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Benitoite
Benitoite is a rare blue silicate mineral, found in hydrothermally altered serpentinite. Benitoite fluoresces under short wave ultraviolet light, appearing light blue in color. Dr. Louderback, who conducted the discovery examination of this mineral, named it Benitoite, “as it occurs near the head waters of the San Benito River in San Benito County,” California.[3][4] Additional recommended knowledge
Uses of benitoiteBenitoite's rarity makes it a minor ore for barium or titanium at best. Rather, benitoite's main uses are as collector's specimens, especially in specimens which show off this mineral's unique crystals, or specimens in which benitoite occurs with its commonly associated minerals. Benitoite's hardness also makes it suitable for use as a gemstone, though the general lack of usable material has limited this use. Associated minerals and locationsBenitoite typically occurs with an unusual set of minerals, along with minerals that make up its host rock. Frequently associated minerals include:
Benitoite is a rare mineral, found in very few locations, most prominently in southern San Benito County, California, but also in Japan and Arkansas. In the San Benito occurrence it is found in natrolite veins within glaucophane schist within a serpentinite body. In Japan it occurs in a magnesio-riebeckite-quartz-phlogopite-albite dike cutting a serpentinite body.[5] Benitoite is typically found with some combination of natrolite, joaquinite, and neptunite on a greenish-grey serpentinite base. Finally, benitoite's fluorescence is used for identification purposes. TriviaBenitoite is the official state gem of California.[6] Benitoite is the official gem of E Clampus Vitus. References
Categories: Silicate minerals | Gemstones |
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This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Benitoite". A list of authors is available in Wikipedia. |