Star Sapphire and Anthophyllite Physical Properties

Star Sapphire

Anthophyllite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.90-4.052.9-3.5

1 7.18

1.5 Fracture

Not Available

Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, Brittle

1.6 Cleavage

Not Available

{110} Perfect, {???} Distinct, {???} Distinct

1.7 Mohs Hardness

Not Available5.5-6

2 10

1.8 Chemical Composition

Al 2O 3Ulrich Henn and Claudio C.

(Mg,Fe2+ ) 2(Mg,Fe2+ ) 5Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)

Star Sapphire and Anthophyllite Chemical Formula

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

Chemical formula of Star Sapphire- Al 2O 3Ulrich Henn and Claudio C.
Chemical formula of Anthophyllite- (Mg,Fe2+ ) 2(Mg,Fe2+ ) 5Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)

Compare Blue Gemstones

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Star Sapphire Vs Verdite

Star Sapphire Vs Tortoiseshell

Star Sapphire and Anthophyllite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Star Sapphire and Anthophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Star Sapphire and Anthophyllite Optical Properties during the identification of gemstone. Specific gravity of Star Sapphire is 2.9-3.5 whereas that of Anthophyllite is 2.9-3.5.