Stichtite and Star Sapphire Physical Properties

Stichtite

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

2.11-2.203.90-4.05

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

Perfect on {0001}

Not Available

1.7 Mohs Hardness

Not AvailableNot Available

2 10

1.8 Chemical Composition

Mg 6Cr 2(CO 3)(OH) 16 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Al 2O 3Ulrich Henn and Claudio C.

Stichtite and Star Sapphire Chemical Formula

While comparing Stichtite 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 Stichtite and Star Sapphire chemical formula.

Chemical formula of Stichtite- Mg 6Cr 2(CO 3)(OH) 16 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Star Sapphire- Al 2O 3Ulrich Henn and Claudio C.

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Stichtite and Star Sapphire Specific Gravity

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