Afghanite and Star Sapphire Physical Properties

Afghanite

Star Sapphire

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

2.55-2.65

Conchoidal

Perfect {10 1 0}

5.5-6

(Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)

3.90-4.05

None

-9999

Al 2O 3Ulrich Henn and Claudio C.

Afghanite and Star Sapphire Chemical Formula

While comparing Afghanite 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 Afghanite and Star Sapphire chemical formula.

Compare Blue Gemstones

Afghanite Vs Glaucophane

Afghanite Vs Hauyne

Afghanite Vs Kainite

Afghanite and Star Sapphire Specific Gravity

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