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Knopite

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Formula:
(Ca,Ce,Na)(Ti,Fe)O3
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

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Chemical Properties of Knopite

Formula:
(Ca,Ce,Na)(Ti,Fe)O3
Essential elements:
All elements listed in formula:

Other Names for Knopite

Name in Other Languages:
German:Knopit
Spanish:Knopita

Other Information

Health Risks:
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

Localities for Knopite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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  
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