Sugilite and Axinite Physical Properties

Sugilite

Axinite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

2.69-2.793.26-3.36

1 7.18

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Fracture

Conchoidal

Cleavage

Poor on {0001}

Good on {100}

Mohs Hardness

5.5-6.56.5-7

2 10

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Chemical Composition

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

(Ca,Fe,Mn,Mg) 3Al 2BSi 4O 15(OH)Walter Schumann , Gemstones of the world (2001) More from other references

Sugilite and Axinite Chemical Formula

While comparing Sugilite and Axinite 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 Axinite 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 Axinite- (Ca,Fe,Mn,Mg) 3Al 2BSi 4O 15(OH)Walter Schumann , Gemstones of the world (2001) More from other references

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Sugilite and Axinite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sugilite and Axinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sugilite and Axinite Optical Properties during the identification of gemstone. Specific gravity of Sugilite is 3.26-3.36 whereas that of Axinite is 3.26-3.36.