Hercynite and Labradorite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
4.39
2.69-2.72
Fracture
ConchoidalGemdat.org, Uneven
Uneven, Conchoidal, Gems, Sixth Edition (2006)
Cleavage
{111} Indistinct, {111} Indistinct, {111} Indistinct
Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110}
Mohs Hardness
7.5-8
6-6.5
Chemical Composition
Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
(Na,Ca)1-2Si3-2O8
Hercynite and Labradorite Chemical Formula
While comparing Hercynite and Labradorite 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 Labradorite chemical formula.
- Chemical formula of Hercynite- Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
- Chemical formula of Labradorite- (Na,Ca)1-2Si3-2O8
Hercynite and Labradorite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hercynite and Labradorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hercynite and Labradorite Optical Properties during the identification of gemstone. Specific gravity of Hercynite is 2.69-2.72 whereas that of Labradorite is 2.69-2.72.