Norbergite and Emerald Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Hard
Specific Gravity
3.177
2.67-2.78
Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
Cleavage
{???} Distinct
Imperfect on the [0001]
Mohs Hardness
6-6.5
7.5-8
Chemical Composition
Mg 3(SiO 4)(F,OH) 2Anthony et al , Handbook of Mineralogy (2001)
Be3Al2SiO6
Norbergite and Emerald Chemical Formula
While comparing Norbergite and Emerald 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 Emerald chemical formula.
- Chemical formula of Norbergite- Mg 3(SiO 4)(F,OH) 2Anthony et al , Handbook of Mineralogy (2001)
- Chemical formula of Emerald- Be3Al2SiO6
Norbergite and Emerald Specific Gravity
Another important criteria for qualitative analysis of gemstones is Norbergite and Emerald Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Norbergite and Emerald Optical Properties during the identification of gemstone. Specific gravity of Norbergite is 2.67-2.78 whereas that of Emerald is 2.67-2.78.