Norbergite and Andalusite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.177
3.05-3.21
Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Uneven, Subconchoidal, Uneven, Subconchoidal, Splintery, UnevenArthur Thomas, Gemstones (2009)
Cleavage
{???} Distinct
Good on {110}, poor on {100}
Chemical Composition
Mg 3(SiO 4)(F,OH) 2Anthony et al , Handbook of Mineralogy (2001)
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Norbergite and Andalusite Chemical Formula
While comparing Norbergite and Andalusite 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 Andalusite chemical formula.
- Chemical formula of Norbergite- Mg 3(SiO 4)(F,OH) 2Anthony et al , Handbook of Mineralogy (2001)
- Chemical formula of Andalusite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Norbergite and Andalusite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Norbergite and Andalusite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Norbergite and Andalusite Optical Properties during the identification of gemstone. Specific gravity of Norbergite is 3.05-3.21 whereas that of Andalusite is 3.05-3.21.