Cryolite and Thulite Physical Properties

Cryolite

Thulite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.973.1

1 7.18

1.5 Fracture

Uneven

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

None observed

Perfect {010} imperfect {100}

1.7 Mohs Hardness

2.56-7

2 10

1.8 Chemical Composition

Na 3AlF 6Ulrich Henn and Claudio C.

Ca₂Al₃(SiO₄)₃(OH)

Cryolite and Thulite Chemical Formula

While comparing Cryolite and Thulite 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 Cryolite and Thulite chemical formula.

Chemical formula of Cryolite- Na 3AlF 6Ulrich Henn and Claudio C.
Chemical formula of Thulite- Ca₂Al₃(SiO₄)₃(OH)

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Cryolite and Thulite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cryolite and Thulite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cryolite and Thulite Optical Properties during the identification of gemstone. Specific gravity of Cryolite is 3.1 whereas that of Thulite is 3.1.