Creedite and Neptunite Physical Properties
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.70
3.19-3.23
Fracture
Uneven, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle
Cleavage
Perfect on {100}
{110} good
Chemical Composition
Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.
KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael OâDonoghue , Gems, Sixth Edition (2006)
Creedite and Neptunite Chemical Formula
While comparing Creedite and Neptunite 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 Creedite and Neptunite chemical formula.
- Chemical formula of Creedite- Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.
- Chemical formula of Neptunite- KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael OâDonoghue , Gems, Sixth Edition (2006)
Creedite and Neptunite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Creedite and Neptunite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Creedite and Neptunite Optical Properties during the identification of gemstone. Specific gravity of Creedite is 3.19-3.23 whereas that of Neptunite is 3.19-3.23.