Anthophyllite and Andalusite Physical Properties
Specific Gravity
2.9-3.5
3.05-3.21
Fracture
Conchoidal
Uneven, Subconchoidal, Splintery
Cleavage
{110} Perfect, {???} Distinct, {???} Distinct
Good on {110}, poor on {100}
Chemical Composition
(Mg,Fe2+ ) 2(Mg,Fe2+ ) 5Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Anthophyllite and Andalusite Chemical Formula
While comparing Anthophyllite 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 Anthophyllite and Andalusite 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 Andalusite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Anthophyllite and Andalusite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Anthophyllite and Andalusite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Anthophyllite and Andalusite Optical Properties during the identification of gemstone. Specific gravity of Anthophyllite is 3.05-3.21 whereas that of Andalusite is 3.05-3.21.