Gahnospinel and Sapphire Physical Properties

Gahnospinel

Sapphire

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.65-4.553.95-4.03

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009)

Uneven, Uneven, Gems, Sixth Edition (2006)

1.6 Cleavage

None, but may exhibit slight parting

None, but may exhibit parting

1.7 Mohs Hardness

7.5-89

2 10

1.8 Chemical Composition

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

Al ₂ O ₃

Gahnospinel and Sapphire Chemical Formula

While comparing Gahnospinel and Sapphire 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 Gahnospinel and Sapphire chemical formula.

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

Compare Blue Gemstones

Gahnospinel Vs Hydrogrossular

Gahnospinel Vs Indicolite Blue Tourmaline

Gahnospinel Vs Jeremejevite

Gahnospinel and Sapphire Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gahnospinel and Sapphire Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gahnospinel and Sapphire Optical Properties during the identification of gemstone. Specific gravity of Gahnospinel is 3.95-4.03 whereas that of Sapphire is 3.95-4.03.