Gahnospinel and Sugilite Physical Properties

Gahnospinel

Sugilite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

3.65-4.552.69-2.79

1 7.18

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Fracture

Conchoidal

Cleavage

None, but may exhibit slight parting

Poor on {0001}

Mohs Hardness

7.5-85.5-6.5

2 10

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Chemical Composition

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

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

Gahnospinel and Sugilite Chemical Formula

While comparing Gahnospinel and Sugilite 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 Gahnospinel and Sugilite chemical formula.

Chemical formula of Gahnospinel- (Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)
Chemical formula of Sugilite- KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Blue Gemstones

Gahnospinel Vs Jeremejevite

Gahnospinel Vs Lazurite

Gahnospinel Vs Linarite

Gahnospinel and Sugilite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gahnospinel and Sugilite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gahnospinel and Sugilite Optical Properties during the identification of gemstone. Specific gravity of Gahnospinel is 2.69-2.79 whereas that of Sugilite is 2.69-2.79.