Chalcedony and Esperite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Soluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.55-2.70
4.28-4.42
Fracture
Uneven, Splintery, Conchoidal, Uneven, Splintery, Conchoidal, UnevenWalter Schumann
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Metallic
Cleavage
Absent
Distinct on [010] and [100] poor on [101]
Mohs Hardness
6.5-7
5-5.5
Chemical Composition
SiO2
PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)
Chalcedony and Esperite Chemical Formula
While comparing Chalcedony 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 Chalcedony and Esperite chemical formula.
- Chemical formula of Chalcedony- SiO2
- Chemical formula of Esperite- PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)
Chalcedony and Esperite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Chalcedony and Esperite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chalcedony and Esperite Optical Properties during the identification of gemstone. Specific gravity of Chalcedony is 4.28-4.42 whereas that of Esperite is 4.28-4.42.