Zoisite and Antigorite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.20-3.50
2.58-2.80
Fracture
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Even
Conchoidal, Brittle, Metallic, Conchoidal, Handbook of mineralogy (2001)
Cleavage
Perfect {010} imperfect {100}
{001} Good
Chemical Composition
Ca2Al3(SiO4)3(OH)
(Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)
Zoisite and Antigorite Chemical Formula
While comparing Zoisite 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 Zoisite and Antigorite chemical formula.
- Chemical formula of Zoisite- Ca2Al3(SiO4)3(OH)
- Chemical formula of Antigorite- (Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)
Zoisite and Antigorite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Zoisite and Antigorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Zoisite and Antigorite Optical Properties during the identification of gemstone. Specific gravity of Zoisite is 2.58-2.80 whereas that of Antigorite is 2.58-2.80.