Friedelite and Star Sapphire Physical Properties

Friedelite

Star Sapphire

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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

3.06-3.193.90-4.05

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

{010} Perfect

Not Available

1.7 Mohs Hardness

4-5Not Available

2 10

1.8 Chemical Composition

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

Al 2O 3Ulrich Henn and Claudio C.

Friedelite and Star Sapphire Chemical Formula

While comparing Friedelite 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 Friedelite and Star Sapphire chemical formula.

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

Compare Red Gemstones

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Friedelite Vs Imperial Topaz

Friedelite Vs Hibonite

Friedelite and Star Sapphire Specific Gravity

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