Variscite and Tanzanite Physical Properties

Variscite

Tanzanite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

Hard

1.4 Specific Gravity

2.42-2.58

3.35

1.5 Fracture

Conchoidal, Splintery, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle

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

1.6 Cleavage

[010] perfect

Perfect {010}, imperfect {100}

1.7 Mohs Hardness

4-5

6.5-7

1.8 Chemical Composition

AlPO₄ · 2(H₂O)

Ca₂Al₃(SiO₄)₃(OH)

Variscite and Tanzanite Chemical Formula

While comparing Variscite and Tanzanite 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 Variscite and Tanzanite chemical formula.

Chemical formula of Variscite- AlPO₄ · 2(H₂O)
Chemical formula of Tanzanite- Ca₂Al₃(SiO₄)₃(OH)

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Variscite and Tanzanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Variscite and Tanzanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Variscite and Tanzanite Optical Properties during the identification of gemstone. Specific gravity of Variscite is 3.35 whereas that of Tanzanite is 3.35.