Wisconsin Geological & Natural History Survey » Copper

Major copper deposits occur in the Upper Peninsula of Michigan in Keweenawan basaltic lava and interlayered sediments formed approximately a billion years ago Similar but much smaller deposits are known where these rocks extend into Wisconsin through Bayfield, Washburn, Douglas and ,...

Exploratory drilling begins for copper mine under ,

Feb 07, 2017· Copper ore called chalcocite was discovered there in 1956 , In 2016, the Empire Mine closed, leaving the neighboring Tilden mine as Michigan's last operating iron ore mine...

Highland Copper Company Inc, Copper Price, Mining, Michigan

Highland Copper Company Inc is a Canadian copper development company focused on advancing sediment-hosted copper projects in the Copper Range District of the Upper Peninsula of Michigan, USA The Copper Range district is well known for hosting significant concentrations of copper and silver in numerous deposits...

Mindat Mineralogy Messageboard

What we always did in Michigan after we cleaned our copper was to dip the pieces in something called "Copper Brite", which is a mixture of chromic acid and other chemicals What this does is put a real thin coating on the specimen to keep it from oxidizing again...

Copper Ores

Dioptase, a copper silicate ore, (CuSiO2(OH)2) on a white matrix from the type locality of Altyn Tyube, Kazakstan Size 29 x 22mm (Hydrated copper silicate CuSiO 2 (OH) 2 ) ...

Copper I - Michigan State University

In summary, the ore deposits of the Michigan Copper District are of two basic types that differ in mineralogy, host rock type, and possibly in origin Furthermore, they are separated from one another both geographically and stratigraphically...

Medium Copper Ore Decorators with Copper Michigan [CO-MD ,

Keweenaw Gem & Gift Medium Copper Ore Decorators with Copper Michigan [CO-MD] - Copper ore decorator end cuts Native copper with interesting rock formations occurs in veins, spots, streaks or large masses mixed with the rock matrix The color of the rock may be solid or a mixture of red conglomerate, green epidote, white quartz, or...

Mineral Specimens from Michigan Gallery M&W Minerals

Minerals from Michigan Gallery Go here for other minerals from the United States at the Minerals from the United States Gallery click on the title link or photo to proceed to a specimen's page A 6217 Adularia , Lake Superior Copper District, Michigan, USA 16 x 5 x 3 cm $150 D...

Copper Ore Decorator [COP-ORE-DEC-01] - $14000 : Keweenaw ,

Copper ore decorator end cut with green Epidote Native copper with interesting rock formations occurs in veins, spots, streaks or large masses mixed with the rock matrix The copper ore is discovered in Michigan's Keweenaw Peninsula...

Copper Ore Decorator - Keweenaw Gem & Gift, Michigan's ,

Copper ore decorator end cut with Whte Quartz and Basalt Native copper with interesting rock formations occurs in veins, spots, streaks or large masses mixed with the rock matrix The copper ore is discovered in Michigan's Keweenaw Peninsula...

Copper Mineral Specimens Gallery M&W Minerals

Lake Superior Copper District, Michigan, USA 16 x 5 x 3 cm $150 6049 Datolite with Epidote and Native Copper Ridge Mine, Ontonagon Co, Michigan 42 x 17 x 1 cm $50 2925 Datolite, Copper, Microcline, and Epidote , M&W Minerals All prices are in US dollars...

Copper deposits of the western Upper Peninsula of Michigan

Copper deposits of the western Upper Peninsula of Michigan 85 fl d024-05 1st pgs page 85 copper districts host stratiform/stratabound copper deposits in...

Native copper - Wikipedia

Native copper was an important ore of copper in historic times and was used by pre-historic peopl Native copper occurs rarely as isometric cubic and octahedral crystals, but more typically as irregular masses and fracture fillings ...

Collecting Copper in Michigan's Copper Country - Where to ,

The Keweenaw Peninsula of Michigan has been nationally famous for over 100 years for its history of highly productive copper mining The local basalt is criss-crossed with many thick veins of native copper that made up the main ore of many of the min...

Splash Copper - Copper Float - Copper Ore - Pinterest

Splash Copper is Michigan's native molten copper, pored or splashed onto a flat surface , Fossils - Splash Copper - Copper Float - Copper Ore Collection by Tetra Seed Bead , Copper Ore Specimens Native Copper Matrix Shinny Fossil Freeform Cabochon Moss Agate Wire ,...

Michigan Copper Ore - Native American Indian Store

Michigan Copper Ore For Sale Find Michigan Copper Ore In Stock Now...

Michigan's coolest rocks and where to find them - freep

Watch video· Michigan was the nation's largest producer of copper from 1847 to 1877, according to Michigan State University The copper ore-rich rocks lived in rock layers deep in Lake Superior...

Copper from SpiritRock Shop

The copper is extremely well crystallized with a number of small but distinct cubic crystals We were told by the previous owner that it came from Arizona many years ago Bright native copper in matrix with Epidote from the Caledonia Mine in Michigan...

#C2 Copper Crystal Spearing Thru Two Pieces of Matrix ,

Product Description #C2 Copper Crystal Spearing Thru Two Pieces of Matrix, Michigan Upper Peninsula Beautiful display piece Made by Mother Nature...

Old Copper Culture | Milwaukee Public Museum

Old Copper Culture Introduction The Old Copper Complex, also known as the Old Copper Culture, refers to the items made by early inhabitants of the Great Lakes region during a period that spans several thousand years and covers several thousand square mil , Michigan, as he describes the ore deposits in this region "Around the Victoria ....

silverroom - The Mineral Gallery and Auction

Exceptional Native Silver wires with Acanthite crystals and on Silver matrix! This is a MAJOR Native Silver and one of the finest I've ever seen from the Hongda Mine! First of ,...

Keweenaw Michigan field trip - Mineralogical Society of ,

virtual field trip to the keweenaw peninsula, michigan - ore formation The formation of the native copper ores is not completely understood The fact that it is a relatively unique deposit of a very large size makes the understanding of the ore formation processes problematic...

Gogebic and Others: Mining History: Mine Shafts of Michigan:

Mining History: Mine Shafts of Michigan Part 4 Mine shafts in Michigan varied in depth from about 100 feet to over 3,000 feet for iron mines, the shafts usually being vertical Copper Mines were often deeper, with some shafts being over a mile deep vertically...

Dwarves' Earth Treasures by Jeffrey Anderson Agates and ,

Datolite almost always come in the form of crystals, and there is only two places in the world where the datolites come in form of porcelianlike solid nodules; the copper ore regions of the Upper Peninsula of Michigan and Northern Shore of Minnesota...

Gallery of native element minerals for sale: native gold ,

Below is a gallery of Native Element mineral specimens for sale from John Betts - Fine Minerals in New York City, NY Native elements are naturally occurring mineral specimens of pure elements Included in this group are native elements for sale of native gold, native silver, native copper, native lead, native arsenic, bismuth, sulfur, platinum, antimony, diamonds, and graphite...

Michigan Copper in the Mediterranean - Graham Hancock ,

The Shipping of Michigan Copper across the Atlantic in the Bronze Age (Isle Royale and Keweenaw Peninsula, c 2400BC-1200 BC) Summary Recent scientific literature has come to the conclusion that the major source of the copper that swept through the European Bronze Age after 2500 BC is unknown...

Amygdaloid Copper Ore Bookends Michigan Mineral Mining ,

AMYGDALOID COPPER ORE Bookends Michigan Mineral Mining Specimen - $5500 Amygdaloid Copper Ore Bookends A gorgeous set of bookends made from an ore showing copper areas throughout the ore This piece has green and brown basalt with accents of copper and dark green epidote An easy way to display piece of Michigan's copper mining history...

Rock Collecting Tour of the Western Upper Peninsula of ,

Rock Collecting Tour of the Western Upper Peninsula of Michigan - "The Copper Country" You are now heading for the Upper Peninsula of Michigan's world famous "Copper Country", the Keweenaw Peninsula...

DEQ - Mining - michigangov

Mining Michigan has a long history of mining that goes back to prehistoric time Recent updates to regulatory and revenue structures have improved the effectiveness and transparency of the state's approach to mining operations...

Michigan Iron Mines

the Lake Superior region and the copper deposits of Michigan's Keweenaw Peninsula The rock units that record the story of Michigan iron are the Precambrian rocks in the immediate vicinity of Lake , Michigan iron ore is found as isolated masses in a Huronian rock called iron formation Iron formation is a...