Childrenite and Opal Physical Properties
Tenacity
Not Available
BrittleWalter Schumann
Solubility
Soluble
hot salt water
Durability
Not Available
Not Available
Specific Gravity
3.06-3.25
1.98-2.25
Fracture
Sub-Conchoidal, ConchoidalArthur Thomas, Conchoidal, Uneven
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Brittle
Cleavage
Poor/indistinct on {100}
None
Mohs Hardness
4.5-5
5-6.5
Chemical Composition
(Fe,Mn)AlPO 4(OH) 2 -H 2OArthur Thomas , Gemstones (2009)
SiO2 · nH2O
Childrenite and Opal Chemical Formula
While comparing Childrenite 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 Childrenite and Opal chemical formula.
- Chemical formula of Childrenite- (Fe,Mn)AlPO 4(OH) 2 -H 2OArthur Thomas , Gemstones (2009)
- Chemical formula of Opal- SiO2 · nH2O
Childrenite and Opal Specific Gravity
Another important criteria for qualitative analysis of gemstones is Childrenite and Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Childrenite and Opal Optical Properties during the identification of gemstone. Specific gravity of Childrenite is 1.98-2.25 whereas that of Opal is 1.98-2.25.