Epidote and Common Opal Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.25-3.50
1.98-2.50
Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Fibrous
Conchoidal, Conchoidal, Gemstones of the world (2001)
Cleavage
{001} perfect and {100} imperfect
Not Available
Mohs Hardness
6-7
5.5-6.5
Chemical Composition
CaAl 2(Fe3+ ,Al)Si 3O 12(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
Epidote and Common Opal Chemical Formula
While comparing Epidote and Common Opal 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 Epidote and Common Opal chemical formula.
- Chemical formula of Epidote- CaAl 2(Fe3+ ,Al)Si 3O 12(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Common Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
Epidote and Common Opal Specific Gravity
Another important criteria for qualitative analysis of gemstones is Epidote and Common Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Epidote and Common Opal Optical Properties during the identification of gemstone. Specific gravity of Epidote is 1.98-2.50 whereas that of Common Opal is 1.98-2.50.