Sapphirine and Aragonite Physical Properties

Sapphirine

Aragonite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Dilute acid

1.3 Durability

Not Available

1.4 Specific Gravity

3.40-3.582.93-2.96

1 7.18

1.5 Fracture

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

Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

1.6 Cleavage

{010} Perfect

Distinct on {010}, imperfect {110} and {011}

1.7 Mohs Hardness

7.53.5-4

2 10

1.8 Chemical Composition

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

CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Sapphirine and Aragonite Chemical Formula

While comparing Sapphirine and Aragonite 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 Aragonite 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 Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Sapphirine and Aragonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sapphirine and Aragonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sapphirine and Aragonite Optical Properties during the identification of gemstone. Specific gravity of Sapphirine is 2.93-2.96 whereas that of Aragonite is 2.93-2.96.