Glaucophane and Melanite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3-3.15
3.70-4.10
Fracture
Conchoidal, Brittle, Conchoidal
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Good on [110] and on [001]
Not Available
Mohs Hardness
6.0-6.5
6.5-7
Chemical Composition
[ ]Na2(Mg3Al2)Si8O22(OH)2
Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Glaucophane and Melanite Chemical Formula
While comparing Glaucophane and Melanite 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 Melanite chemical formula.
- Chemical formula of Glaucophane- [ ]Na2(Mg3Al2)Si8O22(OH)2
- Chemical formula of Melanite- Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Glaucophane and Melanite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Glaucophane and Melanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Glaucophane and Melanite Optical Properties during the identification of gemstone. Specific gravity of Glaucophane is 3.70-4.10 whereas that of Melanite is 3.70-4.10.