Petalite and Calcite Physical Properties
Solubility
insoluble
Soluble
Durability
Not Available
Not Available
Specific Gravity
2.40
2.67-2.73
Fracture
Subconchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Cleavage
Perfect on {001}, poor on {201} with 38.5° angle between the two
Perfect on [10 1 1] three directions with angle of 74° 55
Chemical Composition
LiAlSi 4O 10Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
CaCO 3Ulrich Henn and Claudio C.
Petalite and Calcite Chemical Formula
While comparing Petalite and Calcite 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 Petalite and Calcite chemical formula.
- Chemical formula of Petalite- LiAlSi 4O 10Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Calcite- CaCO 3Ulrich Henn and Claudio C.
Petalite and Calcite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Petalite and Calcite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Petalite and Calcite Optical Properties during the identification of gemstone. Specific gravity of Petalite is 2.67-2.73 whereas that of Calcite is 2.67-2.73.