Chrome Pyrope and Star Sapphire Physical Properties

Chrome Pyrope

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

3.62-3.803.90-4.05

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

Not Available

1.6 Cleavage

Not Available

1.7 Mohs Hardness

7-7.5Not Available

2 10

1.8 Chemical Composition

Mg 3(Al,Cr) 2(SiO 4) 3Gemdat.org , Management Team (2012)

Al 2O 3Ulrich Henn and Claudio C.

Chrome Pyrope and Star Sapphire Chemical Formula

While comparing Chrome Pyrope 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 Chrome Pyrope and Star Sapphire chemical formula.

Chemical formula of Chrome Pyrope- Mg 3(Al,Cr) 2(SiO 4) 3Gemdat.org , Management Team (2012)
Chemical formula of Star Sapphire- Al 2O 3Ulrich Henn and Claudio C.

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Chrome Pyrope and Star Sapphire Specific Gravity

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