Hematite and Apophyllite KF Physical Properties

Hematite

Apophyllite KF

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

5.00-5.302.33-2.37

1 7.18

1.5 Fracture

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

Uneven, Brittle, Uneven, Brittle, Uneven

1.6 Cleavage

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

Perfect on {001}, imperfect on {110}

1.7 Mohs Hardness

64.5-5

2 10

1.8 Chemical Composition

Fe 2O 3Arthur Thomas , Gemstones (2009)

(K,Na)Ca4Si8O20(F,OH)•8(H2O)

Hematite and Apophyllite KF Chemical Formula

While comparing Hematite and Apophyllite KF 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 Hematite and Apophyllite KF chemical formula.

Chemical formula of Hematite- Fe 2O 3Arthur Thomas , Gemstones (2009)
Chemical formula of Apophyllite KF- (K,Na)Ca4Si8O20(F,OH)•8(H2O)

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Hematite and Apophyllite KF Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hematite and Apophyllite KF Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hematite and Apophyllite KF Optical Properties during the identification of gemstone. Specific gravity of Hematite is 2.33-2.37 whereas that of Apophyllite KF is 2.33-2.37.