Amethyst and Pyrophyllite Physical Properties
Tenacity
Not Available
Not Available
Solubility
insoluble in common solvents
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.65
2.65-2.90
Fracture
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
Gemstones (2009), Flexible Flexible fragments.
Cleavage
Indiscernible
{001} Perfect
Mohs Hardness
7
Not Available
Chemical Composition
SiO2
Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Amethyst and Pyrophyllite Chemical Formula
While comparing Amethyst 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 Amethyst and Pyrophyllite chemical formula.
- Chemical formula of Amethyst- SiO2
- Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Amethyst and Pyrophyllite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Amethyst and Pyrophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Amethyst and Pyrophyllite Optical Properties during the identification of gemstone. Specific gravity of Amethyst is 2.65-2.90 whereas that of Pyrophyllite is 2.65-2.90.