Pyrrhotite and Afghanite Physical Properties

Pyrrhotite

Afghanite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.58-4.652.55-2.65

1 7.18

1.5 Fracture

Uneven

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

1.6 Cleavage

Absent

Perfect {10 1 0}

1.7 Mohs Hardness

3.5-4.55.5-6

2 10

1.8 Chemical Composition

Not Available

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

Pyrrhotite and Afghanite Chemical Formula

While comparing Pyrrhotite and Afghanite 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 Pyrrhotite and Afghanite 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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Pyrrhotite and Afghanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrrhotite and Afghanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrrhotite and Afghanite Optical Properties during the identification of gemstone. Specific gravity of Pyrrhotite is 2.55-2.65 whereas that of Afghanite is 2.55-2.65.