Gahnospinel and Dravite Physical Properties

Gahnospinel

Dravite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

3.65-4.55

Conchoidal

None, but may exhibit slight parting

7.5-8

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

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)

Gahnospinel and Dravite Chemical Formula

While comparing Gahnospinel 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 Gahnospinel and Dravite chemical formula.

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Gahnospinel and Dravite Specific Gravity

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