Andalusite and Hemimorphite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Soluble
Durability
Not Available
Not Available
Specific Gravity
3.05-3.21
3.30-3.50
Fracture
Uneven, Subconchoidal, Uneven, Subconchoidal, Splintery, UnevenArthur Thomas, Gemstones (2009)
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
Cleavage
Good on {110}, poor on {100}
Perfect on {110}, poor on {101}, {001} rare
Chemical Composition
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Zn 4Si 2O 7(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Andalusite and Hemimorphite Chemical Formula
While comparing Andalusite and Hemimorphite 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 Andalusite and Hemimorphite chemical formula.
- Chemical formula of Andalusite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
- Chemical formula of Hemimorphite- Zn 4Si 2O 7(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Andalusite and Hemimorphite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Andalusite and Hemimorphite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Andalusite and Hemimorphite Optical Properties during the identification of gemstone. Specific gravity of Andalusite is 3.30-3.50 whereas that of Hemimorphite is 3.30-3.50.