Abstract Chromite [(Mg, Fe) O (Cr, Al, Fe 3+) 2 O 3] is the only primary source of Cr from
natural rocks. Primary or liquidus composition of chromite can be used as a petrogenetic
indicator because the chemistry of chromite reflects that of its parental magma, which
generates in a specific tectonic setting. Chromite deposits are genetically linked to ultramafic-
mafic magmatism that are restricted to specific periods in the geological time-scale, and
have specific tectonic settings (eg, Stowe, 1994; Mondal et al., 2006). For example:(1) …