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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 word prasiolite literally means "scallion green-colored stone" and is derived from Greek πράσον prason meaning "leek" and λίθος lithos meaning "stone". The mineral was given its name due to its green-colored appearance. Natural prasiolite is a very light, translucent green. Darker green quartz is generally the result of ...
Mariposite is a mineral which is a chromium-rich variety of mica, which imparts an attractive green color to the generally white dolomitic marble in which it is commonly found. It was named for Mariposa, California , United States, though it can be found in several other places in the Sierra Nevada .
Serpentine subgroup (part of the kaolinite-serpentine group in the category of phyllosilicates) [1] are greenish, brownish, or spotted minerals commonly found in serpentinite. They are used as a source of magnesium and asbestos , and as decorative stone. [ 5 ]
Smaller deposits are found in South America (Brazil and Bolivia), Portugal, Romania, Burma and Russia. Hackmanite is found principally in Mont-Saint-Hilaire and Greenland. Euhedral, transparent crystals are found in northern Namibia and in the lavas of Vesuvius, Italy. Sodalitite is a type of extrusive igneous rock rich in sodalite. [16]
A similar green grossular garnet can be found in the Wah Wah mountain range in Utah. [ 8 ] Grossular is known by many other names, and also some misnomers ; [ 9 ] colophonite – coarse granules of garnet [ 10 ] (was later identified as a variety of andradite ), ernite , gooseberry-garnet – light green colored and translucent, [ 11 ...
After some recent intense wildfires in Northern California, scientists tested samples of singed soil and were disturbed by their findings: It was laden with a cancer-causing metal called ...
Thulite (sometimes called rosaline) is a translucent, crystalline or massive pink manganese-bearing variety of the mineral zoisite. Manganese substitutes for calcium in the structure with up to two percent Mn 2+. [1] Thulite is often mottled with white calcite and occurs as veins and fracture fillings transecting many types of rock.