Norbergite and Riebeckite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.177
3.28-3.44
Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Uneven, Splintery, Brittle
Cleavage
{???} Distinct
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
Mohs Hardness
6-6.5
5.0-6.0
Chemical Composition
Mg 3(SiO 4)(F,OH) 2Anthony et al , Handbook of Mineralogy (2001)
Not Available
Norbergite and Riebeckite Chemical Formula
While comparing Norbergite 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 Norbergite and Riebeckite chemical formula.
- Chemical formula of Norbergite- Mg 3(SiO 4)(F,OH) 2Anthony et al , Handbook of Mineralogy (2001)
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Norbergite and Riebeckite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Norbergite and Riebeckite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Norbergite and Riebeckite Optical Properties during the identification of gemstone. Specific gravity of Norbergite is 3.28-3.44 whereas that of Riebeckite is 3.28-3.44.