Malachite and Proustite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.25-4.10
5.51-5.64
Fracture
Conchoidal, Conchoidal, Gemstones (2009), Uneven
Uneven, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Cleavage
Perfect on { 2 01} fair on {010}
Distinct on {10 1 1}
Chemical Composition
Cu2CO3(OH)2
Ag 3AsS 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Malachite and Proustite Chemical Formula
While comparing Malachite and Proustite 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 Proustite chemical formula.
- Chemical formula of Malachite- Cu2CO3(OH)2
- Chemical formula of Proustite- Ag 3AsS 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Malachite and Proustite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Malachite and Proustite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Malachite and Proustite Optical Properties during the identification of gemstone. Specific gravity of Malachite is 5.51-5.64 whereas that of Proustite is 5.51-5.64.