Ruby and Gahnospinel Physical Properties

Ruby

Gahnospinel

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.97-4.053.65-4.55

1 7.18

1.5 Fracture

Conchoidal

ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

No true cleavage

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)

Ruby and Gahnospinel Chemical Formula

While comparing Ruby 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 Ruby and Gahnospinel chemical formula.

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

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Ruby and Gahnospinel Specific Gravity

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