Realgar and Variscite Physical Properties

Realgar

Variscite

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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

3.562.42-2.58

1 7.18

1.5 Fracture

(e.g. graphite).

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

1.6 Cleavage

{010} Good

[010] perfect

1.7 Mohs Hardness

Not Available4-5

2 10

1.8 Chemical Composition

AsSMichael OâDonoghue , Gems, Sixth Edition (2006)

AlPO₄ · 2(H₂O)

Realgar and Variscite Chemical Formula

While comparing Realgar 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 Realgar and Variscite chemical formula.

Chemical formula of Realgar- AsSMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Variscite- AlPO₄ · 2(H₂O)

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Realgar and Variscite Specific Gravity

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