Sapphirine and Andesine Physical Properties

Sapphirine

Andesine

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.40-3.582.65-2.69

1 7.18

1.5 Fracture

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

Uneven, Uneven, Conchoidal, Uneven, Gems, Sixth Edition (2006)

1.6 Cleavage

{010} Perfect

Perfect on {001}, good on {010}

1.7 Mohs Hardness

7.56-6.5

2 10

1.8 Chemical Composition

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

(Na,Ca)Al_1-2Si_3-2O₈

Sapphirine and Andesine Chemical Formula

While comparing Sapphirine and Andesine 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 Andesine 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 Andesine- (Na,Ca)Al_1-2Si_3-2O₈

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Sapphirine and Andesine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sapphirine and Andesine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sapphirine and Andesine Optical Properties during the identification of gemstone. Specific gravity of Sapphirine is 2.65-2.69 whereas that of Andesine is 2.65-2.69.