Creedite and Esperite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.70
4.28-4.42
Fracture
Uneven, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Metallic
Cleavage
Perfect on {100}
Distinct on [010] and [100] poor on [101]
Chemical Composition
Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.
PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)
Creedite and Esperite Chemical Formula
While comparing Creedite and Esperite 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 Esperite chemical formula.
- Chemical formula of Creedite- Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.
- Chemical formula of Esperite- PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)
Creedite and Esperite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Creedite and Esperite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Creedite and Esperite Optical Properties during the identification of gemstone. Specific gravity of Creedite is 4.28-4.42 whereas that of Esperite is 4.28-4.42.