Galena and Augite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
6.23
3.19-3.56
Fracture
Subconchoidal, Brittle, Metallic
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Cleavage
Cubic perfect on [001], parting on [111]
{110} Perfect, {010} Indistinct
Mohs Hardness
2.5-2.75
5.5-6
Chemical Composition
PbS
(Ca,Na)(Mg,Fe,Al,Ti)(Si,Al) 2O 6Anthony et al , Handbook of mineralogy (2001)
Galena and Augite Chemical Formula
While comparing Galena and Augite 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 Galena and Augite chemical formula.
- Chemical formula of Galena- PbS
- Chemical formula of Augite- (Ca,Na)(Mg,Fe,Al,Ti)(Si,Al) 2O 6Anthony et al , Handbook of mineralogy (2001)
Galena and Augite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Galena and Augite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Galena and Augite Optical Properties during the identification of gemstone. Specific gravity of Galena is 3.19-3.56 whereas that of Augite is 3.19-3.56.