Pyrite and Malachite Physical Properties
Tenacity
Brittle
Not Available
Solubility
insoluble in water
Not Available
Durability
Not Available
Not Available
Specific Gravity
5.00-5.20
3.25-4.10
Fracture
Uneven, Conchoidal, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle
Conchoidal, Conchoidal, Gemstones (2009), Uneven
Cleavage
Indistinct on {001}; partings on {011} and {111}
Perfect on { 2 01} fair on {010}
Mohs Hardness
6-6.5
3.5-4
Chemical Composition
FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Cu2CO3(OH)2
Pyrite and Malachite Chemical Formula
While comparing Pyrite and Malachite 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 Pyrite and Malachite chemical formula.
- Chemical formula of Pyrite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Malachite- Cu2CO3(OH)2
Pyrite and Malachite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pyrite and Malachite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrite and Malachite Optical Properties during the identification of gemstone. Specific gravity of Pyrite is 3.25-4.10 whereas that of Malachite is 3.25-4.10.