Erythrite and Apophyllite Physical Properties
Tenacity
Sectile
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.06
2.30-2.50
Fracture
Sectile Curved shavings or scrapings produced by a knife blade, (e.g. graphite).
Uneven, UnevenArthur Thomas, Gemstones (2009)
Cleavage
Perfect on {010}; poor on {100} and { 1 02}.
Perfect on (001)
Mohs Hardness
Not Available
4.5-5
Chemical Composition
Co3(AsO4)2•8(H2O)
KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
Erythrite and Apophyllite Chemical Formula
While comparing Erythrite and Apophyllite 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 Apophyllite chemical formula.
- Chemical formula of Erythrite- Co3(AsO4)2•8(H2O)
- Chemical formula of Apophyllite- KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
Erythrite and Apophyllite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Erythrite and Apophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Erythrite and Apophyllite Optical Properties during the identification of gemstone. Specific gravity of Erythrite is 2.30-2.50 whereas that of Apophyllite is 2.30-2.50.