Hemimorphite and Fire Opal Physical Properties
Specific Gravity
3.30-3.50
1.97-2.22
Fracture
Uneven, ConchoidalWalter Schumann, Conchoidal
Conchoidal
Cleavage
Perfect on {110}, poor on {101}, {001} rare
None
Chemical Composition
Zn 4Si 2O 7(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001) More from other references
Hemimorphite and Fire Opal Chemical Formula
While comparing Hemimorphite and Fire 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 Hemimorphite and Fire Opal chemical formula.
- Chemical formula of Hemimorphite- Zn 4Si 2O 7(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Fire Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001) More from other references
Hemimorphite and Fire Opal Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hemimorphite and Fire Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hemimorphite and Fire Opal Optical Properties during the identification of gemstone. Specific gravity of Hemimorphite is 1.97-2.22 whereas that of Fire Opal is 1.97-2.22.