Malachite and Dolomite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Poorly soluble in dilute HCl
Durability
Not Available
Not Available
Specific Gravity
3.25-4.10
2.80-2.95
Fracture
Conchoidal, Conchoidal, Gemstones (2009), Uneven
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Cleavage
Perfect on { 2 01} fair on {010}
Perfect on {10 1 1}, rhombohedral cleavage
Mohs Hardness
3.5-4
3.5-4
Chemical Composition
Cu2CO3(OH)2
CaMg(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Malachite and Dolomite Chemical Formula
While comparing Malachite and Dolomite 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 Dolomite chemical formula.
- Chemical formula of Malachite- Cu2CO3(OH)2
- Chemical formula of Dolomite- CaMg(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Malachite and Dolomite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Malachite and Dolomite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Malachite and Dolomite Optical Properties during the identification of gemstone. Specific gravity of Malachite is 2.80-2.95 whereas that of Dolomite is 2.80-2.95.