Esperite and Apophyllite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
4.28-4.42
2.30-2.50
Fracture
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Metallic
Uneven, UnevenArthur Thomas, Gemstones (2009)
Cleavage
Distinct on [010] and [100] poor on [101]
Perfect on (001)
Mohs Hardness
5-5.5
4.5-5
Chemical Composition
PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)
KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
Esperite and Apophyllite Chemical Formula
While comparing Esperite and Apophyllite 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 Esperite and Apophyllite chemical formula.
- Chemical formula of Esperite- PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)
- Chemical formula of Apophyllite- KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
Esperite and Apophyllite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Esperite and Apophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Esperite and Apophyllite Optical Properties during the identification of gemstone. Specific gravity of Esperite is 2.30-2.50 whereas that of Apophyllite is 2.30-2.50.