Abramovite
{{Infobox mineral
| name = Abramovite
| category = Sulfides and sulfosalts
| image = Abramovite.jpg
| caption =
| dana = 03.01.03.03
| strunz = 2.HF.25a (10th edition)
| system = Triclinic
| class = Pinacoidal ({{overline|1}})
(same H-M symbol)
| symmetry = P{{overline|1}}
| 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 {100}
| fracture =
| tenacity =
| mohs =
| twinning = Lamellar on {100}
| streak = Black
| luster = Metallic
| opticalprop =
| refractive =
| birefringence =
| dispersion =
| pleochroism =
| 2V =
| gravity =
| melt =
| fusibility =
| diagnostic =
| solubility =
| diaphaneity = Opaque
| references = {{Cite web |url=http://www.handbookofmineralogy.com/pdfs/abramovite.pdf |title=Handbook of Mineralogy |access-date=2011-04-28 |archive-date=2019-05-08 |archive-url=https://web.archive.org/web/20190508113852/http://www.handbookofmineralogy.com/pdfs/abramovite.pdf |url-status=dead }}[http://www.mindat.org/min-29261.html Mindat.org][http://webmineral.com/data/Abramovite.shtml Webmineral.com Webmineral Data]{{cite journal |author=Yudovskaya, M.A. |author2=Trubkin, N.V. |author3=Koporulina, E.V. |author4=Belakovsky, D.I. |author5=Mokhov, A.V. |author6=Kuznetsova, M.V. |author7=Golovanova, T.I. |year=2007 |title=Abramovite, Pb2SnInBiS7, a new mineral species from fumaroles of the Kudryavy Volcano, Kurile Islands |journal=Zapiski Rossiiskogo Mineralogicheskogo Obshchestva |pages=37–43 |language=Russian |doi=10.1134/S1075701508070052 |issn=0869-6055|bibcode = 2008GeoOD..50..551Y |s2cid=140650406 }}
}}
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 (born 1963) of the 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 ({{convert|600|C|disp=sqbr}}) 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 .{{Cite web |title=Abramovite |url=https://www.mindat.org/min-29261.html |access-date=2024-12-03 |website=www.mindat.org}}
The type locality for abramovite is Kudriavy volcano.https://www.mindat.org/min-29261.html
Minerals associated with abramovite at its type locality are wurtzite, sylvite, halite, galena, and anhydrite. https://www.mindat.org/min-29261.html
Related Minerals
Abramovite is a member of the cylindrite group. Other members of this group are:
| class="wikitable"
|+ |Pb3Sn4FeSb2S14 |Tric. 1 : P1 |
| Lévyclaudite
|Pb8Sn7Cu3(Bi,Sb)3S28 |Tric. 1 |
| Merelaniite
|Mo4Pb4VSbS15 |Tric. 1 |
Related Minerals (Strunz-mindat Grouping)
| class="wikitable"
|+ |2.HF. |[https://www.mindat.org/min-54278.html Ramosite] |Pb25.7Sn8.3Mn3.4Sb6.4S56.2 |Mon. |
| 2.HF.20
|Hg3Tl4As8Sb2S20 |Orth. mmm (2/m 2/m 2/m) :Cmca |
| 2.HF.25a
|Pb3Sn4FeSb2S14 |Tric. 1 : P1 |
| 2.HF.25b
|Fe2+(Pb,Sn2+)6Sn4+2Sb2S14 |Tric. 1 : P1 |
| 2.HF.25a
|[https://www.mindat.org/min-2387.html Lévyclaudite] |Pb8Sn7Cu3(Bi,Sb)3S28 |Tric. 1 |
| 2.HF.25b
|[https://www.mindat.org/min-3269.html Potosíite] |Pb6Sn3FeSb3S16 |Tric. |
| 2.HF.25b
|[https://www.mindat.org/min-27610.html Coiraite] |(Pb,Sn)12.5Sn5FeAs3S28 |Mon. |
| 2.HF.25b v
|[https://www.mindat.org/min-29671.html Plumbostannite] |Pb2Fe2Sn2Sb2S11 | |
| 2.HF.25a
|Mo4Pb4VSbS15 |Tric. 1 |
| 2.HF.30
|[https://www.mindat.org/min-2373.html Lengenbachite] |Ag4Cu2Pb18As12S39 |Tric. |