Forsterite and Erythrite Physical Properties
Tenacity
Not Available
Sectile
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.23-3.26
3.06
Fracture
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Sectile Curved shavings or scrapings produced by a knife blade, (e.g. graphite).
Cleavage
Perfect on {010} imperfect on {100}
Perfect on {010}; poor on {100} and { 1 02}.
Mohs Hardness
6.5-7
Not Available
Chemical Composition
Mg 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Co3(AsO4)2•8(H2O)
Forsterite and Erythrite Chemical Formula
While comparing Forsterite and Erythrite 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 Forsterite and Erythrite chemical formula.
- Chemical formula of Forsterite- Mg 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Erythrite- Co3(AsO4)2•8(H2O)
Forsterite and Erythrite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Forsterite and Erythrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Forsterite and Erythrite Optical Properties during the identification of gemstone. Specific gravity of Forsterite is 3.06 whereas that of Erythrite is 3.06.