Lazulite and Galena Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.04-3.17
6.23
Fracture
Uneven, Uneven, Gemstones of the world (2001) More from other references
Subconchoidal, Brittle, Metallic
Cleavage
{001} Indistinct, {???} Indistinct
Cubic perfect on [001], parting on [111]
Mohs Hardness
5.5
2.5-2.75
Chemical Composition
(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
PbS
Lazulite and Galena Chemical Formula
While comparing Lazulite and Galena 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 Lazulite and Galena chemical formula.
- Chemical formula of Lazulite- (Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
- Chemical formula of Galena- PbS
Lazulite and Galena Specific Gravity
Another important criteria for qualitative analysis of gemstones is Lazulite and Galena Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lazulite and Galena Optical Properties during the identification of gemstone. Specific gravity of Lazulite is 6.23 whereas that of Galena is 6.23.