Plumbopyrochlore (of Skorobogatova et al.)

(Pb,Y,U,Ca)2-xNb2O6(OH)
Discovered
1966
Also known as
  • Plumbopyrochlor

Where it forms, where it's found

Type locality
Tai-Keu REE-Nb occurrence
  1. Labytnangi
  2. Yamalo-Nenets Autonomous Okrug
  3. Russia
17recorded occurrences
Source · OpenStreetMap

Radioactivity

Physical

Hardness
123456789104.5 – 5.5/ 10 MOHS
  1. 1Talc
  2. 2Gypsum
  3. 3Calcite
  4. 4Fluorite
  5. 5Apatite
  6. 6Orthoclase
  7. 7Quartz
  8. 8Topaz
  9. 9Corundum
  10. 10Diamond
Colour
Dark brown (interior) · greenish yellow to red (exterior)

Crystallography

Cell parameters
a = 10.53 Å

Synonyms

  • Plumbopyrochlor

Classification

Dana
8th ed.

08.02.01.06

  • 08Multiple Oxides Containing Niobium, Tantalum or TitaniumClass
  • 08.02A2B2O6(O,OH,F)Type
  • 08.02.01Pyrochlore Group (Pyrochlore Subgroup; Nb>Ta;(Nb+Ta)>2(Ti)Group
  • 08.02.01.06Plumbopyrochlore (of Skorobogatova et al.)Species
CIM
—

18.1.25

  • 18Niobates and TantalatesClass
  • 18.1Niobates and tantalates containing neither rare earths nor UGroup
  • 18.1.25Plumbopyrochlore (of Skorobogatova et al.)Species

Literature, links & citation

Citations
  1. 1966Skorobogatova, N.V., Sidorenko, G.A., Dorofeeva, K.A. and Stolyarova, T.I. (1966) Plumbopyrochlore. Geologiya Mestorozhdenii Redkikh Elementov, 30, 84-95 (in Rus.).
  2. 1977Hogarth, D. D. (1977) Classification and nomenclature of the pyrochlore group. American Mineralogist, 62 (5-6) 403-410
  3. 1986Voloshin, A.V. and Pakhomovskiy, Ya.A. (1986) Minerals and mineral formation evolution in amazonite pegmatites of Kola peninsula, - Leningrad, Nauka, 168 pp.
  4. 1992Kartashov P.M., Voloshin A.V., Pakhomovsky Ya.A. (1992) On plumbopyrochlore from Western Mongólia. Doklady Akademii Nauk SSSR, 322, p. 1137-1140. (in Rus.).
Cite this entry
@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Plumbopyrochlore (of Skorobogatova et al.) — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/plumbopyrochlore-of-skorobogatova-et-al-3228},
  note      = {Accessed 2026-05-11}
}