Petalite and Diopside Physical Properties
Solubility
insoluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.40
3.22-3.40
Fracture
Subconchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal
Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal
Cleavage
Perfect on {001}, poor on {201} with 38.5° angle between the two
Distinct/good on {110}
Chemical Composition
LiAlSi 4O 10Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
CaMgSi2O6
Petalite and Diopside Chemical Formula
While comparing Petalite and Diopside 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 Petalite and Diopside chemical formula.
- Chemical formula of Petalite- LiAlSi 4O 10Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Diopside- CaMgSi2O6
Petalite and Diopside Specific Gravity
Another important criteria for qualitative analysis of gemstones is Petalite and Diopside Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Petalite and Diopside Optical Properties during the identification of gemstone. Specific gravity of Petalite is 3.22-3.40 whereas that of Diopside is 3.22-3.40.