Thulite and Cryolite Physical Properties

Thulite

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

3.12.97

1 7.18

1.5 Fracture

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

Uneven

1.6 Cleavage

Perfect {010} imperfect {100}

None observed

1.7 Mohs Hardness

6-72.5

2 10

1.8 Chemical Composition

Ca₂Al₃(SiO₄)₃(OH)

Na 3AlF 6Ulrich Henn and Claudio C.

Thulite and Cryolite Chemical Formula

While comparing Thulite 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 Thulite and Cryolite chemical formula.

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

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Thulite and Cryolite Specific Gravity

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