Neptunite and Calcite Physical Properties
Solubility
Not Available
Soluble
Durability
Not Available
Not Available
Specific Gravity
3.19-3.23
2.67-2.73
Fracture
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Cleavage
{110} good
Perfect on [10 1 1] three directions with angle of 74° 55
Chemical Composition
KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael OâDonoghue , Gems, Sixth Edition (2006)
CaCO 3Ulrich Henn and Claudio C.
Neptunite and Calcite Chemical Formula
While comparing Neptunite 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 Neptunite and Calcite chemical formula.
- Chemical formula of Neptunite- KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Calcite- CaCO 3Ulrich Henn and Claudio C.
Neptunite and Calcite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Neptunite and Calcite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Neptunite and Calcite Optical Properties during the identification of gemstone. Specific gravity of Neptunite is 2.67-2.73 whereas that of Calcite is 2.67-2.73.