Thulite and Villiaumite Physical Properties

Thulite

Villiaumite

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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

3.12.79

1 7.18

1.5 Fracture

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

Brittle, Metallic

1.6 Cleavage

Perfect {010} imperfect {100}

{100} Perfect, {010} Perfect, {001} Perfect

1.7 Mohs Hardness

6-72

2 10

1.8 Chemical Composition

Ca₂Al₃(SiO₄)₃(OH)

NaFUlrich Henn and Claudio C.

Thulite and Villiaumite Chemical Formula

While comparing Thulite and Villiaumite 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 Villiaumite chemical formula.

Chemical formula of Thulite- Ca₂Al₃(SiO₄)₃(OH)
Chemical formula of Villiaumite- NaFUlrich Henn and Claudio C.

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Thulite and Villiaumite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Thulite and Villiaumite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Thulite and Villiaumite Optical Properties during the identification of gemstone. Specific gravity of Thulite is 2.79 whereas that of Villiaumite is 2.79.