Variscite and Poudretteite Physical Properties

Variscite

Poudretteite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.42-2.582.51-2.53

1 7.18

1.5 Fracture

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

Conchoidal, Splintery

1.6 Cleavage

[010] perfect

None

1.7 Mohs Hardness

4-55

2 10

1.8 Chemical Composition

AlPO₄ · 2(H₂O)

KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)

Variscite and Poudretteite Chemical Formula

While comparing Variscite and Poudretteite 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 Poudretteite chemical formula.

Chemical formula of Variscite- AlPO₄ · 2(H₂O)
Chemical formula of Poudretteite- KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)

Compare Gems for Virgo

Variscite Vs Garnet

Variscite Vs Amazonite

Variscite Vs Aragonite

Variscite and Poudretteite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Variscite and Poudretteite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Variscite and Poudretteite Optical Properties during the identification of gemstone. Specific gravity of Variscite is 2.51-2.53 whereas that of Poudretteite is 2.51-2.53.