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Great Hill cobalt mines, East Hampton, Middlesex Co., Connecticut, USA

Old cobalt mines in state forest, first worked in 1762. Ref.(in part): AmMin 6:88-90 (1921).





Mineral List:
  		•  Actinolite
  		• Albite
  		• Almandine
  		• Annabergite
  		• Apatite-(CaF)
  		• Arsenolite
  		• Arsenopyrite
       var: Danaite
  		• Biotite
  		• Breithauptite
  		• Chalcopyrite
  		• 'Chlorite Group'
  		• Cobaltite
  		• Cordierite
  		• Diopside
  		• Erythrite
  		• Gahnite
  		• Galena
  		• Gersdorffite
  		• Goethite
  		• Gold ?
  		• Grossular
  		• 'Hornblende'
  		• Kaolinite
  		• Limonite
  		• Melanterite
  		• Microcline
  		• Muscovite
  		• Nickeline
  		• Nickelskutterudite
    var: Chloanthite ?
  		• Opal
       var: Opal-AN
  		• Orthoclase
  		• Pickeringite
  		• Pitticite ?
  		• Pyrite
  		• Pyrolusite
  		• Pyrrhotite
  		• Quartz
  		• Schorl
  		• Scorodite
  		• 'Sericite'
  		• Siderite
  		• Sillimanite
  		• Skutterudite
       var: Smaltite
  		• Sphalerite
  		• Staurolite
  		• 'Voltzite' ?


    49 entries listed. 38 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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    Copyright © Jolyon & Ida Ralph 1993-2008. Jobs in Connecticut, USA 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.