Glaucophane and Esperite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3-3.15
4.28-4.42
Fracture
Conchoidal, Brittle, Conchoidal
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Metallic
Cleavage
Good on [110] and on [001]
Distinct on [010] and [100] poor on [101]
Mohs Hardness
6.0-6.5
5-5.5
Chemical Composition
[ ]Na2(Mg3Al2)Si8O22(OH)2
PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)
Glaucophane and Esperite Chemical Formula
While comparing Glaucophane 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 Glaucophane and Esperite chemical formula.
- Chemical formula of Glaucophane- [ ]Na2(Mg3Al2)Si8O22(OH)2
- Chemical formula of Esperite- PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)
Glaucophane and Esperite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Glaucophane and Esperite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Glaucophane and Esperite Optical Properties during the identification of gemstone. Specific gravity of Glaucophane is 4.28-4.42 whereas that of Esperite is 4.28-4.42.