Dravite and Galena Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.03-3.18
6.23
Fracture
Uneven, Uneven, Irregular, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Subconchoidal, Brittle, Metallic
Cleavage
{???} Indistinct
Cubic perfect on [001], parting on [111]
Mohs Hardness
7-7.5
2.5-2.75
Chemical Composition
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
PbS
Dravite and Galena Chemical Formula
While comparing Dravite 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 Dravite and Galena chemical formula.
- Chemical formula of Dravite- Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
- Chemical formula of Galena- PbS
Dravite and Galena Specific Gravity
Another important criteria for qualitative analysis of gemstones is Dravite and Galena Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dravite and Galena Optical Properties during the identification of gemstone. Specific gravity of Dravite is 6.23 whereas that of Galena is 6.23.