Stability relations of manganese oxide minerals in metamorphic orebodies corresponding to sillimanite grade in Gowari Wadhona Mine area, Chhindwara District, Madhya Pradesh, India

Paragenesis is determined from textural features involves the following minerals--braunite, hollandite, bixbyite, vredenburgite, jacobsite, hausmannite, manganite, pyrolusite, cryptomelane, and hematite. Identifications were confirmed by X-ray. The stability and transformation of these minerals may be correlated with laboratory phase equilibrium studies, although experimentally determined temperatures seem high, perhaps because carried out in air