Riebeckite and Fayalite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.28-3.44
4.392
Fracture
Uneven, Splintery, Brittle
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Cleavage
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
{010} moderate, {100} imperfect
Mohs Hardness
5.0-6.0
6.5-7
Chemical Composition
Not Available
Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Riebeckite and Fayalite Chemical Formula
While comparing Riebeckite and Fayalite 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 Riebeckite and Fayalite chemical formula.
>- Chemical formula of Fayalite- Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Riebeckite and Fayalite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Riebeckite and Fayalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Riebeckite and Fayalite Optical Properties during the identification of gemstone. Specific gravity of Riebeckite is 4.392 whereas that of Fayalite is 4.392.