Afghanite and Tantalite Physical Properties

Afghanite

Tantalite

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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

2.55-2.655.2

1 7.18

1.5 Fracture

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

Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Perfect {10 1 0}

Good in one direction

1.7 Mohs Hardness

5.5-66-6.5

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)

(Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references

Afghanite and Tantalite Chemical Formula

While comparing Afghanite and Tantalite 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 Tantalite 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 Tantalite- (Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references

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Afghanite and Tantalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Afghanite and Tantalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Afghanite and Tantalite Optical Properties during the identification of gemstone. Specific gravity of Afghanite is 5.2 whereas that of Tantalite is 5.2.