Dravite and Imperial Topaz Physical Properties

Dravite

Imperial Topaz

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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

3.03-3.183.49-3.57

1 7.18

1.5 Fracture

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

Uneven

1.6 Cleavage

{???} Indistinct

Not Available

1.7 Mohs Hardness

7-7.58

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)

Not Available

Dravite and Imperial Topaz Chemical Formula

While comparing Dravite and Imperial Topaz 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 Imperial Topaz 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)

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Dravite and Imperial Topaz Specific Gravity

Another important criteria for qualitative analysis of gemstones is Dravite and Imperial Topaz Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dravite and Imperial Topaz Optical Properties during the identification of gemstone. Specific gravity of Dravite is 3.49-3.57 whereas that of Imperial Topaz is 3.49-3.57.