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