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  2. Ringing rocks - Wikipedia

    en.wikipedia.org/wiki/Ringing_rocks

    Ringing Rocks County Park is a Bucks County park in Upper Black Eddy. [6] Originally, the land was acquired by the Penn family from the Lenape (Delaware Nation) through the infamous 1737 Walking Purchase. It is not clear who made the original land warrant for the area now covered by the Ringing Rocks County Park.

  3. Rupes Nigra - Wikipedia

    en.wikipedia.org/wiki/Rupes_Nigra

    The Rupes Nigra ("Black Rock"), a phantom island, was believed to be a black rock located at the Magnetic North Pole or at the geographic North Pole itself. Described by Gerardus Mercator as 33 French miles in size, it provided a supposed explanation for why all compasses point to this location. The idea came from a lost work titled Inventio ...

  4. Novaculite - Wikipedia

    en.wikipedia.org/wiki/Novaculite

    Novaculite, also called Arkansas Stone, is a microcrystalline to cryptocrystalline rock type that consists of silica in the form of chert or flint. It is commonly white to grey or black in color, with a specific gravity that ranges from 2.2 to 2.5. It is used in the production of sharpening stones. It occurs in parts of Arkansas, Oklahoma, and ...

  5. Lannon stone - Wikipedia

    en.wikipedia.org/wiki/Lannon_stone

    Lannon stone is a type of buff-colored, blocky, sedimentary Dolomite (rock), whose name is derived from Mr. William Lannon, one of the original settlers of the Village of Lannon, Wisconsin. Lannon stone can be found throughout the Niagara Escarpment, which runs underneath much of the Great Lakes. Lannon stone is known for its durability and is ...

  6. Geology of Massachusetts - Wikipedia

    en.wikipedia.org/wiki/Geology_of_Massachusetts

    Geology of Massachusetts. A geological map of the state, showing the north–south trend of the bedrock strata. The geology of Massachusetts includes numerous units of volcanic, intrusive igneous, metamorphic and sedimentary rocks formed within the last 1.2 billion years. The oldest formations are gneiss rocks in the Berkshires, which were ...

  7. Kalkajaka National Park - Wikipedia

    en.wikipedia.org/wiki/Kalkajaka_National_Park

    The park is 25 km south west of Cooktown. It is managed and protected as a national park under the Nature Conservation Act 1992. The main feature of the park is the mass of granite boulders, some the size of houses. The absence of soil between the boulders and rocks create a maze of gaps and passages, which can be used to penetrate inside the ...