Hackmanite and Erythrite Physical Properties
Tenacity
Not Available
Sectile
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.27-2.33
3.06
Fracture
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
Sectile Curved shavings or scrapings produced by a knife blade, (e.g. graphite).
Cleavage
Not Available
Perfect on {010}; poor on {100} and { 1 02}.
Mohs Hardness
5.5-6
Not Available
Chemical Composition
Na 8Al 6Si 6O 24Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Co3(AsO4)2•8(H2O)
Hackmanite and Erythrite Chemical Formula
While comparing Hackmanite 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 Hackmanite and Erythrite chemical formula.
- Chemical formula of Hackmanite- Na 8Al 6Si 6O 24Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Erythrite- Co3(AsO4)2•8(H2O)
Hackmanite and Erythrite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hackmanite and Erythrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hackmanite and Erythrite Optical Properties during the identification of gemstone. Specific gravity of Hackmanite is 3.06 whereas that of Erythrite is 3.06.