Oligoclase and Amethyst Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
insoluble in common solvents
Durability
Not Available
Not Available
Specific Gravity
2.62-2.67
2.65
Fracture
Gems, Sixth Edition (2006), Gems, Sixth Edition (2006), Uneven
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
Cleavage
From the Greek, oligos and kasein, little cleavage.
Indiscernible
Chemical Composition
Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
SiO2
Oligoclase and Amethyst Chemical Formula
While comparing Oligoclase and Amethyst 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 Amethyst 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 Amethyst- SiO2
Oligoclase and Amethyst Specific Gravity
Another important criteria for qualitative analysis of gemstones is Oligoclase and Amethyst Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Oligoclase and Amethyst Optical Properties during the identification of gemstone. Specific gravity of Oligoclase is 2.65 whereas that of Amethyst is 2.65.