Topaz and Cryolite Physical Properties

Topaz

Cryolite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.49-3.572.97

1 7.18

1.5 Fracture

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

Uneven

1.6 Cleavage

[001] Perfect

None observed

1.7 Mohs Hardness

82.5

2 10

1.8 Chemical Composition

Al₂SiO₄(F,OH)₂

Na 3AlF 6Ulrich Henn and Claudio C.

Topaz and Cryolite Chemical Formula

While comparing Topaz and Cryolite 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 Cryolite chemical formula.

Chemical formula of Topaz- Al₂SiO₄(F,OH)₂
Chemical formula of Cryolite- Na 3AlF 6Ulrich Henn and Claudio C.

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Topaz and Cryolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Topaz and Cryolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Topaz and Cryolite Optical Properties during the identification of gemstone. Specific gravity of Topaz is 2.97 whereas that of Cryolite is 2.97.