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  2. List of quarries in the United States - Wikipedia

    en.wikipedia.org/wiki/List_of_quarries_in_the...

    Aberdeen Quarry, an abandoned granite quarry in Gunnison County, Colorado. Its granite was used in construction of the Colorado State Capitol; Marble, Colorado, only site of Yule Marble quarrying, in the West Elk Mountains. 99.5% pure calcite, discovered in 1873, source of marble for the Tomb of the Unknowns and for the exterior of the Lincoln ...

  3. Boulder Batholith - Wikipedia

    en.wikipedia.org/wiki/Boulder_Batholith

    Rounded brown-weathering boulders give the Boulder Batholith its name. The Boulder Batholith is a relatively small batholith in southwestern Montana, United States, exposed at the surface as granite (more specifically quartz monzonite) and serving as the host rock for rich mineralized deposits at Butte and other locations.

  4. Sierra Nevada Batholith - Wikipedia

    en.wikipedia.org/wiki/Sierra_Nevada_Batholith

    Fission tracks – destructive remnants of radioactive decay in Uranium-bearing minerals – were shorter than expected in samples taken from several Sierra Nevada plutons. This implied a late-Cenozoic residency at depth, meaning the unroofing and uplift of the Sierra Nevada block happened rapidly near the end of the Cenozoic.

  5. Stone Mountain (North Carolina) - Wikipedia

    en.wikipedia.org/wiki/Stone_Mountain_(North...

    Sample of the granodiorite. Scale bar in upper right is 1 cm. Stone Mountain is the centerpiece of Stone Mountain State Park in North Carolina. It is a dome of exposed granite (specifically a quartz diorite to granodiorite) of Devonian age, which has intruded into the gneiss of the Precambrian Alligator Back Formation. [1]

  6. North Carolina Granite Corporation Quarry Complex - Wikipedia

    en.wikipedia.org/wiki/North_Carolina_Granite...

    North Carolina Granite Corporation Quarry Complex is a historic granite quarry and national historic district located at Mount Airy, Surry County, North Carolina.The district encompasses 22 contributing buildings, 1 contributing site, and 8 contributing structures in an area approximately one mile long and 1/3 mile wide.

  7. Granite - Wikipedia

    en.wikipedia.org/wiki/Granite

    Granite (/ ˈ ɡ r æ n ɪ t / GRAN-it) is a coarse-grained intrusive igneous rock composed mostly of quartz, alkali feldspar, and plagioclase.It forms from magma with a high content of silica and alkali metal oxides that slowly cools and solidifies underground.

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