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