Chrysoprase and Apophyllite KF Physical Properties

Chrysoprase

Apophyllite KF

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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

2.58-2.642.33-2.37

1 7.18

1.5 Fracture

Gems, Sixth Edition (2006)

Uneven, Brittle, Uneven, Brittle, Uneven

1.6 Cleavage

None

Perfect on {001}, imperfect on {110}

1.7 Mohs Hardness

6.5-74.5-5

2 10

1.8 Chemical Composition

SiO₂ (with a high level of nickel impurities )

(K,Na)Ca4Si8O20(F,OH)•8(H2O)

Chrysoprase and Apophyllite KF Chemical Formula

While comparing Chrysoprase 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 Chrysoprase and Apophyllite KF chemical formula.

Chemical formula of Chrysoprase- SiO₂ (with a high level of nickel impurities )
Chemical formula of Apophyllite KF- (K,Na)Ca4Si8O20(F,OH)•8(H2O)

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Chrysoprase and Apophyllite KF Specific Gravity

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