Sapphirine and Williamsite Physical Properties

Sapphirine

Williamsite

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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

3.40-3.582.51-2.63

1 7.18

1.5 Fracture

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

Conchoidal, Conchoidal, Handbook of mineralogy (2001)

1.6 Cleavage

{010} Perfect

Not Available

1.7 Mohs Hardness

7.54

2 10

1.8 Chemical Composition

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

(Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)

Sapphirine and Williamsite Chemical Formula

While comparing Sapphirine and Williamsite 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 Sapphirine and Williamsite chemical formula.

Chemical formula of Sapphirine- (Al,Mg) 8(Al,Si) 6O 20Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Williamsite- (Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)

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Sapphirine and Williamsite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sapphirine and Williamsite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sapphirine and Williamsite Optical Properties during the identification of gemstone. Specific gravity of Sapphirine is 2.51-2.63 whereas that of Williamsite is 2.51-2.63.