Malachite and Adamite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.25-4.10
4.32-4.48
Fracture
Conchoidal, Conchoidal, Gemstones (2009), Uneven
Uneven, Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven, Subconchoidal, Brittle, Metallic, Brittle, Metallic
Cleavage
Perfect on { 2 01} fair on {010}
{101}, good; {010}, poor
Chemical Composition
Cu2CO3(OH)2
Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)
Malachite and Adamite Chemical Formula
While comparing Malachite and Adamite 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 Adamite chemical formula.
- Chemical formula of Malachite- Cu2CO3(OH)2
- Chemical formula of Adamite- Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)
Malachite and Adamite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Malachite and Adamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Malachite and Adamite Optical Properties during the identification of gemstone. Specific gravity of Malachite is 4.32-4.48 whereas that of Adamite is 4.32-4.48.