Apophyllite KF and Pyrite Marcasite Physical Properties

Apophyllite KF

Pyrite Marcasite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.33-2.374.9-5.2

1 7.18

1.5 Fracture

Uneven, Brittle, Uneven, Brittle, Uneven

Not Available

1.6 Cleavage

Perfect on {001}, imperfect on {110}

None

1.7 Mohs Hardness

4.5-56-6.5

2 10

1.8 Chemical Composition

(K,Na)Ca4Si8O20(F,OH)•8(H2O)

Not Available

Apophyllite KF and Pyrite Marcasite Chemical Formula

While comparing Apophyllite KF and Pyrite Marcasite 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 KF and Pyrite Marcasite chemical formula.

Chemical formula of Apophyllite KF- (K,Na)Ca4Si8O20(F,OH)•8(H2O)

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Apophyllite KF and Pyrite Marcasite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Apophyllite KF and Pyrite Marcasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apophyllite KF and Pyrite Marcasite Optical Properties during the identification of gemstone. Specific gravity of Apophyllite KF is 4.9-5.2 whereas that of Pyrite Marcasite is 4.9-5.2.