Whitlockite and Anorthite Physical Properties

Whitlockite

Anorthite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.122.77

1 7.18

1.5 Fracture

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle

Uneven, Uneven, Gems, Sixth Edition (2006)

1.6 Cleavage

None

Perfect [001] good [010] poor [110]

1.7 Mohs Hardness

Not Available6-6.5

2 10

1.8 Chemical Composition

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

CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Whitlockite and Anorthite Chemical Formula

While comparing Whitlockite and Anorthite 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 Anorthite chemical formula.

Chemical formula of Whitlockite- Ca 9(Mg,Fe2+ )(PO 4) 6(PO 3OH)Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Anorthite- CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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Whitlockite and Anorthite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Whitlockite and Anorthite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Whitlockite and Anorthite Optical Properties during the identification of gemstone. Specific gravity of Whitlockite is 2.77 whereas that of Anorthite is 2.77.