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A variety of Perthite

A perthite with approximately equal amounts of alkali feldspar and plagioclase.

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Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Mesoperthite in petrologyHide

Internet Links for MesoperthiteHide

Localities for MesoperthiteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
  • Tamil Nadu
Yuki Nishimiya, Toshiaki Tsunogae (2018) FIB-TEM analysis of ultrahigh-temperature sapphirine + quartz granulite from southern India:
  • Nordland
    • Vågan
      • Austvågøya
Ormaasen, D.E. (1977): Petrology of the Hopen mangerite-charnockite intrusion, Lofoten, north Norway. Lithos. 10, 291-310.
  • Rogaland
    • Bjerkreim
      • Vikeså
Laurent, A. (2016) Petrochronology of monazite and zircon in ultra-high temperature granulite from Rogaland, Norway. Earth Sciences. Université Paul Sabatier - Toulouse III, 2016. English
Maijer, C.; Jansen, J. B. H.; Wevers, J. & Poorter, R. P. E. (1977): Contribution to the mineralogy of Norway, no 63. Osumilite, a new mineral to Norway. Norsk Geologisk Tidsskrift 57 (2), 187-188
Mineral and/or Locality  
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