Afghanite and Vishnevite Physical Properties

Afghanite

Vishnevite

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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

2.55-2.65Not Available

1 7.18

1.5 Fracture

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

Brittle, Uneven

1.6 Cleavage

Perfect {10 1 0}

Perfect

1.7 Mohs Hardness

5.5-65-6

2 10

1.8 Chemical Composition

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

Not Available

Afghanite and Vishnevite Chemical Formula

While comparing Afghanite and Vishnevite 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 Vishnevite 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)

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Afghanite and Vishnevite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Afghanite and Vishnevite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Afghanite and Vishnevite Optical Properties during the identification of gemstone. Specific gravity of Afghanite is Not Available whereas that of Vishnevite is Not Available.