Hardystonite and Angelite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.396-3.443
  
Not Available
  
Fracture
Brittle, Metallic
  
Not Available
  
Cleavage
[001] good, [100] and [110] fair
  
Not Available
  
Mohs Hardness
3-4
  
3.5
  
Chemical Composition
Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)
  
Not Available
  
Hardystonite and Angelite Chemical Formula
While comparing Hardystonite and Angelite 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 Hardystonite and Angelite chemical formula.
- Chemical formula of Hardystonite- Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)
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Hardystonite and Angelite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hardystonite and Angelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hardystonite and Angelite Optical Properties during the identification of gemstone. Specific gravity of Hardystonite is Not Available whereas that of Angelite is Not Available.