Spinel and Diaspore Physical Properties
Tenacity
Not Available
Very brittle
Solubility
none
insoluble
Durability
Not Available
Not Available
Specific Gravity
3.64-3.66
3.30-3.40
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
Conchoidal, Brittle, Conchoidal
Cleavage
None, but may exhibit slight parting
{010} perfect, {110} distinct, {100} in traces
Chemical Composition
MgAl2O4
AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Spinel and Diaspore Chemical Formula
While comparing Spinel and Diaspore 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 Spinel and Diaspore chemical formula.
- Chemical formula of Spinel- MgAl2O4
- Chemical formula of Diaspore- AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Spinel and Diaspore Specific Gravity
Another important criteria for qualitative analysis of gemstones is Spinel and Diaspore Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spinel and Diaspore Optical Properties during the identification of gemstone. Specific gravity of Spinel is 3.30-3.40 whereas that of Diaspore is 3.30-3.40.