Amethyst and Esperite Physical Properties
Tenacity
Not Available
Not Available
Solubility
insoluble in common solvents
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.65
4.28-4.42
Fracture
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Metallic
Cleavage
Indiscernible
Distinct on [010] and [100] poor on [101]
Chemical Composition
SiO2
PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)
Amethyst and Esperite Chemical Formula
While comparing Amethyst 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 Amethyst and Esperite chemical formula.
- Chemical formula of Amethyst- SiO2
- Chemical formula of Esperite- PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)
Amethyst and Esperite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Amethyst and Esperite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Amethyst and Esperite Optical Properties during the identification of gemstone. Specific gravity of Amethyst is 4.28-4.42 whereas that of Esperite is 4.28-4.42.