Mindat Logo
Home Page Log In Message Board The Mindat Directory
Register Search Pages Chat Now! (10 online) Mindat Auctions

Knopite

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

German names:
Knopit
Spanish names:
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 (1893), Geol. För. Forh.: 15: 588.

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.

Articles/Blogs about Knopite

Internet Links for Knopite

Search Engines:
  • Look for Knopite on Google
  • Look for Knopite images on Google
    • Mineral Dealers:
  • Find Knopite on www.crystalclassics.co.uk
  • The Arkenstone - Fine Minerals
  • Search for - Knopite - on e-Rocks Mineral Sales & Auctions
  • Buy fine minerals and gemstones from Pala International
  • High-end worldwide specimens & outstanding customer service
  • Search for Knopite on minvision.com
  • Top quality minerals from Kristalle of California
  • Lapis Mineral Magazin
  • Wright's Rock Shop - excellent mineral specimens since 1970
  • Buy Minerals and Crystals from Crystalarium.com
  • Rare and Unusual minerals at Mineralogical Research Company
  • Buy Fine Minerals from mineralsweb.com
    • Jobs:
  • Mining & Geology Jobs

    • Page Sponsor

    Sponsorship:This page is currently not sponsored. Click here to find out how you can sponsor this page.

    Localities for Knopite

    Hide Locality List
    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.
    These maps work faster with Firefox!
    (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 Complex
    		No reference listed
    Russia
     
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
          • Afrikanda
    		[World of Stones 95:5-6, 64]
    Sweden
     
    • Medelpad
      • Sundsvall
        • Alnö
    		Holmquist (1894) G.F.F. vol 16, pp. 73-95, original description; Clark, 1993 - "Hey's Mineral Index", 365
      • Timrå
    Mineral and/or Locality
    Google
     
    www.mindat.org Web
    Copyright © Jolyon & Ida Ralph 1993-2008. 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. If you would like to add information to improve the quality of our database, then click here to register.