Star Sapphire and Friedelite Physical Properties

Star Sapphire

Friedelite

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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

3.90-4.053.06-3.19

1 7.18

1.5 Fracture

Not Available

UnevenArthur Thomas, Gemstones (2009) Tough, UnevenArthur Thomas, Gemstones (2009) Tough, Brittle, Uneven

1.6 Cleavage

Not Available

{010} Perfect

1.7 Mohs Hardness

Not Available4-5

2 10

1.8 Chemical Composition

Al 2O 3Ulrich Henn and Claudio C.

Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.

Star Sapphire and Friedelite Chemical Formula

While comparing Star Sapphire and Friedelite 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 Friedelite chemical formula.

Chemical formula of Star Sapphire- Al 2O 3Ulrich Henn and Claudio C.
Chemical formula of Friedelite- Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.

Compare Blue Gemstones

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Star Sapphire Vs Tortoiseshell

Star Sapphire Vs Verdite

Star Sapphire and Friedelite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Star Sapphire and Friedelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Star Sapphire and Friedelite Optical Properties during the identification of gemstone. Specific gravity of Star Sapphire is 3.06-3.19 whereas that of Friedelite is 3.06-3.19.