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