Sylvite and Tanzanite Physical Properties

Sylvite

Tanzanite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

Hard

1.4 Specific Gravity

1.993

3.35

1.5 Fracture

Uneven, Brittle

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

1.6 Cleavage

Perfect on [100], [010], [001]

Perfect {010}, imperfect {100}

1.7 Mohs Hardness

2.5

6.5-7

1.8 Chemical Composition

Not Available

Ca₂Al₃(SiO₄)₃(OH)

Sylvite and Tanzanite Chemical Formula

While comparing Sylvite 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 Sylvite and Tanzanite chemical formula.

Chemical formula of Tanzanite- Ca₂Al₃(SiO₄)₃(OH)

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Sylvite and Tanzanite Specific Gravity

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