Apophyllite and Hematite Physical Properties

Apophyllite

Hematite

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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

2.30-2.505.00-5.30

1 7.18

1.5 Fracture

Uneven, UnevenArthur Thomas, Gemstones (2009)

Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle

1.6 Cleavage

Perfect on (001)

None, may show partings on {0001} and {10 1 1}

1.7 Mohs Hardness

4.5-56

2 10

1.8 Chemical Composition

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

Fe 2O 3Arthur Thomas , Gemstones (2009)

Apophyllite and Hematite Chemical Formula

While comparing Apophyllite and Hematite 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 Apophyllite and Hematite chemical formula.

Chemical formula of Apophyllite- KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
Chemical formula of Hematite- Fe 2O 3Arthur Thomas , Gemstones (2009)

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Apophyllite and Hematite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Apophyllite and Hematite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apophyllite and Hematite Optical Properties during the identification of gemstone. Specific gravity of Apophyllite is 5.00-5.30 whereas that of Hematite is 5.00-5.30.