Spinel and Pyrophyllite Physical Properties
Tenacity
Not Available
Not Available
Solubility
none
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.64-3.66
2.65-2.90
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
Gemstones (2009), Flexible Flexible fragments.
Cleavage
None, but may exhibit slight parting
{001} Perfect
Mohs Hardness
8
Not Available
Chemical Composition
MgAl2O4
Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Spinel and Pyrophyllite Chemical Formula
While comparing Spinel and Pyrophyllite 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 Pyrophyllite chemical formula.
- Chemical formula of Spinel- MgAl2O4
- Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Spinel and Pyrophyllite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Spinel and Pyrophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spinel and Pyrophyllite Optical Properties during the identification of gemstone. Specific gravity of Spinel is 2.65-2.90 whereas that of Pyrophyllite is 2.65-2.90.