Norbergite and Spinel Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
none
Durability
Not Available
Not Available
Specific Gravity
3.177
3.64-3.66
Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
{???} Distinct
None, but may exhibit slight parting
Chemical Composition
Mg 3(SiO 4)(F,OH) 2Anthony et al , Handbook of Mineralogy (2001)
MgAl2O4
Norbergite and Spinel Chemical Formula
While comparing Norbergite and Spinel 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 Spinel chemical formula.
- Chemical formula of Norbergite- Mg 3(SiO 4)(F,OH) 2Anthony et al , Handbook of Mineralogy (2001)
- Chemical formula of Spinel- MgAl2O4
Norbergite and Spinel Specific Gravity
Another important criteria for qualitative analysis of gemstones is Norbergite and Spinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Norbergite and Spinel Optical Properties during the identification of gemstone. Specific gravity of Norbergite is 3.64-3.66 whereas that of Spinel is 3.64-3.66.