Sugilite and Gahnospinel Physical Properties

Sugilite

Gahnospinel

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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

2.69-2.793.65-4.55

1 7.18

1.5 Fracture

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

ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Poor on {0001}

None, but may exhibit slight parting

1.7 Mohs Hardness

5.5-6.57.5-8

2 10

1.8 Chemical Composition

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

(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)

Sugilite and Gahnospinel Chemical Formula

While comparing Sugilite and Gahnospinel 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 Gahnospinel 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 Gahnospinel- (Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)

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Sugilite and Gahnospinel Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sugilite and Gahnospinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sugilite and Gahnospinel Optical Properties during the identification of gemstone. Specific gravity of Sugilite is 3.65-4.55 whereas that of Gahnospinel is 3.65-4.55.