Sylvite and Variscite Physical Properties

Sylvite

Variscite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

1.9932.42-2.58

1 7.18

1.5 Fracture

Uneven, Brittle

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

1.6 Cleavage

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

[010] perfect

1.7 Mohs Hardness

2.54-5

2 10

1.8 Chemical Composition

Not Available

AlPO₄ · 2(H₂O)

Sylvite and Variscite Chemical Formula

While comparing Sylvite and Variscite 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 Variscite chemical formula.

Chemical formula of Variscite- AlPO₄ · 2(H₂O)

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Sylvite and Variscite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sylvite and Variscite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sylvite and Variscite Optical Properties during the identification of gemstone. Specific gravity of Sylvite is 2.42-2.58 whereas that of Variscite is 2.42-2.58.