Realgar and Andalusite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.56
3.05-3.21
Fracture
(e.g. graphite).
Uneven, Subconchoidal, Uneven, Subconchoidal, Splintery, UnevenArthur Thomas, Gemstones (2009)
Cleavage
{010} Good
Good on {110}, poor on {100}
Mohs Hardness
Not Available
7.5
Chemical Composition
AsSMichael OâDonoghue , Gems, Sixth Edition (2006)
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Realgar and Andalusite Chemical Formula
While comparing Realgar 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 Realgar and Andalusite chemical formula.
- Chemical formula of Realgar- AsSMichael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Andalusite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Realgar and Andalusite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Realgar and Andalusite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Realgar and Andalusite Optical Properties during the identification of gemstone. Specific gravity of Realgar is 3.05-3.21 whereas that of Andalusite is 3.05-3.21.