Variscite and Sylvite Physical Properties

Variscite

Sylvite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.42-2.581.993

1 7.18

1.5 Fracture

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

Uneven, Brittle

1.6 Cleavage

[010] perfect

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

1.7 Mohs Hardness

4-52.5

2 10

1.8 Chemical Composition

AlPO₄ · 2(H₂O)

Not Available

Variscite and Sylvite Chemical Formula

While comparing Variscite and Sylvite 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 Sylvite chemical formula.

Chemical formula of Variscite- AlPO₄ · 2(H₂O)

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Variscite and Sylvite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Variscite and Sylvite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Variscite and Sylvite Optical Properties during the identification of gemstone. Specific gravity of Variscite is 1.993 whereas that of Sylvite is 1.993.