Norbergite and Andesine Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.177
  
2.65-2.69
  
Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
  
Uneven, Uneven, Conchoidal, Uneven, Gems, Sixth Edition (2006)
  
Cleavage
{???} Distinct
  
Perfect on {001}, good on {010}
  
Mohs Hardness
6-6.5
  
6-6.5
  
Chemical Composition
Mg 3(SiO 4)(F,OH) 2Anthony et al , Handbook of Mineralogy (2001)
  
(Na,Ca)Al1-2Si3-2O8
  
Norbergite and Andesine Chemical Formula
While comparing Norbergite and Andesine 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 Norbergite and Andesine chemical formula.
- Chemical formula of Norbergite- Mg 3(SiO 4)(F,OH) 2Anthony et al , Handbook of Mineralogy (2001)
- Chemical formula of Andesine- (Na,Ca)Al1-2Si3-2O8
Norbergite and Andesine Specific Gravity
Another important criteria for qualitative analysis of gemstones is Norbergite and Andesine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Norbergite and Andesine Optical Properties during the identification of gemstone. Specific gravity of Norbergite is 2.65-2.69 whereas that of Andesine is 2.65-2.69.