Sinhalite and Ruby Physical Properties

Sinhalite

Ruby

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.46-3.503.97-4.05

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

Conchoidal

1.6 Cleavage

Not Available

No true cleavage

1.7 Mohs Hardness

6-79

2 10

1.8 Chemical Composition

MgAlBO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Al ₂ O ₃

Sinhalite and Ruby Chemical Formula

While comparing Sinhalite and Ruby 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 Sinhalite and Ruby chemical formula.

Chemical formula of Sinhalite- MgAlBO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Ruby- Al ₂ O ₃

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Sinhalite and Ruby Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sinhalite and Ruby Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sinhalite and Ruby Optical Properties during the identification of gemstone. Specific gravity of Sinhalite is 3.97-4.05 whereas that of Ruby is 3.97-4.05.