Moonstone and Pyrophyllite Physical Properties
Specific Gravity
2.56-2.60
2.65-2.90
Fracture
Uneven, ConchoidalWalter Schumann
-
Cleavage
2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal
{001} Perfect
Mohs Hardness
6-6.5
-9999
Chemical Composition
Plagioclase Feldspar s: (Na,Ca)Al1-2Si3-2O8 Orthoclase Feldspar : KAlSi3O8
Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Moonstone and Pyrophyllite Chemical Formula
While comparing Moonstone 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 Moonstone and Pyrophyllite chemical formula.
- Chemical formula of Moonstone- Plagioclase Feldspar s: (Na,Ca)Al1-2Si3-2O8 Orthoclase Feldspar : KAlSi3O8
- Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Moonstone and Pyrophyllite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Moonstone and Pyrophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Moonstone and Pyrophyllite Optical Properties during the identification of gemstone. Specific gravity of Moonstone is 2.65-2.90 whereas that of Pyrophyllite is 2.65-2.90.