Abramovite
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.
Etymology and history
Abramovite is named after the mineralogist Dmitry Vadimovich Abramov of the Fersman [Mineralogical Museum|A.E. Fersman Museum], Russia.It was discovered as fumarole crust on the Kudriavy volcano, Iturup Island, Kuril Islands, Russia.
Formation
Abramovite is a product of precipitation from fumarolic gases in an active stratovolcano.Type occurrence
Abramovite comes in small metallic aggregates less than 1 mm across. Abramovite is conserved at A.E. Fersman Mineralogical Museum, Russian [Academy of Sciences], Moscow.The type locality for abramovite is Kudriavy volcano.
Minerals associated with abramovite at its type locality are wurtzite, sylvite, halite, galena, and anhydrite.
Related Minerals
Abramovite is a member of the cylindrite group. Other members of this group are:| Cylindrite | Pb3Sn4FeSb2S14 | Tric. 1 : P1 |
| Lévyclaudite | Pb8Sn7Cu33S28 | Tric. 1 |
| Merelaniite | Mo4Pb4VSbS15 | Tric. 1 |
Related Minerals
| 2.HF. | Pb25.7Sn8.3Mn3.4Sb6.4S56.2 | Mon. | |
| 2.HF.20 | Vrbaite | Hg3Tl4As8Sb2S20 | Orth. mmm :Cmca |
| 2.HF.25a | Cylindrite | Pb3Sn4FeSb2S14 | Tric. 1 : P1 |
| 2.HF.25b | Franckeite | Fe2+6Sn4+2Sb2S14 | Tric. 1 : P1 |
| 2.HF.25a | Pb8Sn7Cu33S28 | Tric. 1 | |
| 2.HF.25b | Pb6Sn3FeSb3S16 | Tric. | |
| 2.HF.25b | 12.5Sn5FeAs3S28 | Mon. | |
| 2.HF.25b v | Pb2Fe2Sn2Sb2S11 | ||
| 2.HF.25a | Merelaniite | Mo4Pb4VSbS15 | Tric. 1 |
| 2.HF.30 | Ag4Cu2Pb18As12S39 | Tric. |