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2. Turquoise - Wikipedia

   en.wikipedia.org/wiki/Turquoise

   Turquoise. Turquoise is an opaque, blue-to-green mineral that is a hydrous phosphate of copper and aluminium, with the chemical formula Cu Al 6( PO 4)4( OH)8·4 H 2 O. It is rare and valuable in finer grades and has been prized as a gemstone for millennia due to its hue.

3. Crestone, Colorado - Wikipedia

   en.wikipedia.org/wiki/Crestone,_Colorado

   Crestone is located near the 38th parallel, in the San Luis Valley in south-central Colorado. It is platted on a quarter section of land, or 160 acres (0.65 km 2), on the alluvial fan of North Crestone Creek. Much of the land near the creek where the main part of the city sits, is well watered in normal times, but during a prolonged drought the ...

4. List of gemstones by species - Wikipedia

   en.wikipedia.org/wiki/List_of_gemstones_by_species

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5. List of U.S. state minerals, rocks, stones and gemstones

   en.wikipedia.org/wiki/List_of_U.S._state...

   A 2010 effort led by State Senator Gloria J. Romero, a Democrat from Los Angeles, sought to remove serpentine from its perch as the state's official stone. Organizations such as the Asbestos Disease Awareness Organization have supported the move as the olive green rock is a source of chrysotile , a form of asbestos that can cause mesothelioma ...

6. Bisbee Blue - Wikipedia

   en.wikipedia.org/wiki/Bisbee_Blue

   Bisbee turquoise can be found in many different shades of color and quality, from soft, low quality pale blue, to the quality hard brilliant blue turquoise and almost every shade of blue in between. The highest grade of Bisbee Blue turquoise is almost lapis lazuli blue and has a brownish-red spiderweb matrix. Green turquoise is also found in ...

7. List of ghost towns in Arizona - Wikipedia

   en.wikipedia.org/wiki/List_of_ghost_towns_in_Arizona

   Turquoise Cochise: 1870s: 1940: Semi-abandoned site: Town was first settled as Turquoise in the 1870s in what was then the Arizona Territory, then later re-established as Gleeson in 1900. Goldfield: Youngsburg Pinal: 1892,1920: 1898,1926: Historic site: Goldfield revived as Youngsburg in 1920, is now a tourist attraction. Goldroad: Acme Mohave ...