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Ramco No. 20 Mine (Ramco No. 20 claim), Cameron area, Cameron District, Coconino Co., Arizona, USA

‡Ref.: Hinkley, D.N. (1955), Reconnaissance of the Cameron area, Coconino County, Arizona, US Atomic Energy Commission USAEC-RME-81.

Bollin & Kerr (1958), Guidebook for New Mexico Geological Society, 9th. Field Conference F.P.

Austin, S.R. (1964), Mineralogy of the Cameron area, Coconino County, Arizona, US Atomic Energy Commission RME 99, Technical Information Service, Oak Ridge, TN: 99.

Peirce, H.W., S.B. Keith and J.C.Wilt (1970), Coal, oil, natural gas, helium, and uranium in Arizona, Arizona Bureauof Mines Bull. 182: 118, 214-234.

Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 141.

A former U-Mo mine located in the USGS Wupatki NE quadrangle.

Mineralization is in lenses and pods. All orebodies in the area are surrounded by light brown to yellowish-brown alteration halos which cut across the normal purple and grey beds of host rock types. Sme control possible by fracturing a slight angle to the paleochannel. The ore fills intraformational chanels and scours within the upper 30 feet of the Shinarump member and the lower 60 feet of the Petrified Forest member.





Map Reference: 35°44'N , 111°17'W

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Mineral List:
  • Boltwoodite
  • Calcite
  • Carnotite
  • Gypsum
  • Jarosite
  • Kaolinite
  • Limonite
  • Montmorillonite
  • Quartz
  • Uraninite
  • Uranophane
  • Zippeite


    12 entries listed. 11 valid minerals.

    The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database!
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