Anorthite and Antigorite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.77
2.58-2.80
Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)
Conchoidal, Brittle, Metallic, Conchoidal, Handbook of mineralogy (2001)
Cleavage
Perfect [001] good [010] poor [110]
{001} Good
Mohs Hardness
6-6.5
5-5.5
Chemical Composition
CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
(Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)
Anorthite and Antigorite Chemical Formula
While comparing Anorthite and Antigorite 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 Anorthite and Antigorite chemical formula.
- Chemical formula of Anorthite- CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Antigorite- (Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)
Anorthite and Antigorite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Anorthite and Antigorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Anorthite and Antigorite Optical Properties during the identification of gemstone. Specific gravity of Anorthite is 2.58-2.80 whereas that of Antigorite is 2.58-2.80.