Sugilite and Star Ruby Physical Properties

Sugilite

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

2.69-2.793.95-4.10

1 7.18

1.5 Fracture

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

Uneven, Uneven, Gems, Sixth Edition (2006)

1.6 Cleavage

Poor on {0001}

Not Available

1.7 Mohs Hardness

5.5-6.5Not Available

2 10

1.8 Chemical Composition

KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Sugilite and Star Ruby Chemical Formula

While comparing Sugilite 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 Sugilite and Star Ruby chemical formula.

Chemical formula of Sugilite- KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Star Ruby- Al 2O 3Michael OâDonoghue , Gems, Sixth Edition (2006)

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Sugilite and Star Ruby Specific Gravity

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