Topaz and Sapphirine Physical Properties

Topaz

Sapphirine

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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

3.49-3.573.40-3.58

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

[001] Perfect

{010} Perfect

1.7 Mohs Hardness

87.5

2 10

1.8 Chemical Composition

Al₂SiO₄(F,OH)₂

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

Topaz and Sapphirine Chemical Formula

While comparing Topaz 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 Topaz and Sapphirine chemical formula.

Chemical formula of Topaz- Al₂SiO₄(F,OH)₂
Chemical formula of Sapphirine- (Al,Mg) 8(Al,Si) 6O 20Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Gems for Sagittarius

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Topaz Vs Quartz Smoky

Topaz Vs Pietersite

Topaz and Sapphirine Specific Gravity

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