Hercynite and Diaspore Physical Properties
Tenacity
Not Available
Very brittle
Solubility
Not Available
insoluble
Durability
Not Available
Not Available
Specific Gravity
4.39
3.30-3.40
Fracture
ConchoidalGemdat.org, Uneven
Conchoidal, Brittle, Conchoidal
Cleavage
{111} Indistinct, {111} Indistinct, {111} Indistinct
{010} perfect, {110} distinct, {100} in traces
Mohs Hardness
7.5-8
6.5-7
Chemical Composition
Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Hercynite and Diaspore Chemical Formula
While comparing Hercynite 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 Hercynite and Diaspore chemical formula.
- Chemical formula of Hercynite- Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
- Chemical formula of Diaspore- AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Hercynite and Diaspore Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hercynite and Diaspore Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hercynite and Diaspore Optical Properties during the identification of gemstone. Specific gravity of Hercynite is 3.30-3.40 whereas that of Diaspore is 3.30-3.40.