Apophyllite KF and Cryolite Physical Properties

Apophyllite KF

Cryolite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.33-2.372.97

1 7.18

1.5 Fracture

Uneven, Brittle, Uneven, Brittle, Uneven

Uneven

1.6 Cleavage

Perfect on {001}, imperfect on {110}

None observed

1.7 Mohs Hardness

4.5-52.5

2 10

1.8 Chemical Composition

(K,Na)Ca4Si8O20(F,OH)•8(H2O)

Na 3AlF 6Ulrich Henn and Claudio C.

Apophyllite KF and Cryolite Chemical Formula

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

Chemical formula of Apophyllite KF- (K,Na)Ca4Si8O20(F,OH)•8(H2O)
Chemical formula of Cryolite- Na 3AlF 6Ulrich Henn and Claudio C.

Compare Green Gemstones

Apophyllite KF Vs Langbeinite

Apophyllite KF Vs Nepouite

Apophyllite KF Vs Hauyne

Apophyllite KF and Cryolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Apophyllite KF and Cryolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apophyllite KF and Cryolite Optical Properties during the identification of gemstone. Specific gravity of Apophyllite KF is 2.97 whereas that of Cryolite is 2.97.