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Old Mine Plaza, Trumbull, Fairfield Co., Connecticut, USA

Well-known construction site locality close to the Old Mine Park Tungsten Mine. Mineralization occurs in skarn just as it does in Old Mine Park. Excellent specimens of fluorescent scheelite are found here as well as occasional topaz, fluorite var. chlorophane and small emerald crystals in calcite pods in schist. Possibly the first known occurrence of this emerald formation.

Ref.(in part): Rocks & Minerals, May, 1998.





Mineral List:
  • Actinolite
  • Albite
  • Almandine
  • 'Amphibole Group'
  • Axinite-(Fe)
  • Azurite
  • Bavenite
  • Beryl
       var: Emerald
  • Bornite ?
  • Calcite
  • Chalcopyrite
  • 'Chlorite Group'
  • Clinozoisite
  • Cuprite
  • Diopside
  • Epidote
  • Epsomite ?
  • Ferberite ?
  • Fluorite
  • 'Garnet Group'
  • Grossular
  • Gypsum
  • Hedenbergite
  • 'Hornblende'
  • Hübnerite
  • Hydrotungstite ?
  • Lepidocrocite ?
  • Limonite
  • Magnetite
  • Malachite
  • Marcasite
  • Margarite
  • 'Margarodite'
  • 'Marialite-Meionite Series'
  • Melanterite
  • Microcline
  • Muscovite
  • Orthoclase
  • Pickeringite
  • Pyrite
  • Pyrolusite
  • Quartz
  • Rozenite
  • Scheelite
  • Schorl
  • Siderite
  • Sillimanite
  • Sphalerite
  • Stilbite-Ca
  • Topaz
  • Tremolite
  • Tungstenite
  • Tungstite
  • Wolframite
  • Zircon


    56 entries listed. 46 valid minerals. 1 erroneous literature entry.

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