Hemimorphite and Boulder Opal Physical Properties
Tenacity
Brittle
Not Available
Solubility
Soluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.30-3.50
1.98-2.25
Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Perfect on {110}, poor on {101}, {001} rare
Not Available
Chemical Composition
Zn 4Si 2O 7(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
SiO 2 + H 2OUlrich Henn and Claudio C.
Hemimorphite and Boulder Opal Chemical Formula
While comparing Hemimorphite and Boulder 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 Boulder 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 Boulder Opal- SiO 2 + H 2OUlrich Henn and Claudio C.
Hemimorphite and Boulder Opal Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hemimorphite and Boulder Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hemimorphite and Boulder Opal Optical Properties during the identification of gemstone. Specific gravity of Hemimorphite is 1.98-2.25 whereas that of Boulder Opal is 1.98-2.25.