Mindat Logo
Home Page Log In Messageboard The Mindat Directory
Register Search Pages Mineral Chatroom The Mindat Store

Knopite

This page is currently not sponsored. Click here to sponsor this page.
Big Photo

Afrikanda Massif, Afrikanda, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia
© Pavel M. Kartashov

Show Knopite Photos (2)



Formula:
(Ca,Ce,Na)(Ti,Fe)O
 
3
Name:After A. Knop (1828-1893), German mineralogist who discovered the niobian variety of perovskite ('dysanalyte').
A variety of Perovskite

A variety of perovskite rich in cerium.
Originally described from Långörsholmen, Alnö, Sundsvall, Medelpad, Sweden.

Classification of Knopite

mindat.org URL:http://www.mindat.org/min-2228.html
Please feel free to link to this page.

Chemical Properties of Knopite

Formula:
(Ca,Ce,Na)(Ti,Fe)O
 
3
Essential elements:Ca, O, Ti
All elements listed in formula:Ca, Ce, Fe, Na, O, Ti

Other Names for Knopite

Other Languages:
German:Knopit
Spanish:Knopita

Other Information

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

References for Knopite

Reference List:

- +
Holmquist, P.J. (1894): Knopit, ett perowskit närstående, et nytt mineral från Alnön. Geologiska Föreningen i Stockholm Förhandlingar. 16 : 73-95.

Palache, Charles, Harry Berman & Clifford Frondel (1944), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Volume I: Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, Inc., New York. 7th edition, revised and enlarged: 730.

Internet Links for Knopite

Search Engines:
  • Look for Knopite on Google
  • Look for Knopite images on Google
    • Mineral Dealers:
  • The Arkenstone - Fine Minerals
  • rare and unusual minerals mainly crystallized
  • Fine and rare minerals from mintreasure.com
  • Search for minerals at Heliodor
  • Search for - Knopite - on e-Rocks Mineral Sales & Auctions
  • Find Knopite on www.crystalclassics.co.uk
  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
  • Buy from David K Joyce minerals
  • Buy fine minerals and gemstones from Pala International
  • Fabre Minerals - search for Knopite specimens
  • High-end worldwide specimens & outstanding customer service
  • DAKOTA MATRIX offers Cabinet and Rare Species from Worldwide Localities.
    • Jobs:
  • Mining & Geology Jobs

    • Localities for Knopite

    The 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.
    Hide Locality List
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Canada
     
    • British Columbia
      • Golden Mining Division
        • Ice River Alkaline Complex
    		Ellsworth, H. V., and Walker, J. F., Knopite and magnetite occurrence, Moose Creek, southeastern British Columtria: Canoda Geol. Survey, Summary Rept., Pt. A, 1925
    Russia
     
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
          • Afrikanda
    		[World of Stones 95:5-6, 64]
    Sweden
     
    • Medelpad
      • Sundsvall
        • Alnö
    		Holmquist, P.J. (1894): Knopit, ett perowskit närstående, et nytt mineral från Alnön. Geologiska Föreningen i Stockholm Förhandlingar. 16 : 73-95; Clark, 1993 - "Hey's Mineral Index", 365
      • Timrå
    Mineral and/or Locality
    Search Google
     
    Copyright © Jolyon Ralph and Ida Chau 1993-2013. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
    Current server date and time: 7th May 2013 11:20:51
    Mineral and Locality Search
    Mineral:
    and/or Locality:
    Options
    Fade toolbar when not in focusFix toolbar to bottom of page
    Hide Social Media Links
    Slideshow frame delay seconds