Riesling Beryl and Dravite Physical Properties

Riesling Beryl

Dravite

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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

2.66-2.863.03-3.18

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

Not Available

{???} Indistinct

1.7 Mohs Hardness

7.5-87-7.5

2 10

1.8 Chemical Composition

Al 2Be 3Si 6O 18Martin H.

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

Riesling Beryl and Dravite Chemical Formula

While comparing Riesling Beryl 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 Riesling Beryl and Dravite chemical formula.

Chemical formula of Riesling Beryl- Al 2Be 3Si 6O 18Martin H.
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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Riesling Beryl and Dravite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Riesling Beryl and Dravite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Riesling Beryl and Dravite Optical Properties during the identification of gemstone. Specific gravity of Riesling Beryl is 3.03-3.18 whereas that of Dravite is 3.03-3.18.