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

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

    In 1965, California became the first state to name an official state rock. A 2010 effort led by State Senator Gloria J. Romero, a Democrat from Los Angeles, sought to remove serpentine from its perch as the state's official stone.

  3. List of California state symbols - Wikipedia

    en.wikipedia.org/wiki/List_of_California_state...

    California red-legged frog Rana draytonii: 2014 [2] Animal: California grizzly bear Ursus arctos californicus: 1958 Bat: Pallid bat. Antrozous pallidus. 2024 [3] Bird: California quail Callipepla californica: 1931 [4] Colors: Blue and gold Blue represents the sky, and gold represents the color of the precious metal found by forty-niners in the ...

  4. Indian Grinding Rock State Historic Park - Wikipedia

    en.wikipedia.org/wiki/Indian_Grinding_Rock_State...

    Indian Grinding Rock State Historic Park is a California State Park, preserving an outcropping of marbleized limestone with some 1,185 mortar holes—the largest collection of bedrock mortars in North America. It is located in the Sierra Nevada foothills, 8 miles (13 km) east of Jackson.

  5. Serpentinite - Wikipedia

    en.wikipedia.org/wiki/Serpentinite

    It is the state rock of California, USA and the California Legislature specified that serpentine was "the official State Rock and lithologic emblem." [4] In 2010, a bill was introduced which would have removed serpentine's special status as state rock due to it potentially containing chrysotile asbestos. [37]

  6. Geology and geological history of California - Wikipedia

    en.wikipedia.org/wiki/Geology_and_geological...

    The oldest rocks in California date back 1.8 billion years to the Proterozoic and are found in the San Gabriel Mountains, San Bernardino Mountains, and Mojave Desert.The rocks of eastern California formed a shallow continental shelf, with massive deposition of limestone during the Paleozoic, and sediments from this time are common in the Sierra Nevada, Klamath Mountains and eastern Transverse ...

  7. Hemet Maze Stone - Wikipedia

    en.wikipedia.org/wiki/Hemet_Maze_Stone

    The Hemet Maze Stone is a prehistoric petroglyph. It is just outside Hemet , in Reinhardt Canyon , within the Lakeview Mountains , in Riverside County , California . On April 16, 1956, Mr. and Mrs. Rodger E. Miller donated the stone, along with 5.75 acres (23,300 m 2 ) of associated land, to Riverside County. [ 1 ]

  8. Marsh Creek State Park (California) - Wikipedia

    en.wikipedia.org/wiki/Marsh_Creek_State_Park...

    Marsh Creek State Park is a State Historic Park in east Contra Costa County, California, United States. [2] about 3.3 miles (5.3 km) south of downtown Brentwood.The park, named for the creek flowing through the property, contains the historic stone John Marsh house, ranching buildings, and numerous pre-historic archaeological sites.

  9. List of U.S. state fossils - Wikipedia

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

    State fossils are distinct from other state emblems like state dinosaurs, state stones, state minerals, state gemstones or state rocks and a state may designate one, a few, or all of those. For example, in Arizona, the state stone is turquoise and the state dinosaur is Sonorasaurus thompsoni yet the state fossil is petrified wood.