| Abramovite | |
| Category: | Sulfides and sulfosalts |
| Formula: | Pb2SnInBiS7 |
| Imasymbol: | Abm[1] |
| Dana: | 03.01.03.03 |
| Strunz: | 2.HF.25a (10th edition) |
| System: | Triclinic |
| Class: | Pinacoidal (same H-M symbol) |
| Symmetry: | P |
| Unit Cell: | a = 23.4 Å, b = 5.77 Å c = 5.83 Å; α = 89.1° β = 89.9°, γ = 91.5°; Z = 4 |
| Molweight: | 1,066.44 g/mol |
| Color: | Silver gray |
| Habit: | Encrustations – Forms crust-like aggregates on matrix |
| Cleavage: | Perfect on |
| Twinning: | Lamellar on |
| Streak: | Black |
| Luster: | Metallic |
| Diaphaneity: | Opaque |
| References: | [2] [3] [4] [5] |
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.
Abramovite is named after the mineralogist Dmitry Vadimovich Abramov (born 1963) of the A.E. Fersman Museum, Russia.
It was discovered as fumarole crust on the Kudriavy (Kudryavyi) volcano, Iturup Island, Kuril Islands, Sakhalin Oblast, Far East Region, Russia.
Abramovite is a product of precipitation from fumarolic gases (600C) in an active stratovolcano.