Afghanite and Muscovite Physical Properties

Afghanite

Muscovite

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1 Physical Properties

1.1 Tenacity

Not Available

Elastic

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.55-2.652.78-2.88

1 7.18

1.5 Fracture

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

Micaceous, Brittle

1.6 Cleavage

Perfect {10 1 0}

Perfect on the {001}

1.7 Mohs Hardness

5.5-62-3

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)

KAl 2AlSi 3O 10(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references

Afghanite and Muscovite Chemical Formula

While comparing Afghanite and Muscovite 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 Muscovite 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 Muscovite- KAl 2AlSi 3O 10(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references

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Afghanite and Muscovite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Afghanite and Muscovite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Afghanite and Muscovite Optical Properties during the identification of gemstone. Specific gravity of Afghanite is 2.78-2.88 whereas that of Muscovite is 2.78-2.88.