Serandite and Opal Physical Properties
Tenacity
Not Available
BrittleWalter Schumann
Solubility
Not Available
hot salt water
Durability
Not Available
Not Available
Specific Gravity
3.52
1.98-2.25
Fracture
UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001)
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Brittle
Cleavage
{100} Perfect, {001} Perfect
None
Mohs Hardness
5-5.5
5-6.5
Chemical Composition
Na(Mn2+ ,Ca) 2Si 3O 8(OH)Michael OâDonoghue , Gems, Sixth Edition (2006)
SiO2 · nH2O
Serandite and Opal Chemical Formula
While comparing Serandite and 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 Serandite and Opal chemical formula.
- Chemical formula of Serandite- Na(Mn2+ ,Ca) 2Si 3O 8(OH)Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Opal- SiO2 · nH2O
Serandite and Opal Specific Gravity
Another important criteria for qualitative analysis of gemstones is Serandite and Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Serandite and Opal Optical Properties during the identification of gemstone. Specific gravity of Serandite is 1.98-2.25 whereas that of Opal is 1.98-2.25.