Allanite and Apophyllite KF Physical Properties

Allanite

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

3.40-4.202.33-2.37

1 7.18

1.5 Fracture

Not Available

Uneven, Brittle, Uneven, Brittle, Uneven

1.6 Cleavage

Not Available

Perfect on {001}, imperfect on {110}

1.7 Mohs Hardness

Not Available4.5-5

2 10

1.8 Chemical Composition

Not Available

(K,Na)Ca4Si8O20(F,OH)•8(H2O)

Allanite and Apophyllite KF Chemical Formula

While comparing Allanite 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 Allanite and Apophyllite KF chemical formula.

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

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Allanite and Apophyllite KF Specific Gravity

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