Selenite and Sapphirine Physical Properties

Selenite

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

Not Available

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

1.6 Cleavage

Not Available

{010} Perfect

1.7 Mohs Hardness

27.5

2 10

1.8 Chemical Composition

Not Available

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

Selenite and Sapphirine Chemical Formula

While comparing Selenite 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 Selenite 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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Selenite and Sapphirine Specific Gravity

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