Austinite and Phenakite Physical Properties

Austinite

Phenakite

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Physical Properties

Tenacity

Brittle

Solubility

Easily soluble in cold dilute HCl

Durability

Specific Gravity

4.122.90-2.98

1 7.18

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Fracture

Uneven

Conchoidal, ConchoidalWalter Schumann

Cleavage

Good in two directions parallel to the prism faces {110}

Distinct on {11 2 0}, imperfect on {10 1 1}

Mohs Hardness

4-4.57.5-8

2 10

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Chemical Composition

CaZn(AsO4)(OH)

Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Austinite and Phenakite Chemical Formula

While comparing Austinite and Phenakite 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 Austinite and Phenakite chemical formula.

Chemical formula of Austinite- CaZn(AsO4)(OH)
Chemical formula of Phenakite- Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Austinite and Phenakite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Austinite and Phenakite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Austinite and Phenakite Optical Properties during the identification of gemstone. Specific gravity of Austinite is 2.90-2.98 whereas that of Phenakite is 2.90-2.98.