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  2. Sioux Quartzite - Wikipedia

    en.wikipedia.org/wiki/Sioux_quartzite

    Sioux Quartzite at Falls Park, Sioux Falls, South Dakota Cross-bedding in the Sioux Quartzite, Blue Mounds State Park, Minnesota, United States.. The Sioux Quartzite is a Proterozoic quartzite that is found in the region around the intersection of Minnesota, South Dakota, and Iowa, and correlates with other rock units throughout the upper midwestern and southwestern United States.

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

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

    South Carolina [63] Blue granite (1969) Amethyst (1969) South Dakota [64] [65] Rose quartz (1966) Fairburn agate (1966) and State Jewelry: Black Hills Gold: Tennessee ...

  4. Mineralogy of the Pikes Peak Region - Wikipedia

    en.wikipedia.org/wiki/Mineralogy_of_the_Pikes...

    Devils Head is located about 33 miles (53 km) south-south west of Denver on the Rampart Range Road. Like the other localities, Devils Head is another intrusive center and it forms a prominent, 9,700 feet (3,000 m) peak whose pinnacles are easily visible from Denver.

  5. Rose quartz, raw minerals and amethyst geodes, oh my ... - AOL

    www.aol.com/news/rose-quartz-raw-minerals...

    Rose quartz, raw minerals and amethyst geodes, oh my! What’s new at Sacramento Gem Faire. Bailey Stover. August 3, 2024 at 12:00 AM. ... Naz Doost, co-owner of Zaza Gems, sorts beads during the ...

  6. List of archaeological sites in South Dakota - Wikipedia

    en.wikipedia.org/wiki/List_of_archaeological...

    Wessington Springs. Prehistoric Rock Art of South Dakota MPS. 39BE3. #93000802. Wolsey. Prehistoric Rock Art of South Dakota MPS. 39BE14. #84003199. Huron.

  7. Quartzite - Wikipedia

    en.wikipedia.org/wiki/Quartzite

    Quartzite. Quartzite is a hard, non- foliated metamorphic rock which was originally pure quartz sandstone. [1][2] Sandstone is converted into quartzite through heating and pressure usually related to tectonic compression within orogenic belts. Pure quartzite is usually white to grey, though quartzites often occur in various shades of pink and ...

  8. Great Sioux Reservation - Wikipedia

    en.wikipedia.org/wiki/Great_Sioux_Reservation

    Great Sioux Reservation. The Great Sioux Reservation is an Indian reservation created by the United States through treaty with the Sioux , principally the Lakota, who dominated the territory before its establishment. [1] In the Fort Laramie Treaty of 1868, the reservation included lands west of the Missouri River in South Dakota and Nebraska ...

  9. Rhodochrosite - Wikipedia

    en.wikipedia.org/wiki/Rhodochrosite

    Rhodochrosite is a manganese carbonate mineral with chemical composition MnCO 3. In its pure form (rare), it is typically a rose-red colour, [5] but it can also be shades of pink to pale brown. It streaks white, [6] and its Mohs hardness varies between 3.5 and 4.5. Its specific gravity is between 3.45 and 3.6. [7]

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