Carnelian and Apophyllite KF Physical Properties

Carnelian

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

2.58-2.64

2.33-2.37

1.5 Fracture

Uneven, Splintery, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)

Uneven, Brittle, Uneven, Brittle, Uneven

1.6 Cleavage

Absent

Perfect on {001}, imperfect on {110}

1.7 Mohs Hardness

6.5-7

4.5-5

1.8 Chemical Composition

SiO₂

(K,Na)Ca4Si8O20(F,OH)•8(H2O)

Carnelian and Apophyllite KF Chemical Formula

While comparing Carnelian 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 Carnelian and Apophyllite KF chemical formula.

Chemical formula of Carnelian- SiO₂
Chemical formula of Apophyllite KF- (K,Na)Ca4Si8O20(F,OH)•8(H2O)

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Carnelian and Apophyllite KF Specific Gravity

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