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Sugilite
Sugilite

Dravite
Dravite



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Sugilite
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Dravite

Sugilite and Dravite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
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-
-
2.69-2.79
Conchoidal
Poor on {0001}
5.5-6.5
KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
 
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-
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3.03-3.18
Uneven, Irregular, Conchoidal
{???} Indistinct
7-7.5
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

Sugilite and Dravite Chemical Formula

While comparing Sugilite and Dravite 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 Dravite chemical formula.

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Sugilite and Dravite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sugilite and Dravite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sugilite Vs Dravite during the identification of gemstone. Specific gravity of Sugilite is whereas that of Dravite is .