Adamite and Variscite Physical Properties

Adamite

Variscite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.32-4.48

2.42-2.58

1.5 Fracture

Uneven, Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven, Subconchoidal, Brittle, Metallic, Brittle, Metallic

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

1.6 Cleavage

{101}, good; {010}, poor

[010] perfect

1.7 Mohs Hardness

3.5

4-5

1.8 Chemical Composition

Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)

AlPO₄ · 2(H₂O)

Adamite and Variscite Chemical Formula

While comparing Adamite 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 Adamite and Variscite chemical formula.

Chemical formula of Adamite- Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)
Chemical formula of Variscite- AlPO₄ · 2(H₂O)

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Adamite and Variscite Specific Gravity

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