Feldspar and Sapphirine Physical Properties

Feldspar

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

2.56-2.753.40-3.58

1 7.18

1.5 Fracture

Uneven, Conchoidal, Uneven, Conchoidal, Gemstones of the world (2001)

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

1.6 Cleavage

two or three

{010} Perfect

1.7 Mohs Hardness

6-6.57.5

2 10

1.8 Chemical Composition

Not Available

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

Feldspar and Sapphirine Chemical Formula

While comparing Feldspar 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 Feldspar 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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Feldspar Vs Glass

Feldspar and Sapphirine Specific Gravity

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