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Dravite
Dravite

Helenite
Helenite



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Dravite
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Helenite

Dravite and Helenite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
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)
 
-
-
-
-9999
-
Indiscernible
-9999
SiO2

Dravite and Helenite Chemical Formula

While comparing Dravite and Helenite 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 Dravite and Helenite chemical formula.

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Dravite and Helenite Specific Gravity

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