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Builders soon found that the stones were useful for more than just jewelry. The sand and stones became components of streets, sidewalks and foundations. It is believed that 10,000 loads [vague] of the stones were crushed and used in the foundation of the Southern California Edison plant built in Redondo Beach in 1907. [3]
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 ...
The following are approximate tallies of current listings in California on the National Register of Historic Places. These counts are based on entries in the National Register Information Database as of April 24, 2008, [1] and new weekly listings posted since then on the National Register of Historic Places web site. [2]
This list of mines in California is subsidiary to the list of mines article and lists working, defunct and future mines in the U.S. state of California. It is organized by the primary mineral output. For practical purposes stone, marble and other quarries may be included in this list.
This is a complete List of National Historic Landmarks in California. The United States National Historic Landmark (NHL) program is operated under the auspices of the National Park Service , and recognizes structures, districts, objects, and similar resources nationwide according to a list of criteria of national significance. [ 1 ]
Official list of California Historical Sites This page was last edited on 13 October 2024, at 19:00 (UTC). Text is available under the Creative Commons ...
Researchers discovered a 500-year-old compass in a hidden chamber in Frombork, Poland, possibly used by Copernicus, shedding light on his astronomical work.
This list of current: cities; towns, unincorporated communities; counties, and other recognized places in the U.S. state of California. Information on the number and names of counties in which the place lies, and its lower and upper ZIP code bounds, if applicable are also included.