Childrenite and Gahnite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Soluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.06-3.25
4.00-4.62
Fracture
Sub-Conchoidal, ConchoidalArthur Thomas, Conchoidal, Uneven
Conchoidal, Uneven
Cleavage
Poor/indistinct on {100}
Indistinct parting on [111]
Mohs Hardness
4.5-5
7.5-8
Chemical Composition
(Fe,Mn)AlPO 4(OH) 2 -H 2OArthur Thomas , Gemstones (2009)
ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Childrenite and Gahnite Chemical Formula
While comparing Childrenite and Gahnite 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 Gahnite chemical formula.
- Chemical formula of Childrenite- (Fe,Mn)AlPO 4(OH) 2 -H 2OArthur Thomas , Gemstones (2009)
- Chemical formula of Gahnite- ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Childrenite and Gahnite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Childrenite and Gahnite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Childrenite and Gahnite Optical Properties during the identification of gemstone. Specific gravity of Childrenite is 4.00-4.62 whereas that of Gahnite is 4.00-4.62.