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