Hibschite and Star Ruby Physical Properties

Hibschite

Star Ruby

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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

3.05-3.083.95-4.10

1 7.18

1.5 Fracture

Uneven, Uneven, Irregular, Management Team (2012), Conchoidal, Brittle

Uneven, Uneven, Gems, Sixth Edition (2006)

1.6 Cleavage

None

Not Available

1.7 Mohs Hardness

6.5Not Available

2 10

1.8 Chemical Composition

Ca 3Al 2(SiO 4) 3-x(OH) 4x (x=0.2 to 1.5)Anthony et al , Handbook of mineralogy (2001)

Al 2O 3Michael OâDonoghue , Gems, Sixth Edition (2006)

Hibschite and Star Ruby Chemical Formula

While comparing Hibschite and Star Ruby 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 Hibschite and Star Ruby chemical formula.

Chemical formula of Hibschite- Ca 3Al 2(SiO 4) 3-x(OH) 4x (x=0.2 to 1.5)Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Star Ruby- Al 2O 3Michael OâDonoghue , Gems, Sixth Edition (2006)

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Hibschite and Star Ruby Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hibschite and Star Ruby Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hibschite and Star Ruby Optical Properties during the identification of gemstone. Specific gravity of Hibschite is 3.95-4.10 whereas that of Star Ruby is 3.95-4.10.