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Apophyllite KF
Apophyllite KF

Sardonyx
Sardonyx



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Apophyllite KF
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Sardonyx

Apophyllite KF and Sardonyx Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.33-2.372.55-2.70
Amber
1 7.18
1.5 Fracture
Uneven, Brittle, Uneven, Brittle, Uneven
Not Available
1.6 Cleavage
Perfect on {001}, imperfect on {110}
Not Available
1.7 Mohs Hardness
4.5-56.5-7
Amber
2 10
1.8 Chemical Composition
(K,Na)Ca4Si8O20(F,OH)•8(H2O)
SiO 2Ulrich Henn and Claudio C.

Apophyllite KF and Sardonyx Chemical Formula

While comparing Apophyllite KF and Sardonyx 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 Sardonyx chemical formula.

  • Chemical formula of Apophyllite KF- (K,Na)Ca4Si8O20(F,OH)•8(H2O)
  • Chemical formula of Sardonyx- SiO 2Ulrich Henn and Claudio C.

Apophyllite KF and Sardonyx Specific Gravity

Another important criteria for qualitative analysis of gemstones is Apophyllite KF and Sardonyx Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apophyllite KF and Sardonyx Optical Properties during the identification of gemstone. Specific gravity of Apophyllite KF is 2.55-2.70 whereas that of Sardonyx is 2.55-2.70.