Aragonite and Ruby Physical Properties

Aragonite

Ruby

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Dilute acid

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.93-2.963.97-4.05

1 7.18

1.5 Fracture

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

Conchoidal

1.6 Cleavage

Distinct on {010}, imperfect {110} and {011}

No true cleavage

1.7 Mohs Hardness

3.5-49

2 10

1.8 Chemical Composition

CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Al ₂ O ₃

Aragonite and Ruby Chemical Formula

While comparing Aragonite 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 Aragonite and Ruby chemical formula.

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

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Aragonite and Ruby Specific Gravity

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