Iolite and Apophyllite KF Physical Properties

Iolite

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

2.6-2.72.33-2.37

1 7.18

1.5 Fracture

Not Available

Uneven, Brittle, Uneven, Brittle, Uneven

1.6 Cleavage

3,1

Perfect on {001}, imperfect on {110}

1.7 Mohs Hardness

7-7.54.5-5

2 10

1.8 Chemical Composition

Mg₂Al₄Si₅O₁₈

(K,Na)Ca4Si8O20(F,OH)•8(H2O)

Iolite and Apophyllite KF Chemical Formula

While comparing Iolite 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 Iolite and Apophyllite KF chemical formula.

Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈
Chemical formula of Apophyllite KF- (K,Na)Ca4Si8O20(F,OH)•8(H2O)

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Iolite and Apophyllite KF Specific Gravity

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