Abramovite is a very rare mineral from the sulfides and sulfosalt categories. It has the chemical formula Pb2SnInBiS7. It occurs as tiny elongated lamellar-shaped crystals, up 1 mm × 0.2 mm in size, and is characterized by its non-commensurate structure.[5]
^ abcYudovskaya, M.A.; Trubkin, N.V.; Koporulina, E.V.; Belakovsky, D.I.; Mokhov, A.V.; Kuznetsova, M.V.; Golovanova, T.I. (2007). "Abramovite, Pb2SnInBiS7, a new mineral species from fumaroles of the Kudryavy Volcano, Kurile Islands". Zapiski Rossiiskogo Mineralogicheskogo Obshchestva (in Russian): 37–43. Bibcode:2008GeoOD..50..551Y. doi:10.1134/S1075701508070052. ISSN0869-6055. S2CID140650406.