Ruby and Apophyllite KF Physical Properties

Ruby

Apophyllite KF

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.97-4.052.33-2.37

1 7.18

1.5 Fracture

Conchoidal

Uneven, Brittle, Uneven, Brittle, Uneven

1.6 Cleavage

No true cleavage

Perfect on {001}, imperfect on {110}

1.7 Mohs Hardness

94.5-5

2 10

1.8 Chemical Composition

Al ₂ O ₃

(K,Na)Ca4Si8O20(F,OH)•8(H2O)

Ruby and Apophyllite KF Chemical Formula

While comparing Ruby 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 Ruby and Apophyllite KF chemical formula.

Chemical formula of Ruby- Al ₂ O ₃
Chemical formula of Apophyllite KF- (K,Na)Ca4Si8O20(F,OH)•8(H2O)

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Ruby and Apophyllite KF Specific Gravity

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