Apophyllite and Scheelite Physical Properties

Apophyllite

Scheelite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.30-2.505.9-6.3

1 7.18

1.5 Fracture

Uneven, UnevenArthur Thomas, Gemstones (2009)

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

1.6 Cleavage

Perfect on (001)

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

1.7 Mohs Hardness

4.5-54.5-5

2 10

1.8 Chemical Composition

KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.

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

Apophyllite and Scheelite Chemical Formula

While comparing Apophyllite 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 Apophyllite and Scheelite chemical formula.

Chemical formula of Apophyllite- KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
Chemical formula of Scheelite- CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Apophyllite and Scheelite Specific Gravity

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