Variscite and Realgar Physical Properties

Variscite

Realgar

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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

2.42-2.583.56

1 7.18

1.5 Fracture

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

(e.g. graphite).

1.6 Cleavage

[010] perfect

{010} Good

1.7 Mohs Hardness

4-5Not Available

2 10

1.8 Chemical Composition

AlPO₄ · 2(H₂O)

AsSMichael OâDonoghue , Gems, Sixth Edition (2006)

Variscite and Realgar Chemical Formula

While comparing Variscite and Realgar 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 Realgar chemical formula.

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

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Variscite and Realgar Specific Gravity

Another important criteria for qualitative analysis of gemstones is Variscite and Realgar Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Variscite and Realgar Optical Properties during the identification of gemstone. Specific gravity of Variscite is 3.56 whereas that of Realgar is 3.56.