Andalusite and Emerald Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Hard
Specific Gravity
3.05-3.21
2.67-2.78
Fracture
Uneven, Subconchoidal, Uneven, Subconchoidal, Splintery, UnevenArthur Thomas, Gemstones (2009)
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
Cleavage
Good on {110}, poor on {100}
Imperfect on the [0001]
Chemical Composition
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Be3Al2SiO6
Andalusite and Emerald Chemical Formula
While comparing Andalusite and Emerald 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 Emerald chemical formula.
- Chemical formula of Andalusite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
- Chemical formula of Emerald- Be3Al2SiO6
Andalusite and Emerald Specific Gravity
Another important criteria for qualitative analysis of gemstones is Andalusite and Emerald Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Andalusite and Emerald Optical Properties during the identification of gemstone. Specific gravity of Andalusite is 2.67-2.78 whereas that of Emerald is 2.67-2.78.