Whitlockite and Apophyllite Physical Properties

Whitlockite

Apophyllite

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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

3.122.30-2.50

1 7.18

1.5 Fracture

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

Uneven, UnevenArthur Thomas, Gemstones (2009)

1.6 Cleavage

None

Perfect on (001)

1.7 Mohs Hardness

Not Available4.5-5

2 10

1.8 Chemical Composition

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

KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.

Whitlockite and Apophyllite Chemical Formula

While comparing Whitlockite and Apophyllite 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 Apophyllite 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 Apophyllite- KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.

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Whitlockite and Apophyllite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Whitlockite and Apophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Whitlockite and Apophyllite Optical Properties during the identification of gemstone. Specific gravity of Whitlockite is 2.30-2.50 whereas that of Apophyllite is 2.30-2.50.