Afghanite and Riesling Beryl Physical Properties

Afghanite

Riesling Beryl

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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

2.55-2.65

2.66-2.86

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle, Conchoidal, Brittle

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

1.6 Cleavage

Perfect {10 1 0}

Not Available

1.7 Mohs Hardness

5.5-6

7.5-8

1.8 Chemical Composition

(Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)

Al 2Be 3Si 6O 18Martin H.

Afghanite and Riesling Beryl Chemical Formula

While comparing Afghanite and Riesling Beryl 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 Afghanite and Riesling Beryl chemical formula.

Chemical formula of Afghanite- (Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)
Chemical formula of Riesling Beryl- Al 2Be 3Si 6O 18Martin H.

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Afghanite and Riesling Beryl Specific Gravity

Another important criteria for qualitative analysis of gemstones is Afghanite and Riesling Beryl Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Afghanite and Riesling Beryl Optical Properties during the identification of gemstone. Specific gravity of Afghanite is 2.66-2.86 whereas that of Riesling Beryl is 2.66-2.86.