Anthophyllite and Anhydrite Physical Properties
Specific Gravity
2.9-3.5
2.90-2.98
Fracture
Conchoidal
Conchoidal
Cleavage
{110} Perfect, {???} Distinct, {???} Distinct
Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.
Chemical Composition
(Mg,Fe2+ ) 2(Mg,Fe2+ ) 5Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Anthophyllite and Anhydrite Chemical Formula
While comparing Anthophyllite and Anhydrite 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 Anthophyllite and Anhydrite chemical formula.
- Chemical formula of Anthophyllite- (Mg,Fe2+ ) 2(Mg,Fe2+ ) 5Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
- Chemical formula of Anhydrite- CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Anthophyllite and Anhydrite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Anthophyllite and Anhydrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Anthophyllite and Anhydrite Optical Properties during the identification of gemstone. Specific gravity of Anthophyllite is 2.90-2.98 whereas that of Anhydrite is 2.90-2.98.