Erythrite and Friedelite Physical Properties
Tenacity
Sectile
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.06
3.06-3.19
Fracture
Sectile Curved shavings or scrapings produced by a knife blade, (e.g. graphite).
UnevenArthur Thomas, Gemstones (2009) Tough, UnevenArthur Thomas, Gemstones (2009) Tough, Brittle, Uneven
Cleavage
Perfect on {010}; poor on {100} and { 1 02}.
{010} Perfect
Mohs Hardness
Not Available
4-5
Chemical Composition
Co3(AsO4)2•8(H2O)
Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.
Erythrite and Friedelite Chemical Formula
While comparing Erythrite and Friedelite 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 Erythrite and Friedelite chemical formula.
- Chemical formula of Erythrite- Co3(AsO4)2•8(H2O)
- Chemical formula of Friedelite- Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.
Erythrite and Friedelite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Erythrite and Friedelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Erythrite and Friedelite Optical Properties during the identification of gemstone. Specific gravity of Erythrite is 3.06-3.19 whereas that of Friedelite is 3.06-3.19.