Stichtite and Common Opal Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.11-2.20
1.98-2.50
Fracture
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Uneven
Conchoidal, Conchoidal, Gemstones of the world (2001)
Cleavage
Perfect on {0001}
Not Available
Mohs Hardness
Not Available
5.5-6.5
Chemical Composition
Mg 6Cr 2(CO 3)(OH) 16 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
Stichtite and Common Opal Chemical Formula
While comparing Stichtite 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 Stichtite and Common Opal chemical formula.
- Chemical formula of Stichtite- Mg 6Cr 2(CO 3)(OH) 16 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Common Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
Stichtite and Common Opal Specific Gravity
Another important criteria for qualitative analysis of gemstones is Stichtite and Common Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Stichtite and Common Opal Optical Properties during the identification of gemstone. Specific gravity of Stichtite is 1.98-2.50 whereas that of Common Opal is 1.98-2.50.