Tanzanite and Wulfenite Physical Properties

Tanzanite

Wulfenite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Hard

Not Available

1.4 Specific Gravity

3.356.50-7.00

1 7.18

1.5 Fracture

Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)

Irregular, Brittle, Conchoidal

1.6 Cleavage

Perfect {010}, imperfect {100}

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

1.7 Mohs Hardness

6.5-73

2 10

1.8 Chemical Composition

Ca₂Al₃(SiO₄)₃(OH)

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

Tanzanite and Wulfenite Chemical Formula

While comparing Tanzanite and Wulfenite 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 Tanzanite and Wulfenite chemical formula.

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

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Tanzanite and Wulfenite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Tanzanite and Wulfenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tanzanite and Wulfenite Optical Properties during the identification of gemstone. Specific gravity of Tanzanite is 6.50-7.00 whereas that of Wulfenite is 6.50-7.00.