Norbergite and Thulite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.177
  
3.1
  
Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
  
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
{???} Distinct
  
Perfect {010} imperfect {100}
  
Mohs Hardness
6-6.5
  
6-7
  
Chemical Composition
Mg 3(SiO 4)(F,OH) 2Anthony et al , Handbook of Mineralogy (2001)
  
Ca2Al3(SiO4)3(OH)
  
Norbergite and Thulite Chemical Formula
While comparing Norbergite and Thulite 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 Thulite chemical formula.
- Chemical formula of Norbergite- Mg 3(SiO 4)(F,OH) 2Anthony et al , Handbook of Mineralogy (2001)
- Chemical formula of Thulite- Ca2Al3(SiO4)3(OH)
Norbergite and Thulite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Norbergite and Thulite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Norbergite and Thulite Optical Properties during the identification of gemstone. Specific gravity of Norbergite is 3.1 whereas that of Thulite is 3.1.