Demantoid and Oligoclase Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.77-3.95
2.62-2.67
Fracture
Not Available
Gems, Sixth Edition (2006), Gems, Sixth Edition (2006), Uneven
Cleavage
Not Available
From the Greek, oligos and kasein, little cleavage.
Chemical Composition
Ca 3Fe 2(SiO 4) 3Ulrich Henn and Claudio C.
Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Demantoid and Oligoclase Chemical Formula
While comparing Demantoid 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 Demantoid and Oligoclase chemical formula.
- Chemical formula of Demantoid- Ca 3Fe 2(SiO 4) 3Ulrich Henn and Claudio C.
- Chemical formula of Oligoclase- Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Demantoid and Oligoclase Specific Gravity
Another important criteria for qualitative analysis of gemstones is Demantoid and Oligoclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Demantoid and Oligoclase Optical Properties during the identification of gemstone. Specific gravity of Demantoid is 2.62-2.67 whereas that of Oligoclase is 2.62-2.67.