Hercynite and Chrome-Chalcedony Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
4.39
2.55-2.70
Fracture
ConchoidalGemdat.org, Uneven
Not Available
Cleavage
{111} Indistinct, {111} Indistinct, {111} Indistinct
Not Available
Mohs Hardness
7.5-8
6.5-7
Chemical Composition
Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)
Hercynite and Chrome-Chalcedony Chemical Formula
While comparing Hercynite and Chrome-Chalcedony 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 Hercynite and Chrome-Chalcedony chemical formula.
- Chemical formula of Hercynite- Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
- Chemical formula of Chrome-Chalcedony- SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)
Hercynite and Chrome-Chalcedony Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hercynite and Chrome-Chalcedony Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hercynite and Chrome-Chalcedony Optical Properties during the identification of gemstone. Specific gravity of Hercynite is 2.55-2.70 whereas that of Chrome-Chalcedony is 2.55-2.70.