Spinel and Orthoclase Physical Properties
Tenacity
Not Available
Not Available
Solubility
none
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.64-3.66
2.54-2.61
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
Gems, Uneven
Cleavage
None, but may exhibit slight parting
Has perfect cleavage on {001} and good cleavage on {010}. Cleavages intersect at 90°.
Chemical Composition
MgAl2O4
KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Spinel and Orthoclase Chemical Formula
While comparing Spinel and Orthoclase 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 Orthoclase chemical formula.
- Chemical formula of Spinel- MgAl2O4
- Chemical formula of Orthoclase- KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Spinel and Orthoclase Specific Gravity
Another important criteria for qualitative analysis of gemstones is Spinel and Orthoclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spinel and Orthoclase Optical Properties during the identification of gemstone. Specific gravity of Spinel is 2.54-2.61 whereas that of Orthoclase is 2.54-2.61.