Precious Opal and Childrenite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Soluble
Durability
Not Available
Not Available
Specific Gravity
1.98-2.25
3.06-3.25
Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references
Sub-Conchoidal, ConchoidalArthur Thomas, Conchoidal, Uneven
Cleavage
Not Available
Poor/indistinct on {100}
Mohs Hardness
5-6.5
4.5-5
Chemical Composition
SiO 2 · nH 2OGemdat.org , Management Team (2012)
(Fe,Mn)AlPO 4(OH) 2 -H 2OArthur Thomas , Gemstones (2009)
Precious Opal and Childrenite Chemical Formula
While comparing Precious Opal and Childrenite 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 Precious Opal and Childrenite chemical formula.
- Chemical formula of Precious Opal- SiO 2 · nH 2OGemdat.org , Management Team (2012)
- Chemical formula of Childrenite- (Fe,Mn)AlPO 4(OH) 2 -H 2OArthur Thomas , Gemstones (2009)
Precious Opal and Childrenite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Precious Opal and Childrenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Precious Opal and Childrenite Optical Properties during the identification of gemstone. Specific gravity of Precious Opal is 3.06-3.25 whereas that of Childrenite is 3.06-3.25.