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2. Benitoite - Wikipedia

   en.wikipedia.org/wiki/Benitoite

   Benitoite (/ b ə ˈ n iː t oʊ aɪ t /) is a rare blue barium titanium cyclosilicate mineral, found in hydrothermally altered serpentinite. It forms in low temperature, high pressure environments typical of subduction zones at convergent plate boundaries. Benitoite fluoresces under short wave ultraviolet light, appearing bright blue to bluish ...

3. 18 Most Expensive Gemstones in the World - AOL

   www.aol.com/finance/18-most-expensive-gemstones...

   Benitoite is a rare gem that looks something like a sapphire. However, it has a much higher refractive index than sapphires or even diamonds, making it sparkle brightly. ... Get sweaters on sale ...

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. List of gemstones by species - Wikipedia

   en.wikipedia.org/wiki/List_of_gemstones_by_species

   This is a list of gemstones, organized by species and types. Minerals There ... Benitoite; Beryl subgroup: Aquamarine. Maxixe; Emerald. Trapiche emerald (var.) Goshenite;

6. Pabstite - Wikipedia

   en.wikipedia.org/wiki/Pabstite

   In addition, pabstite can be found in Rush Creek in California when benitoite contains small amounts of tin. It is commonly occurs in rocks that contain calcite, quartz, tremolite, witherite, phlogopite, diopside, minor amounts of forsterite and taramellite. Pabstite can also be found associated with galena, cassiterite and sphalerite. [7]

7. George Louderback - Wikipedia

   en.wikipedia.org/wiki/George_Louderback

   George Davis Louderback (April 6, 1874 – January 27, 1957) was an American geologist, known for identifying and describing benitoite and joaquinite. [ 1 ] [ 2 ] Biography