Afghanite and Chlorite group Physical Properties

Afghanite

Chlorite group

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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

2.6-3.3

1.5 Fracture

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

Lamellar

1.6 Cleavage

Perfect {10 1 0}

Perfect 001

1.7 Mohs Hardness

5.5-6

2-2.5

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 Chlorite group Chemical Formula

While comparing Afghanite and Chlorite group 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 Chlorite group 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 Chlorite group Specific Gravity

Another important criteria for qualitative analysis of gemstones is Afghanite and Chlorite group Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Afghanite and Chlorite group Optical Properties during the identification of gemstone. Specific gravity of Afghanite is 2.6-3.3 whereas that of Chlorite group is 2.6-3.3.