Apophyllite and Powellite Physical Properties

Apophyllite

Powellite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.30-2.504.23

1 7.18

1.5 Fracture

Uneven, UnevenArthur Thomas, Gemstones (2009)

UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

1.6 Cleavage

Perfect on (001)

{111} Distinct

1.7 Mohs Hardness

4.5-53.5-4

2 10

1.8 Chemical Composition

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

CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

Apophyllite and Powellite Chemical Formula

While comparing Apophyllite and Powellite 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 Powellite chemical formula.

Chemical formula of Apophyllite- KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
Chemical formula of Powellite- CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

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Apophyllite and Powellite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Apophyllite and Powellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apophyllite and Powellite Optical Properties during the identification of gemstone. Specific gravity of Apophyllite is 4.23 whereas that of Powellite is 4.23.