Grandidierite and Childrenite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Soluble
Durability
Not Available
Not Available
Specific Gravity
2.85-3.00
3.06-3.25
Fracture
Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven
Sub-Conchoidal, ConchoidalArthur Thomas, Conchoidal, Uneven
Cleavage
Perfect
Poor/indistinct on {100}
Chemical Composition
(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
(Fe,Mn)AlPO 4(OH) 2 -H 2OArthur Thomas , Gemstones (2009)
Grandidierite and Childrenite Chemical Formula
While comparing Grandidierite 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 Grandidierite and Childrenite chemical formula.
- Chemical formula of Grandidierite- (Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
- Chemical formula of Childrenite- (Fe,Mn)AlPO 4(OH) 2 -H 2OArthur Thomas , Gemstones (2009)
Grandidierite and Childrenite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Grandidierite and Childrenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Grandidierite and Childrenite Optical Properties during the identification of gemstone. Specific gravity of Grandidierite is 3.06-3.25 whereas that of Childrenite is 3.06-3.25.