Esperite and Gahnite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
4.28-4.42
4.00-4.62
Fracture
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Metallic
Conchoidal, Uneven
Cleavage
Distinct on [010] and [100] poor on [101]
Indistinct parting on [111]
Mohs Hardness
5-5.5
7.5-8
Chemical Composition
PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)
ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Esperite and Gahnite Chemical Formula
While comparing Esperite and Gahnite 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 Gahnite chemical formula.
- Chemical formula of Esperite- PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)
- Chemical formula of Gahnite- ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Esperite and Gahnite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Esperite and Gahnite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Esperite and Gahnite Optical Properties during the identification of gemstone. Specific gravity of Esperite is 4.00-4.62 whereas that of Gahnite is 4.00-4.62.