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Sapphire
Sapphire

Apophyllite KF
Apophyllite KF



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Sapphire
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Apophyllite KF

Sapphire and Apophyllite KF Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Brittle
1.2 Solubility
insoluble
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.95-4.03
2.33-2.37
1.5 Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)
Uneven, Brittle, Uneven, Brittle, Uneven
1.6 Cleavage
None, but may exhibit parting
Perfect on {001}, imperfect on {110}
1.7 Mohs Hardness
9
4.5-5
1.8 Chemical Composition
Al 2 O 3
(K,Na)Ca4Si8O20(F,OH)•8(H2O)

Sapphire and Apophyllite KF Chemical Formula

While comparing Sapphire 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 Sapphire and Apophyllite KF chemical formula.

  • Chemical formula of Sapphire- Al 2 O 3
  • Chemical formula of Apophyllite KF- (K,Na)Ca4Si8O20(F,OH)•8(H2O)

Sapphire and Apophyllite KF Specific Gravity

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