Apophyllite KF and Allanite Physical Properties

Apophyllite KF

Allanite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.33-2.373.40-4.20

1 7.18

1.5 Fracture

Uneven, Brittle, Uneven, Brittle, Uneven

Not Available

1.6 Cleavage

Perfect on {001}, imperfect on {110}

Not Available

1.7 Mohs Hardness

4.5-5Not Available

2 10

1.8 Chemical Composition

(K,Na)Ca4Si8O20(F,OH)•8(H2O)

Not Available

Apophyllite KF and Allanite Chemical Formula

While comparing Apophyllite KF and Allanite 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 Allanite chemical formula.

Chemical formula of Apophyllite KF- (K,Na)Ca4Si8O20(F,OH)•8(H2O)

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Apophyllite KF and Allanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Apophyllite KF and Allanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apophyllite KF and Allanite Optical Properties during the identification of gemstone. Specific gravity of Apophyllite KF is 3.40-4.20 whereas that of Allanite is 3.40-4.20.