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Regional Report: Middlesex Co., Connecticut, USA

For full locality listing click here. Alternatively: Click here for heirarchical list of localities in Middlesex Co., Connecticut, USA

  • Acanthite - 25
  • 'Achroite' - 14, 13
  • Actinolite - 14, 40, 17, 36, 49, 15, 35, 22, 43, 47, 48
  • Albite - 14, 40, 17, 36, 46, 41, 49, 19, 6, 3, 18, 15, 29, 35, 39, 1, 43, 32, 9, 7
  • 'Allanite' - 17, 46, 19, 32, 42
  • Allanite-(Ce) - 40, 1
  • Alleghanyite - 22
  • Almandine - 14, 40, 46, 41, 21, 49, 19, 6, 38, 18, 15, 29, 35, 39, 43, 32, 7
  • 'Amazonite' - 20, 1
  • Amblygonite - 40
  • 'Amethyst' - 17
  • Anatase - 40
  • Anglesite - 40, 25
  • Annabergite - 15
  • Annite - 27
  • 'Apatite' - 3
  • Apatite-(CaF) - 14, 40, 36, 46, 41, 49, 19, 6, 18, 15, 29, 22, 39, 1, 43, 7
  • 'Aquamarine' - 14, 40, 46, 6, 35
  • Aragonite - 40, 17, 35
  • Arrojadite-(KFe) - 13
  • Arsenolite - 40, 15, 39
  • Arsenopyrite - 40, 17, 49, 18, 15, 39, 45, 1
  • Augelite - 40, 31
  • Augite - 32
  • Aurichalcite - 25
  • Autunite - 34, 40, 36, 46, 49, 6, 18, 26, 29, 22, 1, 43, 9
  • 'Axinite' - 14
  • Babingtonite - 3, 12
  • 'Bastnäsite' - 32
  • Bavenite - 40, 36, 3, 20
  • Becquerelite - 34, 16
  • Bementite - 22
  • Beraunite - 13
  • Bertrandite - 40, 36, 41, 3, 20, 43
  • Beryl - 14, 34, 40, 36, 46, 41, 21, 49, 19, 6, 38, 18, 29, 30, 20, 39, 45, 1, 43, 9, 7
  • Beyerite - 13
  • Biotite - 14, 40, 36, 49, 19, 6, 18, 15, 29, 35, 39, 1, 43, 32, 42, 50, 7
  • Bismite - 40, 6
  • Bismuthinite - 14, 40, 49, 6, 3, 29, 20
  • Bismutite - 40, 17, 6, 29
  • Bismutoferrite - 6
  • Bityite - 40
  • Brazilianite - 40
  • Breithauptite - 15
  • Calcite - 14, 40, 35, 25, 43, 48
  • 'Calyptolite' - 17
  • Cassiterite - 14, 40, 41
  • Cerite-(Ce) - 13
  • Cerussite - 26, 25
  • 'Chabazite' - 17, 16, 12, 11
  • Chalcopyrite - 40, 49, 6, 18, 15, 39, 1, 25, 43, 32, 37
  • 'Chloanthite' - 15
  • 'Chlorite Group' - 40, 15
  • Chlorophyllite - 17
  • Chrysoberyl - 14, 17
  • Chrysocolla - 25
  • Chrysotile - 40
  • 'Citrine' - 40, 17
  • Claudetite - 26
  • 'Cleavelandite' - 46, 41, 35
  • Clinozoisite - 40
  • Cobaltite - 15
  • Columbite - 17, 41, 19, 29, 43, 7
  • Columbite-(Fe) - 14, 34, 40, 36, 49, 6, 18, 30, 39, 1, 27
  • Cookeite - 14, 40
  • Cordierite - 40, 17, 3, 15, 35, 42
  • Covellite - 45
  • Crandallite - 40
  • Cummingtonite - 17, 28
  • Cuprobismutite - 6
  • 'Cyrtolite' - 40, 36, 49, 6, 18, 29, 39, 1, 43
  • 'Danaite' - 15
  • Diadochite - 39
  • Dickinsonite-(KMnNa) - 40
  • Diopside - 14, 40, 36, 49, 15, 35, 43, 48
  • Dolomite - 14, 17
  • Dravite - 3, 45
  • Elbaite - 14, 40, 46, 41, 49, 33, 20
  • Eosphorite - 40
  • Epidote - 31, 17, 19, 6, 47, 2
  • Epsomite - 40
  • Erythrite - 15
  • Eucryptite - 40
  • Euxenite-(Y) - 31
  • 'Fahlunite' - 42
  • Fairfieldite - 40
  • Ferrimolybdite - 18, 1
  • Ferrisicklerite - 39
  • Ferritungstite - 13
  • 'Ferruginous Quartz' - 9
  • 'Flint' - 17
  • Fluorite - 14, 40, 36, 49, 35, 20, 25, 43
  • Fourmarierite - 16
  • Gahnite - 40, 17, 15, 42
  • Galena - 40, 15, 39, 25, 37
  • 'Garnet Group' - 17, 28
  • Gersdorffite - 15
  • Goethite - 14, 40, 6, 15, 39
  • Gold - 15
  • Gonnardite - 16, 11
  • 'Goshenite' - 14
  • Graftonite - 34, 16
  • Graphite - 14, 40
  • Grayite - 41
  • Greenockite - 40, 25
  • Grossular - 14, 40, 17, 36, 49, 15, 35, 48
  • 'Gummite' - 6, 26
  • Gypsum - 14, 40, 32
  • Halloysite - 31
  • 'Heliodor' - 36, 41, 6, 7
  • Hematite - 14, 40, 19
  • Hemimorphite - 25
  • Herderite - 39
  • Heterosite - 18, 39, 13, 1
  • Hexahydrite - 31
  • 'Hornblende' - 19, 6, 15, 29
  • Hureaulite - 40
  • Hydroxylherderite - 39
  • Hydrozincite - 25
  • Ilmenite - 40, 49, 48
  • 'Indicolite' - 5
  • Ishikawaite - 27
  • Ixiolite - 41
  • Jacobsite - 22
  • Jarosite - 13
  • Johannite - 49
  • 'K Feldspar' - 4
  • Kaolinite - 40, 36, 49, 15, 32
  • 'Kunzite' - 40, 46
  • Kutnohorite - 22
  • Kyanite - 14, 40, 49, 44
  • 'Labradorite' - 32
  • Lacroixite - 40
  • 'Lanthanite' - 32
  • Laueite - 39
  • Lepidolite - 14, 40, 46, 41, 49, 35, 43
  • Liandratite - 6
  • Limonite - 40, 49, 19, 6, 18, 15, 29, 39, 1, 25, 43, 32
  • Linarite - 26
  • Litharge - 26
  • Lithiophilite - 40, 31
  • Ludlamite - 39
  • Maghemite - 17
  • Magnetite - 14, 40, 17, 19, 3, 29, 32, 42
  • Malachite - 19, 39, 25
  • 'Manganese Dendrites' - 6
  • Manganite - 40, 46
  • Manganocummingtonite - 17, 22
  • Marcasite - 45, 25
  • Massicot - 26
  • Melanterite - 40, 36, 18, 15, 39, 1, 32
  • Messelite - 39
  • Meta-autunite - 34, 40
  • Microcline - 14, 34, 40, 17, 36, 46, 41, 49, 19, 6, 18, 15, 29, 35, 20, 39, 1, 43, 32, 7, 27
  • Microlite - 14, 40, 46, 41, 49, 19, 20
  • 'Milky Quartz' - 40, 6
  • Mimetite - 25
  • Minium - 26
  • Mitridatite - 40, 41, 39
  • 'Mn-bearing Apatite-(CaF)' - 40, 46, 6, 32
  • Molybdenite - 14, 40, 17, 49, 3, 18, 1, 32, 48
  • 'Monazite' - 36, 49, 19, 29
  • Monazite-(Ce) - 40, 6, 3, 18, 1
  • Montebrasite - 40, 46
  • Montmorillonite - 14, 40, 18, 1
  • Moraesite - 13
  • 'Morganite' - 14, 40, 41
  • Morinite - 40
  • Muscovite - 14, 34, 40, 36, 46, 41, 49, 19, 6, 38, 18, 15, 29, 35, 39, 1, 43, 32, 9, 7, 4, 27
  • Natrolite - 16, 11
  • Natromontebrasite - 40
  • Nickeline - 15
  • Nickelskutterudite - 24
  • 'Oligoclase' - 14, 40, 32, 42
  • 'Olivine' - 32
  • Opal - 36, 19, 6, 15
  • 'Opal-AN' - 40, 49, 6, 15
  • Orthoclase - 14, 40, 6, 15
  • Oxy-Dravite - 17
  • Palermoite - 39
  • Parsonsite - 31
  • Parvowinchite - 17
  • 'Perthite' - 6
  • Petalite - 40
  • Petscheckite - 6
  • Phenakite - 40
  • Phlogopite - 14, 40
  • Phosphuranylite - 34, 6
  • Pickeringite - 40, 15, 35, 39, 32
  • 'Pinite' - 31, 35
  • Pitticite - 15, 13
  • Planerite - 40
  • Pollucite - 40, 46, 20
  • Powellite - 3, 13
  • Prehnite - 49, 12
  • 'Prochlorite' - 40
  • Pucherite - 17
  • Purpurite - 40
  • Pyrite - 14, 40, 36, 49, 19, 6, 18, 15, 35, 39, 1, 25, 43
  • Pyrochlore - 14, 40, 36, 49, 18
  • Pyrolusite - 14, 40, 46, 49, 6, 18, 15, 39, 1
  • Pyromorphite - 25
  • Pyrophanite - 17, 22
  • Pyrrhotite - 14, 40, 36, 18, 15, 39, 1, 43
  • Quartz - 14, 34, 40, 31, 17, 36, 41, 49, 19, 6, 38, 18, 15, 29, 35, 20, 39, 1, 25, 43, 32, 9, 7, 48, 2, 27
  • Rammelsbergite - 13
  • Reddingite - 40
  • Rhodochrosite - 40
  • Rhodonite - 40, 17, 49, 22
  • 'Rock Crystal' - 40, 35, 37
  • Rockbridgeite - 13
  • Roscherite - 39
  • 'Rose Quartz' - 40, 18, 1, 9
  • 'Rubellite' - 40, 46, 49, 35
  • Safflorite - 13
  • Samarskite-(Y) - 40, 36, 49, 19, 6, 29
  • 'Scapolite' - 40, 31, 35, 2
  • Scheelite - 14, 40, 36, 49, 32, 50
  • 'Schernikite' - 14
  • Schorl - 14, 40, 17, 36, 46, 41, 21, 49, 19, 6, 38, 33, 15, 29, 35, 39, 1, 32, 42, 9, 7, 44
  • Scorodite - 40, 15, 39
  • Scorzalite - 16
  • 'Sericite' - 15
  • Siderite - 40, 15, 39, 32
  • Sillimanite - 8, 14, 17, 15, 32, 44
  • Silver - 24
  • Skutterudite - 15
  • 'Smaltite' - 15
  • Smithsonite - 39, 25
  • 'Smoky Quartz' - 14, 40, 6, 35, 20
  • Spessartine - 14, 40, 17, 36, 41, 49, 19, 6, 38, 18, 29, 20, 22, 1, 7
  • Sphalerite - 14, 40, 17, 49, 18, 15, 39, 1, 25, 43, 32, 37
  • Spodumene - 14, 40, 46, 49
  • Staurolite - 15, 44
  • Stewartite - 31
  • 'Stilbite' - 17, 16, 11
  • Stilpnomelane - 8
  • Strunzite - 39
  • 'Strüverite' - 36
  • Sulphur - 40, 46
  • Tantalite - 14, 40, 36, 6, 3, 18, 29, 1, 43
  • Tantalite-(Mn) - 40, 46, 41
  • 'Tapiolite' - 18
  • Tephroite - 17, 22
  • Thorogummite - 6
  • 'Thulite' - 47
  • Titanite - 14, 40, 31, 17, 36, 22, 48, 2
  • Topaz - 14, 40, 49, 20
  • Torbernite - 34, 40, 17, 49, 6, 18, 29, 1, 43, 9
  • 'Tourmaline' - 14, 19, 18, 43
  • Tremolite - 36
  • Triphylite - 39, 1
  • Triplite - 40, 41
  • Uraninite - 14, 34, 40, 17, 36, 49, 6, 18, 26, 29, 22, 45, 1, 43, 9, 7
  • Uranmicrolite - 36
  • Uranophane - 14, 34, 40, 36, 49, 6, 18, 29, 1, 43, 9
  • Uranpyrochlore - 6
  • Vandendriesscheite - 16
  • 'Verdelite' - 40, 49, 35
  • Vesuvianite - 14, 40, 17, 49
  • Vivianite - 40, 39
  • 'Voltzite' - 40, 15, 25
  • Wardite - 40
  • Whitmoreite - 39, 13
  • Wodginite - 40
  • Wollastonite - 40
  • Xanthoxenite - 39
  • Xenotime-(Y) - 40, 29, 35, 1
  • Yttrocolumbite-(Y) - 9
  • Zinnwaldite - 40
  • Zircon - 34, 40, 17, 46, 6, 18, 45, 1
  • Zoisite - 40, 35, 47
  • β-Uranophane - 16


    • 273 minerals listed.

    Locality Key
    1Andrews Quarry, Portland, Middlesex Co., Connecticut, USA
    2Appletree Lane, Portland, Middlesex Co., Connecticut, USA
    3Beaver Meadow Road exit off Route 9, Haddam, Middlesex Co., Connecticut, USA
    4Bordonaro Quarry, Portland, Middlesex Co., Connecticut, USA
    5Brainerd Quarry, Haddam Neck, Haddam, Middlesex Co., Connecticut, USA
    6Case beryl prospects (Case quarries), Portland, Middlesex Co., Connecticut, USA
    7CCC Quarry, Haddam, Middlesex Co., Connecticut, USA
    8Chester, Middlesex Co., Connecticut, USA
    9Clark Hill Quarry (Nathan Hall Quarry), East Hampton, Middlesex Co., Connecticut, USA
    10Collins Hill, Portland, Middlesex Co., Connecticut, USA
    11Connecticut Yankee atomic power plant, Haddam Neck, Haddam, Middlesex Co., Connecticut, USA
    12Durham, Middlesex Co., Connecticut, USA
    13East Hampton, Middlesex Co., Connecticut, USA
    14Gillette Quarry, Haddam Neck, Haddam, Middlesex Co., Connecticut, USA
    15Great Hill cobalt mines, East Hampton, Middlesex Co., Connecticut, USA
    16Haddam Neck, Haddam, Middlesex Co., Connecticut, USA
    17Haddam, Middlesex Co., Connecticut, USA
    18Hale Quarry, Portland, Middlesex Co., Connecticut, USA
    19Hale Walker quarry, Collins Hill, Portland, Middlesex Co., Connecticut, USA
    20Hewitt Gem Quarry (Herb's Gem Quarry; Old Saw Mill Quarry), Long Hill, Haddam, Middlesex Co., Connecticut, USA
    21Hurd State Park quarry, East Hampton, Middlesex Co., Connecticut, USA
    22Jail Hill Road locality (Jail Hill Quarry), Haddam, Middlesex Co., Connecticut, USA
    23Long Hill, Haddam, Middlesex Co., Connecticut, USA
    24Middlesex Co., Connecticut, USA
    25Middletown lead mines (Middletown Mine), Middletown, Middlesex Co., Connecticut, USA
    26Middletown, Middlesex Co., Connecticut, USA
    27Oak Leaf Pegmatite, Middlesex Co., Connecticut, USA
    28Old garnet mine, Haddam, Middlesex Co., Connecticut, USA
    29Pelton's Quarry, Portland, Middlesex Co., Connecticut, USA
    30Penfield Quarry, Portland, Middlesex Co., Connecticut, USA
    31Portland, Middlesex Co., Connecticut, USA
    32Railroad cut locality, East Hampton, Middlesex Co., Connecticut, USA
    33Riverside Quarry, Middletown, Middlesex Co., Connecticut, USA
    34Rock Landing quarry, East Hampton, Middlesex Co., Connecticut, USA
    35Schoonmaker Mine (Cramer Mine), Collins Hill, Portland, Middlesex Co., Connecticut, USA
    36Slocum Quarry, East Hampton, Middlesex Co., Connecticut, USA
    37State Farm Quarry, Middletown, Middlesex Co., Connecticut, USA
    38State Forest Quarry no. 1, East Hampton, Middlesex Co., Connecticut, USA
    39State Forest Quarry no. 2, East Hampton, Middlesex Co., Connecticut, USA
    40Strickland Quarry, Collins Hill, Portland, Middlesex Co., Connecticut, USA
    41Swanson Quarry, East Hampton, Middlesex Co., Connecticut, USA
    42Timms Hill, Haddam, Middlesex Co., Connecticut, USA
    43Tollgate Mine (Toll Gate Quarry), Middletown, Middlesex Co., Connecticut, USA
    44Unnamed Building Stone quarry, Collins Hill, Portland, Middlesex Co., Connecticut, USA
    45Vespa stone quarry, East Hampton, Middlesex Co., Connecticut, USA
    46Walden Gem Quarry (Gotta-Walden prospect), Portland, Middlesex Co., Connecticut, USA
    47Walkley Hill, Haddam, Middlesex Co., Connecticut, USA
    48Waterfall, Collins Hill, Portland, Middlesex Co., Connecticut, USA
    49White Rock quarries, Middletown, Middlesex Co., Connecticut, USA
    50Worth Quarry, Hog Hill, East Hampton, Middlesex Co., Connecticut, USA

    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 Ralph and Ida Chau 1993-2009. 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. Current server date and time: 29th Nov 2009 02:35:50