Ilmenite and magnetite in basalts and dolerites(a,b)
Polishing characteristics and problems(a,f)
Adventitiously introduced metals and grinding grit, dried immersion oil and amalgam(a)
Ilmenite and magnetite in basalts and dolerites(a-f)
Altered iron-titanium oxides in alkali olivine basalt(a,b,e)
Sulphides within ultramafic rocks in ophiolites(a)
Unmineralized intermediate rocks(a,b,d)
Slightly mineralized granites(f)
Porphyry copper and molybdenum ores(f)
Massive sulphides in ophiolites(c)
Iron formations and bauxite(a-c)
Appalachian metamorphosed sulphides(b,f)
Unmineralized sandstones(a,b,e)
Iron formations and bauxite(d)
Silver-nickel-cobalt-arsenic-bismuth±uranium. The five metals association.(c-e)
Sulphides within ultramafic rocks in ophiolites(b,d-f)
Nickel-rich assemblages within Mississippi Valley-style mineralization(c,d)
Slightly mineralized granites(d,f)
Minor sulphide mineralization in granite(d,e)
Porphyry copper and molybdenum ores(d-f)
Porphyry-style tin-tungsten-molybdenum ores(c-e)
Mississippi Valley-style lead-zinc deposits(f)