Braunite mineralogy and paragenesis from the Kajlidongri mine,Madhya Pradesh,India

The Kajlidongri manganese deposit, Madhya Pradesh, India contains braunite belonging to at least two different parageneses, i.e. a fine-grained, metamorphic type and a younger, coarser-grained, hydrothermal type. Microanalyses of braunite from these paragenetic types indicate considerable variations in iron content from zero to 32.7% Fe₃O₃, which the writers consider is due to varying proportions of braunite I and bixbyite modules in polysomatic braunite.