Dravite and Aquamarine Physical Properties

Dravite

Aquamarine

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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

3.03-3.182.66-2.80

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

{???} Indistinct

3,1 basal

1.7 Mohs Hardness

7-7.57.5-8

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)

Be₃Al₂SiO₆

Dravite and Aquamarine Chemical Formula

While comparing Dravite and Aquamarine 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 Aquamarine 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 Aquamarine- Be₃Al₂SiO₆

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Dravite and Aquamarine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Dravite and Aquamarine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dravite and Aquamarine Optical Properties during the identification of gemstone. Specific gravity of Dravite is 2.66-2.80 whereas that of Aquamarine is 2.66-2.80.