Apophyllite KF and Shigaite Physical Properties

Apophyllite KF

Shigaite

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1 Physical Properties

1.1 Tenacity

Brittle

Moderately ﬂexible

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.33-2.372.32

1 7.18

1.5 Fracture

Uneven, Brittle, Uneven, Brittle, Uneven

Flexible Flexible fragments.

1.6 Cleavage

Perfect on {001}, imperfect on {110}

Perfect on {0001}

1.7 Mohs Hardness

4.5-52

2 10

1.8 Chemical Composition

(K,Na)Ca4Si8O20(F,OH)•8(H2O)

Not Available

Apophyllite KF and Shigaite Chemical Formula

While comparing Apophyllite KF and Shigaite 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 Shigaite chemical formula.

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

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Apophyllite KF and Shigaite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Apophyllite KF and Shigaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apophyllite KF and Shigaite Optical Properties during the identification of gemstone. Specific gravity of Apophyllite KF is 2.32 whereas that of Shigaite is 2.32.