Zinnwaldite and Sapphirine Physical Properties

Zinnwaldite

Sapphirine

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1 Physical Properties

1.1 Tenacity

Elastic

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.9-3.13.40-3.58

1 7.18

1.5 Fracture

Uneven

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

1.6 Cleavage

Perfect basal {001}

{010} Perfect

1.7 Mohs Hardness

3.5-4.07.5

2 10

1.8 Chemical Composition

Not Available

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

Zinnwaldite and Sapphirine Chemical Formula

While comparing Zinnwaldite 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 Zinnwaldite 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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Zinnwaldite and Sapphirine Specific Gravity

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