Dolomite and Chalcedony Physical Properties
Tenacity
Brittle
Not Available
Solubility
Poorly soluble in dilute HCl
Soluble
Durability
Not Available
Not Available
Specific Gravity
2.80-2.95
2.55-2.70
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Uneven, Splintery, Conchoidal, Uneven, Splintery, Conchoidal, UnevenWalter Schumann
Cleavage
Perfect on {10 1 1}, rhombohedral cleavage
Absent
Mohs Hardness
3.5-4
6.5-7
Chemical Composition
CaMg(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
SiO2
Dolomite and Chalcedony Chemical Formula
While comparing Dolomite and Chalcedony 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 Dolomite and Chalcedony chemical formula.
- Chemical formula of Dolomite- CaMg(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Chalcedony- SiO2
Dolomite and Chalcedony Specific Gravity
Another important criteria for qualitative analysis of gemstones is Dolomite and Chalcedony Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dolomite and Chalcedony Optical Properties during the identification of gemstone. Specific gravity of Dolomite is 2.55-2.70 whereas that of Chalcedony is 2.55-2.70.