Galena and Forsterite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
6.23
3.23-3.26
Fracture
Subconchoidal, Brittle, Metallic
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Cleavage
Cubic perfect on [001], parting on [111]
Perfect on {010} imperfect on {100}
Mohs Hardness
2.5-2.75
6.5-7
Chemical Composition
PbS
Mg 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Galena and Forsterite Chemical Formula
While comparing Galena and Forsterite 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 Galena and Forsterite chemical formula.
- Chemical formula of Galena- PbS
- Chemical formula of Forsterite- Mg 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Galena and Forsterite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Galena and Forsterite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Galena and Forsterite Optical Properties during the identification of gemstone. Specific gravity of Galena is 3.23-3.26 whereas that of Forsterite is 3.23-3.26.