Melanite and Vivianite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.70-4.10
2.64-2.70
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
(e.g. graphite).
Cleavage
Not Available
{010} Perfect
Mohs Hardness
6.5-7
Not Available
Chemical Composition
Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
Melanite and Vivianite Chemical Formula
While comparing Melanite and Vivianite 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 Melanite and Vivianite chemical formula.
- Chemical formula of Melanite- Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
- Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
Melanite and Vivianite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Melanite and Vivianite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Melanite and Vivianite Optical Properties during the identification of gemstone. Specific gravity of Melanite is 2.64-2.70 whereas that of Vivianite is 2.64-2.70.