Zoisite and Star Sapphire Physical Properties

Zoisite

Star Sapphire

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

3.20-3.50

Uneven, Conchoidal, Even

Perfect {010} imperfect {100}

6-7

Ca₂Al₃(SiO₄)₃(OH)

3.90-4.05

None

-9999

Al 2O 3Ulrich Henn and Claudio C.

Zoisite and Star Sapphire Chemical Formula

While comparing Zoisite 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 Zoisite and Star Sapphire chemical formula.

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Zoisite and Star Sapphire Specific Gravity

Another important criteria for qualitative analysis of gemstones is Zoisite and Star Sapphire Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Zoisite Vs Star Sapphire during the identification of gemstone. Specific gravity of Zoisite is whereas that of Star Sapphire is .