“This rasvumite crystal is partially altered, but colour and metallic lustre of fresh mineral is still well visible. Orange rust-like product is alkali-free iron sulphide close to pyrrhotite. Associating mineral is black aegirine-diopside. FOV is ~ 6x5 mm. Collected by Alexandr Samsonov in 1994 on dumps of Material'naya adit. Pavel M. Kartashov collection (#2041) and photo. ”