Esperite and Emerald Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Hard
Specific Gravity
4.28-4.42
2.67-2.78
Fracture
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Metallic
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
Cleavage
Distinct on [010] and [100] poor on [101]
Imperfect on the [0001]
Mohs Hardness
5-5.5
7.5-8
Chemical Composition
PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)
Be3Al2SiO6
Esperite and Emerald Chemical Formula
While comparing Esperite and Emerald 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 Emerald chemical formula.
- Chemical formula of Esperite- PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)
- Chemical formula of Emerald- Be3Al2SiO6
Esperite and Emerald Specific Gravity
Another important criteria for qualitative analysis of gemstones is Esperite and Emerald Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Esperite and Emerald Optical Properties during the identification of gemstone. Specific gravity of Esperite is 2.67-2.78 whereas that of Emerald is 2.67-2.78.