Abramovite

Abramovite
General
Category Sulfides and Sulfosalts
Chemical formula Pb2SnInBiS7
Strunz classification 02.HF.25a (8th edition)
Dana classification 03.01.03.03
Unit cell a = 23.4 Å, b = 5.77 Å, c = 5.83 Å; α = 89.1°, β = 89.9°, γ = 91.5°
Identification
Molar mass 1,066.44 g/mol
Color Silver gray
Crystal habit Encrustations - Forms crust-like aggregates on matrix
Crystal system Triclinic - Pinacoidal; Space group = P1
Twinning Lamellar on {100}
Cleavage Perfect on {100}
Luster Metallic
Streak Black
Diaphaneity Opaque
References [1][2][3][4]

Abramotive 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 1mm × 0.2mm in size, and is characterized by its non-commensurate structure.[4]

Etymology and History

Abramovite is named after the mineralogist Dmitry Vadimovich Abramov (1963–) of the A.E. Fersman Museum, Russia.[1]

It was discovered as fumarole crust on the Kudriavy volcano|Kudriavy (Kudryavyi) volcano, Iturup Island, Kuril Islands, Sakhalin Oblast, Far East Region, Russia.[4]

Formation

Abramovite is a product of precipitation from fumarolic gases (600°C) in an active stratovolcano.[1]

References

  1. ^ a b c Handbook of Mineralogy
  2. ^ Mindat.org
  3. ^ Webmineral.com Webmineral Data
  4. ^ a b c Yudovskaya, 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" (in Russian, English adstract). Zapiski Rossiiskogo Mineralogicheskogo Obshchestva: 37–43. doi:10.1134/S1075701508070052. ISSN 0869-6055.