Celestine and Pyrophyllite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.90-4.00
2.65-2.90
Fracture
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Gemstones (2009), Flexible Flexible fragments.
Cleavage
Perfect on {001}, good on {210}, poor on {010}
{001} Perfect
Mohs Hardness
3-3.5
Not Available
Chemical Composition
SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Celestine and Pyrophyllite Chemical Formula
While comparing Celestine 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 Celestine and Pyrophyllite chemical formula.
- Chemical formula of Celestine- SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Celestine and Pyrophyllite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Celestine and Pyrophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Celestine and Pyrophyllite Optical Properties during the identification of gemstone. Specific gravity of Celestine is 2.65-2.90 whereas that of Pyrophyllite is 2.65-2.90.