Childrenite and Faustite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Soluble
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.06-3.25
  
2.9
  
Fracture
Sub-Conchoidal, ConchoidalArthur Thomas, Conchoidal, Uneven
  
Conchoidal, ConchoidalAnthony et al, Conchoidal, Brittle, Conchoidal
  
Cleavage
Poor/indistinct on {100}
  
{???} Indistinct
  
Mohs Hardness
4.5-5
  
4.5
  
Chemical Composition
(Fe,Mn)AlPO 4(OH) 2 -H 2OArthur Thomas , Gemstones (2009)
  
(Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
  
Childrenite and Faustite Chemical Formula
While comparing Childrenite and Faustite 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 Faustite chemical formula.
- Chemical formula of Childrenite- (Fe,Mn)AlPO 4(OH) 2 -H 2OArthur Thomas , Gemstones (2009)
- Chemical formula of Faustite- (Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Childrenite and Faustite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Childrenite and Faustite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Childrenite and Faustite Optical Properties during the identification of gemstone. Specific gravity of Childrenite is 2.9 whereas that of Faustite is 2.9.