Opal and Anorthoclase Physical Properties
Tenacity
BrittleWalter Schumann
Not Available
Solubility
hot salt water
Not Available
Durability
Not Available
Not Available
Specific Gravity
1.98-2.25
2.56-2.62
Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Brittle
Uneven, Uneven, Gems, Sixth Edition (2006)
Cleavage
None
From the Greek for oblique and fracture, descriptive of the cleavage
Mohs Hardness
5-6.5
6-6.5
Chemical Composition
SiO2 · nH2O
(Na,K)AlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Opal and Anorthoclase Chemical Formula
While comparing Opal and Anorthoclase 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 Opal and Anorthoclase chemical formula.
- Chemical formula of Opal- SiO2 · nH2O
- Chemical formula of Anorthoclase- (Na,K)AlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Opal and Anorthoclase Specific Gravity
Another important criteria for qualitative analysis of gemstones is Opal and Anorthoclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Opal and Anorthoclase Optical Properties during the identification of gemstone. Specific gravity of Opal is 2.56-2.62 whereas that of Anorthoclase is 2.56-2.62.