Chalcedony and Pyrophyllite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Soluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.55-2.70
2.65-2.90
Fracture
Uneven, Splintery, Conchoidal, Uneven, Splintery, Conchoidal, UnevenWalter Schumann
Gemstones (2009), Flexible Flexible fragments.
Cleavage
Absent
{001} Perfect
Mohs Hardness
6.5-7
Not Available
Chemical Composition
SiO2
Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chalcedony and Pyrophyllite Chemical Formula
While comparing Chalcedony 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 Chalcedony and Pyrophyllite chemical formula.
- Chemical formula of Chalcedony- SiO2
- Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chalcedony and Pyrophyllite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Chalcedony and Pyrophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chalcedony and Pyrophyllite Optical Properties during the identification of gemstone. Specific gravity of Chalcedony is 2.65-2.90 whereas that of Pyrophyllite is 2.65-2.90.