Aragonite and Star Sapphire Physical Properties

Aragonite

Star Sapphire

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Dilute acid

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.93-2.963.90-4.05

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

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

Not Available

1.7 Mohs Hardness

3.5-4Not Available

2 10

1.8 Chemical Composition

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

Al 2O 3Ulrich Henn and Claudio C.

Aragonite and Star Sapphire Chemical Formula

While comparing Aragonite and Star 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 Aragonite and Star Sapphire chemical formula.

Chemical formula of Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Star Sapphire- Al 2O 3Ulrich Henn and Claudio C.

Compare Gems for Virgo

Aragonite Vs Variscite

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Aragonite Vs Zircon

Aragonite and Star Sapphire Specific Gravity

Another important criteria for qualitative analysis of gemstones is Aragonite and Star Sapphire Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Aragonite and Star Sapphire Optical Properties during the identification of gemstone. Specific gravity of Aragonite is 3.90-4.05 whereas that of Star Sapphire is 3.90-4.05.