Ruby and Pleonaste Physical Properties

Ruby

Pleonaste

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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

3.97-4.053.80

1 7.18

1.5 Fracture

Conchoidal

Not Available

1.6 Cleavage

No true cleavage

Not Available

1.7 Mohs Hardness

2 10

1.8 Chemical Composition

Al ₂ O ₃

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

Ruby and Pleonaste Chemical Formula

While comparing Ruby and Pleonaste 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 Pleonaste chemical formula.

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

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Ruby and Pleonaste Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ruby and Pleonaste Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ruby and Pleonaste Optical Properties during the identification of gemstone. Specific gravity of Ruby is 3.80 whereas that of Pleonaste is 3.80.