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  2. Eagle Diamond - Wikipedia

    en.wikipedia.org/wiki/Eagle_Diamond

    The Eagle Diamond is a gemstone discovered in Eagle, Wisconsin in 1876 that was about 16 carats. It was found on a hillside about 30 feet below the surface in glacial till while digging a well. [1] It was one of more than a dozen rare gems stolen in a heist from the American Museum of Natural History in 1964 and remains missing to this day. [2]

  3. List of U.S. state minerals, rocks, stones and gemstones

    en.wikipedia.org/wiki/List_of_U.S._state...

    In 1986, California named benitoite as its state gemstone, a form of the mineral barium titanium silicate that is unique to the Golden State and only found in gem quality in San Benito County. [ 80 ] ^ Colorado is the only state whose geological symbols reflect the national flag's colors: red (rhodochrosite), white (yule marble), and blue ...

  4. Mineral Point Hill - Wikipedia

    en.wikipedia.org/wiki/Mineral_Point_Hill

    Mineral Point Hill is a hill and former mining site in Mineral Point, Wisconsin, bounded by Wisconsin Highway 23, Shake Rag Street, Copper Street, and Dodge Street.It is the site of the 1825 discovery of lead ore in Mineral Point, which drew settlers to the region over the next decade.

  5. Flambeau Mine - Wikipedia

    en.wikipedia.org/wiki/Flambeau_Mine

    Flambeau Mine map. The Flambeau Mine was an open pit mine of a copper-gold deposit near the Flambeau River, south of Ladysmith, Wisconsin, United States. It was mined by a subsidiary of Kennecott Minerals between 1993 and 1997, and returned to a fairly natural state after. As of 2022, it was "the only example of a metallic mine that was ...

  6. Weis Earth Science Museum - Wikipedia

    en.wikipedia.org/wiki/Weis_Earth_Science_Museum

    Weis Earth Science Museum (abbreviated as WESM), located at 1478 Midway Rd, on the University of Wisconsin–Oshkosh, Fox Cities Campus in Menasha, Wisconsin, USA, was opened in 2002. It focuses on Wisconsin geology and its mining history.

  7. Cave of the Mounds - Wikipedia

    en.wikipedia.org/wiki/Cave_of_the_Mounds

    The cave is located 20 miles west of Madison, off U.S. Highways 18/151 in Blue Mounds, Wisconsin. Since its opening in 1940, the cave has hosted millions of tourists. Since its opening in 1940, the cave has hosted millions of tourists.

  8. Category:Mining in Wisconsin - Wikipedia

    en.wikipedia.org/wiki/Category:Mining_in_Wisconsin

    Mines in Wisconsin (2 P) Mining museums in Wisconsin (1 P) Pages in category "Mining in Wisconsin" The following 4 pages are in this category, out of 4 total.

  9. Lake Ellen Kimberlite - Wikipedia

    en.wikipedia.org/wiki/Lake_Ellen_Kimberlite

    The lake Ellen Kimberlite is popular with rock hounds as the classic indicator minerals (pyrope, magnesian ilmenite and chrome diopside) for kimberlite are easily found in the material, though few are of gem quality and size. While there was considerable interest in diamond exploration in Michigan's Upper Peninsula and northern Wisconsin for ...

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