Moonstone and Dravite Physical Properties
Specific Gravity
2.56-2.60
3.03-3.18
Fracture
Uneven, ConchoidalWalter Schumann
Uneven, Irregular, Conchoidal
Cleavage
2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal
{???} Indistinct
Mohs Hardness
6-6.5
7-7.5
Chemical Composition
Plagioclase Feldspar s: (Na,Ca)Al1-2Si3-2O8 Orthoclase Feldspar : KAlSi3O8
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Moonstone and Dravite Chemical Formula
While comparing Moonstone and Dravite 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 Moonstone and Dravite chemical formula.
- Chemical formula of Moonstone- Plagioclase Feldspar s: (Na,Ca)Al1-2Si3-2O8 Orthoclase Feldspar : KAlSi3O8
- Chemical formula of Dravite- Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Moonstone and Dravite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Moonstone and Dravite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Moonstone and Dravite Optical Properties during the identification of gemstone. Specific gravity of Moonstone is 3.03-3.18 whereas that of Dravite is 3.03-3.18.