Wulfenite and Thulite Physical Properties

Wulfenite

Thulite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

6.50-7.003.1

1 7.18

1.5 Fracture

Irregular, Brittle, Conchoidal

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

On {011}, distinct; on {001}, {013}, indistinct

Perfect {010} imperfect {100}

1.7 Mohs Hardness

36-7

2 10

1.8 Chemical Composition

PbMoO 4Walter Schumann , Gemstones of the world (2001)

Ca₂Al₃(SiO₄)₃(OH)

Wulfenite and Thulite Chemical Formula

While comparing Wulfenite 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 Wulfenite and Thulite chemical formula.

Chemical formula of Wulfenite- PbMoO 4Walter Schumann , Gemstones of the world (2001)
Chemical formula of Thulite- Ca₂Al₃(SiO₄)₃(OH)

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Wulfenite and Thulite Specific Gravity

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