Ruby and Apophyllite Physical Properties

Ruby

Apophyllite

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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

3.97-4.052.30-2.50

1 7.18

1.5 Fracture

Conchoidal

Uneven, UnevenArthur Thomas, Gemstones (2009)

1.6 Cleavage

No true cleavage

Perfect on (001)

1.7 Mohs Hardness

94.5-5

2 10

1.8 Chemical Composition

Al ₂ O ₃

KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.

Ruby and Apophyllite Chemical Formula

While comparing Ruby and Apophyllite 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 chemical formula.

Chemical formula of Ruby- Al ₂ O ₃
Chemical formula of Apophyllite- KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.

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Ruby and Apophyllite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ruby and Apophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ruby and Apophyllite Optical Properties during the identification of gemstone. Specific gravity of Ruby is 2.30-2.50 whereas that of Apophyllite is 2.30-2.50.