Topaz and Cacoxenite Physical Properties

Topaz

Cacoxenite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.49-3.572.2-2.6

1 7.18

1.5 Fracture

Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle

Uneven

1.6 Cleavage

[001] Perfect

None

1.7 Mohs Hardness

83-4

2 10

1.8 Chemical Composition

Al₂SiO₄(F,OH)₂

(Fe+++,Al)25(PO4)17O6(OH)12•75(H2O)

Topaz and Cacoxenite Chemical Formula

While comparing Topaz and Cacoxenite 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 Topaz and Cacoxenite chemical formula.

Chemical formula of Topaz- Al₂SiO₄(F,OH)₂
Chemical formula of Cacoxenite- (Fe+++,Al)25(PO4)17O6(OH)12•75(H2O)

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Topaz and Cacoxenite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Topaz and Cacoxenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Topaz and Cacoxenite Optical Properties during the identification of gemstone. Specific gravity of Topaz is 2.2-2.6 whereas that of Cacoxenite is 2.2-2.6.