Whitlockite and Afghanite Physical Properties

Whitlockite

Afghanite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

3.12

Uneven

None

-9999

Ca 9(Mg,Fe2+ )(PO 4) 6(PO 3OH)Anthony et al , Handbook of mineralogy (2001)

2.55-2.65

Conchoidal

Perfect {10 1 0}

5.5-6

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

Whitlockite and Afghanite Chemical Formula

While comparing Whitlockite 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 Whitlockite and Afghanite chemical formula.

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Whitlockite and Afghanite Specific Gravity

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