Sapphirine and Andradite Garnet Physical Properties

Sapphirine

Andradite Garnet

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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

3.40-3.583.8-3.9

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

{010} Perfect

None

1.7 Mohs Hardness

7.56.5-7.5

2 10

1.8 Chemical Composition

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

Ca₃Fe³⁺₂Si₃O₁₂

Sapphirine and Andradite Garnet Chemical Formula

While comparing Sapphirine and Andradite Garnet 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 Andradite Garnet 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 Andradite Garnet- Ca₃Fe³⁺₂Si₃O₁₂

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Sapphirine and Andradite Garnet Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sapphirine and Andradite Garnet Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sapphirine and Andradite Garnet Optical Properties during the identification of gemstone. Specific gravity of Sapphirine is 3.8-3.9 whereas that of Andradite Garnet is 3.8-3.9.