Dravite and Smoky Quartz Physical Properties

Dravite

Smoky Quartz

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.03-3.182.65

1 7.18

1.5 Fracture

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

Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

{???} Indistinct

{0110} Indistinct

1.7 Mohs Hardness

7-7.57

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)

SiO₂

Dravite and Smoky Quartz Chemical Formula

While comparing Dravite and Smoky Quartz 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 Smoky Quartz 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 Smoky Quartz- SiO₂

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Dravite and Smoky Quartz Specific Gravity

Another important criteria for qualitative analysis of gemstones is Dravite and Smoky Quartz Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dravite and Smoky Quartz Optical Properties during the identification of gemstone. Specific gravity of Dravite is 2.65 whereas that of Smoky Quartz is 2.65.