Tags: Chemical Substance, Mineral.
Franklinite is an oxide mineral belonging to the normal spinel subgroup’s iron (Fe) series with the formula ZnFe3+2O4. As with another spinel member magnetite both ferrous (2+) and ferric (3+) iron may be present in Franklinite samples. Divalent iron and/or manganese (Mn) may commonly accompany zinc (Zn) and trivalent manganese may substitute for some ferric iron.At its type locality Franklinite can be found with a wide array of minerals many of which are fluorescent.
