Home
Gemstones


Erythrite and Polyhalite Physical Properties


Polyhalite and Erythrite Physical Properties


Physical Properties

Tenacity
Sectile   
Brittle   

Solubility
Not Available   
Soluble   

Durability
Not Available   
Not Available   

Specific Gravity
3.06   
2.78   

Fracture
Sectile Curved shavings or scrapings produced by a knife blade, (e.g. graphite).   
Conchoidal, Brittle   

Cleavage
Perfect on {010}; poor on {100} and { 1 02}.   
Perfect on {10 1 }; parting on {010}   

Mohs Hardness
Not Available   
3.5   

Chemical Composition
Co3(AsO4)2•8(H2O)   
Not Available   

Optical Properties >>
<< Astrology

Erythrite and Polyhalite Chemical Formula

While comparing Erythrite and Polyhalite 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 Polyhalite chemical formula.

Compare Red Gemstones

Erythrite and Polyhalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Erythrite and Polyhalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Erythrite and Polyhalite Optical Properties during the identification of gemstone. Specific gravity of Erythrite is 2.78 whereas that of Polyhalite is 2.78.

Red Gemstones

Red Gemstones


Compare Red Gemstones