Powellite and Apophyllite KF Physical Properties

Powellite

Apophyllite KF

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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

4.232.33-2.37

1 7.18

1.5 Fracture

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

Uneven, Brittle, Uneven, Brittle, Uneven

1.6 Cleavage

{111} Distinct

Perfect on {001}, imperfect on {110}

1.7 Mohs Hardness

3.5-44.5-5

2 10

1.8 Chemical Composition

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

(K,Na)Ca4Si8O20(F,OH)•8(H2O)

Powellite and Apophyllite KF Chemical Formula

While comparing Powellite and Apophyllite KF 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 Powellite and Apophyllite KF chemical formula.

Chemical formula of Powellite- CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Apophyllite KF- (K,Na)Ca4Si8O20(F,OH)•8(H2O)

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Powellite and Apophyllite KF Specific Gravity

Another important criteria for qualitative analysis of gemstones is Powellite and Apophyllite KF Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Powellite and Apophyllite KF Optical Properties during the identification of gemstone. Specific gravity of Powellite is 2.33-2.37 whereas that of Apophyllite KF is 2.33-2.37.