Obsidian and Dolomite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Poorly soluble in dilute HCl
Durability
Not Available
Not Available
Specific Gravity
2.35-2.60
2.80-2.95
Fracture
Conchoidal, ConchoidalWalter Schumann, Conchoidal
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Cleavage
Not Available
Perfect on {10 1 1}, rhombohedral cleavage
Mohs Hardness
5-5.5
3.5-4
Chemical Composition
Not Available
CaMg(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Obsidian and Dolomite Chemical Formula
While comparing Obsidian 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 Obsidian and Dolomite chemical formula.
>- Chemical formula of Dolomite- CaMg(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Obsidian and Dolomite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Obsidian and Dolomite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Obsidian and Dolomite Optical Properties during the identification of gemstone. Specific gravity of Obsidian is 2.80-2.95 whereas that of Dolomite is 2.80-2.95.