Phenakite and Vishnevite Physical Properties

Phenakite

Vishnevite

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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

2.90-2.98Not Available

1 7.18

1.5 Fracture

Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001), Brittle

Brittle, Uneven

1.6 Cleavage

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

Perfect

1.7 Mohs Hardness

7.5-85-6

2 10

1.8 Chemical Composition

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

Not Available

Phenakite and Vishnevite Chemical Formula

While comparing Phenakite and Vishnevite 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 Phenakite and Vishnevite chemical formula.

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

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Phenakite and Vishnevite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Phenakite and Vishnevite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phenakite and Vishnevite Optical Properties during the identification of gemstone. Specific gravity of Phenakite is Not Available whereas that of Vishnevite is Not Available.