Variscite and Star Sapphire Physical Properties

Variscite

Star Sapphire

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.42-2.583.90-4.05

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

[010] perfect

Not Available

1.7 Mohs Hardness

4-5Not Available

2 10

1.8 Chemical Composition

AlPO₄ · 2(H₂O)

Al 2O 3Ulrich Henn and Claudio C.

Variscite and Star Sapphire Chemical Formula

While comparing Variscite and Star Sapphire 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 Star Sapphire chemical formula.

Chemical formula of Variscite- AlPO₄ · 2(H₂O)
Chemical formula of Star Sapphire- Al 2O 3Ulrich Henn and Claudio C.

Compare Gems for Virgo

Variscite Vs Aragonite

Variscite Vs Amazonite

Variscite Vs Garnet

Variscite and Star Sapphire Specific Gravity

Another important criteria for qualitative analysis of gemstones is Variscite and Star Sapphire Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Variscite and Star Sapphire Optical Properties during the identification of gemstone. Specific gravity of Variscite is 3.90-4.05 whereas that of Star Sapphire is 3.90-4.05.