Quartz and Oligoclase Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.65
2.62-2.67
Fracture
Conchoidal, Conchoidal, Brittle, Gems
Gems, Sixth Edition (2006), Gems, Sixth Edition (2006), Uneven
Cleavage
{0110} Indistinct
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)
Quartz and Oligoclase Chemical Formula
While comparing Quartz 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 Quartz and Oligoclase chemical formula.
- Chemical formula of Quartz- SiO2
- Chemical formula of Oligoclase- Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Quartz and Oligoclase Specific Gravity
Another important criteria for qualitative analysis of gemstones is Quartz and Oligoclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Quartz and Oligoclase Optical Properties during the identification of gemstone. Specific gravity of Quartz is 2.62-2.67 whereas that of Oligoclase is 2.62-2.67.