Dravite and Sanidine Physical Properties

Dravite

Sanidine

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.03-3.182.54-2.61

1 7.18

1.5 Fracture

Uneven, Uneven, Irregular, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle

Uneven, Uneven, Gems, Sixth Edition (2006)

1.6 Cleavage

{???} Indistinct

{001} Perfect, {010} Good

1.7 Mohs Hardness

7-7.56

2 10

1.8 Chemical Composition

Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Dravite and Sanidine Chemical Formula

While comparing Dravite and Sanidine 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 Sanidine chemical formula.

Chemical formula of Dravite- Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Chemical formula of Sanidine- KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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Dravite and Sanidine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Dravite and Sanidine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dravite and Sanidine Optical Properties during the identification of gemstone. Specific gravity of Dravite is 2.54-2.61 whereas that of Sanidine is 2.54-2.61.