Sapphire and Gahnospinel Physical Properties

Sapphire

Gahnospinel

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

insoluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.95-4.033.65-4.55

1 7.18

1.5 Fracture

Uneven, Uneven, Gems, Sixth Edition (2006)

ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

None, but may exhibit parting

None, but may exhibit slight parting

1.7 Mohs Hardness

97.5-8

2 10

1.8 Chemical Composition

Al ₂ O ₃

(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)

Sapphire and Gahnospinel Chemical Formula

While comparing Sapphire and Gahnospinel 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 Sapphire and Gahnospinel chemical formula.

Chemical formula of Sapphire- Al ₂ O ₃
Chemical formula of Gahnospinel- (Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)

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Sapphire and Gahnospinel Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sapphire and Gahnospinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sapphire and Gahnospinel Optical Properties during the identification of gemstone. Specific gravity of Sapphire is 3.65-4.55 whereas that of Gahnospinel is 3.65-4.55.