Faustite and Spinel Physical Properties
Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
none
Durability
Not Available
Not Available
Specific Gravity
2.9
3.64-3.66
Fracture
Conchoidal, ConchoidalAnthony et al, Conchoidal, Brittle, Conchoidal
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
{???} Indistinct
None, but may exhibit slight parting
Mohs Hardness
4.5
8
Chemical Composition
(Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
MgAl2O4
Faustite and Spinel Chemical Formula
While comparing Faustite and Spinel 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 Faustite and Spinel chemical formula.
- Chemical formula of Faustite- (Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Spinel- MgAl2O4
Faustite and Spinel Specific Gravity
Another important criteria for qualitative analysis of gemstones is Faustite and Spinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Faustite and Spinel Optical Properties during the identification of gemstone. Specific gravity of Faustite is 3.64-3.66 whereas that of Spinel is 3.64-3.66.
