Erythrite and Diaspore Physical Properties
Tenacity
Sectile
Very brittle
Solubility
Not Available
insoluble
Durability
Not Available
Not Available
Specific Gravity
3.06
3.30-3.40
Fracture
Sectile Curved shavings or scrapings produced by a knife blade, (e.g. graphite).
Conchoidal, Brittle, Conchoidal
Cleavage
Perfect on {010}; poor on {100} and { 1 02}.
{010} perfect, {110} distinct, {100} in traces
Mohs Hardness
Not Available
6.5-7
Chemical Composition
Co3(AsO4)2•8(H2O)
AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Erythrite and Diaspore Chemical Formula
While comparing Erythrite and Diaspore 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 Diaspore chemical formula.
- Chemical formula of Erythrite- Co3(AsO4)2•8(H2O)
- Chemical formula of Diaspore- AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Erythrite and Diaspore Specific Gravity
Another important criteria for qualitative analysis of gemstones is Erythrite and Diaspore Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Erythrite and Diaspore Optical Properties during the identification of gemstone. Specific gravity of Erythrite is 3.30-3.40 whereas that of Diaspore is 3.30-3.40.