Star Sapphire and Gedrite Physical Properties

Star Sapphire

Gedrite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

3.90-4.05

None

-9999

Al 2O 3Ulrich Henn and Claudio C.

3.15-3.259

Gedrite Magnesiogedrite , Comments: Dark gray cleavage fragment of magnesiogedrite (gedrite). , Location: Bamble, Telemark, Norway. , Scale: See Image.

5.5-6

(Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)

Star Sapphire and Gedrite Chemical Formula

While comparing Star Sapphire and Gedrite 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 Gedrite chemical formula.

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Star Sapphire and Gedrite Specific Gravity

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