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  2. California State Mining and Mineral Museum - Wikipedia

    en.wikipedia.org/wiki/California_State_Mining...

    Exhibits include the crystalline gold Fricot Nugget, weighing 201 troy ounces (6.25 kg), the largest found during the California Gold Rush; a working scale model of a stamp mill over 100 years old, demonstrating the process of extracting gold from quartz rock; and a replica hard rock mine tunnel that allows visitors to better understand California's hard rock mines.

  3. Methuselah (pine tree) - Wikipedia

    en.wikipedia.org/wiki/Methuselah_(pine_tree)

    After the Llangernyw Yew was assessed by David Bellamy as 4,000 to 5,000 years old [15] "using all available data", and the Fortingall Yew, with its former 16 to 17-meter girth, [16] assessed as 5,000 years old, Methuselah may have lost claim to the title of world's oldest non-cloning tree, [17] though newer studies indicate a younger age ...

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

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

    In 1986, California named benitoite as its state gemstone, a form of the mineral barium titanium silicate that is unique to the Golden State and only found in gem quality in San Benito County. [ 80 ] ^ Colorado is the only state whose geological symbols reflect the national flag's colors: red (rhodochrosite), white (yule marble), and blue ...

  5. Calico Early Man Site - Wikipedia

    en.wikipedia.org/wiki/Calico_Early_Man_Site

    Material recovered from nested Pleistocene alluvial deposits stratigraphically beneath a 100,000-year-old soil profile: a 'rock ring' (not a fire hearth) dated to 135,000 years by thermoluminescence (TL), about 200,000 years by uranium-series analysis, and about 197,000+/- 20,000 years by surface beryllium-10 (10 Be) dating.

  6. Gold in California - Wikipedia

    en.wikipedia.org/wiki/Gold_in_California

    Because gold is denser than almost all other minerals, this process further concentrated the gold as it sank, and pockets of gold gathered in quiet gravel beds along the sides of old rivers and streams. [8] The California mountains rose and shifted several times within the last fifty million years, and each time, old streambeds moved and were ...

  7. ‘Frustrated’ California family says insurer dropped them ...

    www.aol.com/finance/frustrated-california-family...

    A family in San Carlos, California, is facing an impossible decision: spend more than $40,000 to remove a nearly 500-year-old heritage white oak tree in their backyard or find new homeowners ...

  8. Archaeologists Found a 500-Year-Old Compass—Turns Out It May ...

    www.aol.com/archaeologists-found-500-old-compass...

    Researchers discovered a 500-year-old compass in a hidden chamber in Frombork, Poland, possibly used by Copernicus, shedding light on his astronomical work.

  9. Cerutti Mastodon site - Wikipedia

    en.wikipedia.org/wiki/Cerutti_Mastodon_site

    The Cerutti Mastodon site is a paleontological and possible archeological site in San Diego County, California. In 2017, broken mastodon bones at the site were dated to around 130,700 years ago. The bones were found with cobblestones displaying use-wear and impact marks among the otherwise fine-grain sands.