At ambient pressure, alabandite (α-MnS) is the stable MnS polymorph from room temperature up to the melting point of 1655 °C (Staffansson, 1976; Kang, 2010).
3 : Sulphides, Selenides, Tellurides, Arsenides and Bismuthides (except the arsenides, antimonides and bismuthides of Cu, Ag and Au, which are included in Section 1) 8 : Sulphides etc. of Cr, Mo, W an Mn