Oligoclase and Peridot Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.62-2.67
1.54-1.55
Fracture
Gems, Sixth Edition (2006), Gems, Sixth Edition (2006), Uneven
Conchoidal
Cleavage
From the Greek, oligos and kasein, little cleavage.
Poor
Mohs Hardness
6-6.5
6.5-7
Chemical Composition
Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
(Mg,Fe)2SiO4
Oligoclase and Peridot Chemical Formula
While comparing Oligoclase and Peridot 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 Oligoclase and Peridot chemical formula.
- Chemical formula of Oligoclase- Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Peridot- (Mg,Fe)2SiO4
Oligoclase and Peridot Specific Gravity
Another important criteria for qualitative analysis of gemstones is Oligoclase and Peridot Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Oligoclase and Peridot Optical Properties during the identification of gemstone. Specific gravity of Oligoclase is 1.54-1.55 whereas that of Peridot is 1.54-1.55.