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  2. Ever gone rockhounding near the Tri-Cities area? You ... - AOL

    www.aol.com/news/where-collect-fun-rocks-near...

    Rockhounding is allowed in many Bureau of Land Management areas with no permit required. Similarly, it allows for a reasonable amount, defined as up to 25 pounds a day and 250 pounds per year, of ...

  3. Marble Cliff Quarry Co. - Wikipedia

    en.wikipedia.org/wiki/Marble_Cliff_Quarry_Co.

    In 1985, the Kaufmans sold the 2,000-acre (8.1 km 2) quarry to investors who filled in and developed the quarry for residential use, including Marble Cliff Commons [6] [2] [3] apartments and Marble Cliff Crossing, a 100 single-family and 60 double-family subdivision built between 1998 and 2003. [7]

  4. Amateur geology - Wikipedia

    en.wikipedia.org/wiki/Amateur_geology

    Amateur geology or rock collecting (also referred to as rockhounding in the United States and Canada) is the non-professional study and hobby of collecting rocks and minerals or fossil specimens from the natural environment. [1] [2] In Australia, New Zealand and Cornwall, the amateur geologists call this activity fossicking. [3]

  5. Gold Prospectors Association of America - Wikipedia

    en.wikipedia.org/wiki/Gold_Prospectors...

    The Gold Prospectors Association of America (GPAA) is an organization dedicated to finding and mining gold on a small or recreational scale. [1] It has gold claims across America and members can work the claims for a yearly fee.

  6. Gone winter rockhounding in Washington state? You can find ...

    www.aol.com/gone-winter-rockhounding-washington...

    Rockhounding is permissible in many Bureau of Land Management areas with no permit required. Similarly, it allows for a reasonable amount, defined as up to 25 pounds a day and 250 pounds per year ...

  7. Ohio Department of Natural Resources - Wikipedia

    en.wikipedia.org/wiki/Ohio_Department_of_Natural...

    ODNR regulates Ohio's oil and gas industry, the mining industry, hunting and fishing, and dams while maintaining natural resources such as state parks, state nature preserves, state wildlife areas, state forests, and state waterways.

  8. Chat (mining) - Wikipedia

    en.wikipedia.org/wiki/Chat_(mining)

    Currently production still occurs in a third area, the Viburnum Trend, in southeastern Missouri. Mining and milling of ore produced more than 500 million tons of wastes in the tri-state area and about 250 million tons of wastes in the Old Lead Belt.

  9. Mineralogy of the Pikes Peak Region - Wikipedia

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

    Some of the best mineral collecting areas in Colorado can be found around the edges of these intrusive centers. When a new pulse of magma forced its way upward, the edges in contact with the older magma cooled rapidly forming a kind of "skin" of fine-grained granite.