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Benitoite typically occurs with an unusual set of minerals, along with minerals that make up its host rock. Frequently associated minerals include: natrolite, neptunite, joaquinite, serpentine and albite. Benitoite is a rare mineral found in very few locations including San Benito County, California, Japan and Arkansas.
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 ...
Clear Creek is a 9.9-mile-long (15.9 km) [1] tributary of the San Benito River in California, in the United States. The creek is the site of Clear Creek Management Area, operated by the BLM, and is known for its mineral abundance. The headwaters area of the creek is the only known location of gem quality benitoite, the designated California ...
Benitoite is a rare gem that looks something like a sapphire. ... the element was first created in the University of California's Radiation Lab in Berkeley. Thanks to its radioactive properties ...
Benitoite is a rare gem that looks something like a sapphire. ... the element was first created in the University of California’s Radiation Lab in Berkeley. Thanks to its radioactive properties ...
The New Idria Mining District is known for its abundance of rare minerals such as benitoite, named after the San Benito River. Gem quality benitoite is only found in this area of the world. New Idria is also home to serpentinite rock. Many thousands of tectonic events acting on the serpentinite have produced extensive deposits of short-fiber ...
Hobby gem and mineral collectors are drawn to the Clear Creek area, one of the most highly mineralized areas in California, by the presence of over 150 semi-precious minerals and gemstones. Among these are serpentine, jadeite, cinnabar, tremolite, topazite, neptunite, and the extremely rare California state gem, benitoite.
Physical properties; ... benitoite (barium titanium silicate), occurs as a very rare blue fluorescent gemstone, and is the official state gem of California.