Malachite and Pyrophyllite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.25-4.10
2.65-2.90
Fracture
Conchoidal, Conchoidal, Gemstones (2009), Uneven
Gemstones (2009), Flexible Flexible fragments.
Cleavage
Perfect on { 2 01} fair on {010}
{001} Perfect
Mohs Hardness
3.5-4
Not Available
Chemical Composition
Cu2CO3(OH)2
Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Malachite and Pyrophyllite Chemical Formula
While comparing Malachite 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 Malachite and Pyrophyllite chemical formula.
- Chemical formula of Malachite- Cu2CO3(OH)2
- Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Malachite and Pyrophyllite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Malachite and Pyrophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Malachite and Pyrophyllite Optical Properties during the identification of gemstone. Specific gravity of Malachite is 2.65-2.90 whereas that of Pyrophyllite is 2.65-2.90.