Chalcedony and Fayalite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Soluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.55-2.70
4.392
Fracture
Uneven, Splintery, Conchoidal, Uneven, Splintery, Conchoidal, UnevenWalter Schumann
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Cleavage
Absent
{010} moderate, {100} imperfect
Mohs Hardness
6.5-7
6.5-7
Chemical Composition
SiO2
Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Chalcedony and Fayalite Chemical Formula
While comparing Chalcedony 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 Chalcedony and Fayalite chemical formula.
- Chemical formula of Chalcedony- SiO2
- Chemical formula of Fayalite- Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Chalcedony and Fayalite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Chalcedony and Fayalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chalcedony and Fayalite Optical Properties during the identification of gemstone. Specific gravity of Chalcedony is 4.392 whereas that of Fayalite is 4.392.