite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Calcite and Scheelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Calcite and Scheelite Optical Properties during the identification of gemstone. Specific gravity of Calcite is 5.9-6.3 whereas that of Scheelite is 5.9-6.3.