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Cuprite
Cuprite

Apophyllite KF
Apophyllite KF



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Apophyllite KF

Cuprite and Apophyllite KF Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Brittle
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
5.85-6.15
2.33-2.37
1.5 Fracture
Conchoidal, Metallic, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Uneven, Brittle, Uneven, Brittle, Uneven
1.6 Cleavage
Fair in four directions forming octahedrons
Perfect on {001}, imperfect on {110}
1.7 Mohs Hardness
3.5-4
4.5-5
1.8 Chemical Composition
Cu 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
(K,Na)Ca4Si8O20(F,OH)•8(H2O)

Cuprite and Apophyllite KF Chemical Formula

While comparing Cuprite 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 Cuprite and Apophyllite KF chemical formula.

  • Chemical formula of Cuprite- Cu 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Apophyllite KF- (K,Na)Ca4Si8O20(F,OH)•8(H2O)

Cuprite and Apophyllite KF Specific Gravity

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