Vishnevite and Sapphirine Physical Properties

Vishnevite

Sapphirine

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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

Not Available3.40-3.58

1 7.18

1.5 Fracture

Brittle, Uneven

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Uneven

1.6 Cleavage

Perfect

{010} Perfect

1.7 Mohs Hardness

5-67.5

2 10

1.8 Chemical Composition

Not Available

(Al,Mg) 8(Al,Si) 6O 20Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Vishnevite and Sapphirine Chemical Formula

While comparing Vishnevite and Sapphirine 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 Vishnevite and Sapphirine chemical formula.

Chemical formula of Sapphirine- (Al,Mg) 8(Al,Si) 6O 20Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Vishnevite and Sapphirine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Vishnevite and Sapphirine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Vishnevite and Sapphirine Optical Properties during the identification of gemstone. Specific gravity of Vishnevite is 3.40-3.58 whereas that of Sapphirine is 3.40-3.58.