Apophyllite and Riebeckite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.30-2.50
  
3.28-3.44
  
Fracture
Uneven, UnevenArthur Thomas, Gemstones (2009)
  
Uneven, Splintery, Brittle
  
Cleavage
Perfect on (001)
  
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
  
Mohs Hardness
4.5-5
  
5.0-6.0
  
Chemical Composition
KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
  
Not Available
  
Apophyllite and Riebeckite Chemical Formula
While comparing Apophyllite and Riebeckite 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 and Riebeckite chemical formula.
- Chemical formula of Apophyllite- KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
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Apophyllite and Riebeckite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Apophyllite and Riebeckite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apophyllite and Riebeckite Optical Properties during the identification of gemstone. Specific gravity of Apophyllite is 3.28-3.44 whereas that of Riebeckite is 3.28-3.44.