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Columbite-(Fe) from selected localities.

USA
 
  • California
    • San Diego County
      • Ramona Mining District
        • Ramona
Foord, Eugene E. et al (1989), Mineralogy and Paragenesis of the Little Three Mine Pegmatites, Ramona District, San Diego County, California. Mineralogical Record, 20(2): p. 106.
Foord, Eugene E. et al (1989), Mineralogy and Paragenesis of the Little Three Mine Pegmatites, Ramona District, San Diego County, California. Mineralogical Record, 20(2): p. 121.
 
Mineral and/or Locality  
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