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UNIQUE LARGE Native Copper Crystal KEWEENAW, MICHIGAN - Ex. Levy, Conklin




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Reference Number: Avaluer:4393306Modified Item: No


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    Classic Native Copper Crystal Keweenaw, Michigan
    MineralMan999 Native CopperKeweenaw Co., Michigan, USA7.6cm x 7.6cm x 4.34cm DescriptionInteresting Notes: A fantastic, old time example of native copper from this classic Michigan locale This specimen hosts a group of large, robust, complexly modified crystals of native copper prominently set atop some characteristic matrix The native copper crystals exhibit sharply defined details with a gorgeous, multihued "antique" patina The crystals are in fantastic condition and the specimen displays magn...
    Blocky Native Copper Crystals: Keweenaw Peninsula, Michigan, Usa - Classic
    For your consideration is this very nice group of blocky dodecahedral copper crystals to 2.5 cm. on a "stalk" of wiry copper from the Lake Superior Copper District, Keweenaw County, Michigan.This is a 'dump collected' piece, but still shows a nice patina and fairly sharp crystals for having been out in the elements for 100 years. The crystals show the simple dodecahedron form quite nicely. Classic Specimen Dimensions: 4.5 x 3 x 1.8 cm. Weight: 84 grams
    Well - Formed Native Copper Crystals: Keweenaw Peninsula, Michigan - Classic
    For your consideration is this very nice specimen of blocky dodecahedral native copper crystals from the Lake Superior Copper District, Keweenaw Peninsula, Michigan. A very nice miniature size copper crystal specimen, better in person. Classic Specimen Dimensions: 5 x 3.5 x 3 cm. Weight: 56 grams
    Unique Cubic Native Copper Crystals With Calcite Ogonja, Namibia
    MineralMan999 Native Copper with CalciteOnganja Mine, Helen Farm 235, Onganja mining area, Seeis, Windhoek Rural, Khomas Region, Namibia4.1cm x 2.7cm x 2.1cm DescriptionInteresting Notes: A fantastic example of native copper from Namibia This specimen consists of a complex group of native copper crystals that exhibit sharp, cubic forms as well as a few scattered crystals of calcite that are partially included with cuprite var. chalcotrichite This specimen displays terrifically all around The pic...
    Unique Native Copper Crystal Northwestern Mine, Michigan - Ex. Mcloughlin
    MineralMan999 Native CopperNorthwestern Mine, Central, Keweenaw Co., Michigan, USA3.5cm x 2.5cm x 1.9cmEx. Gerry McLoughlin Collection DescriptionInteresting Notes: A unique example of native copper from this classic Michigan locale This specimen consists of a complex group of spinel-twin crystals of native copper This specimen is much more well defined in person and exhibits a handsome metallic sheen and patina This specimen is from the collection of Gerry McLoughlin and retains its original la...
    7. 5 " Native Copper Nugget - Keweenaw Peninsula, Michigan - 4. 4 Lbs.
    br Copper Nugget Size:7.5" x 5.4" x .9"Weight:4 lbs 7.1 ozLocation:Keweenaw Peninsula, Michigan 7.5" Native Copper Nugget from Michigan. A fantastic copper nugget formation rich in golden copper color. A natural formation lightly tumbled to remove outer matrix and round the rough edges of the copper. Piece weighs over 4 13 lbs. Michigan's Keweenaw Peninsula is the most important locality in the world for pure native copper. Mining began in 1845 and continued until 1968 and over 5 million tons of...
    6. 9 " Native Copper Nugget - Keweenaw Peninsula, Michigan - 2. 2 Lbs.
    br Copper Nugget Size:6.9" x 4.2" x .7"Weight:2 lbs 3.7 ozLocation:Keweenaw Peninsula, Michigan 6.9" Native Copper Nugget from Michigan. A fantastic copper nugget formation rich in golden copper color. A natural formation lightly tumbled to remove outer matrix and round the rough edges of the copper. Piece weighs over 2 lbs. Michigan's Keweenaw Peninsula is the most important locality in the world for pure native copper. Mining began in 1845 and continued until 1968 and over 5 million tons of re...
    8. 2 " Native Copper Nugget - Keweenaw Peninsula, Michigan - 2 Lbs.
    br Copper Nugget Size:8.2" x 4.1" x .75"Weight:34.8 oz986 gramsLocation:Keweenaw Peninsula, Michigan 8.2" Native Copper Nugget from Michigan. A fantastic copper nugget formation rich in golden copper color. A natural formation lightly tumbled to remove outer matrix and round the rough edges of the copper. Piece weighs over 2 lbs. Michigan's Keweenaw Peninsula is the most important locality in the world for pure native copper. Mining began in 1845 and continued until 1968 and over 5 million tons ...

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