Amazonite is a mineral of limited occurrence. Formerly it was obtained almost exclusively from the area of Miass in the Ilmensky Mountains, 50 miles southwest of Chelyabinsk, Russia, where it occurs in granitic rocks. More recently, high-quality crystals have been obtained from Pike's Peak, Colorado, where it is found associated with smoky quartz, orthoclase, and albite in a coarse granite or pegmatite. Crystals of amazonite can also be found in Crystal Park, El Paso County, Colorado. Other locations in the United States which yield amazonite include the Morefield Mine in Amelia Courthouse, Virginia. It is also found in pegmatite in Madagascar, Canada and in Brazil.
For many years, the source of amazonite's color was a mystery. Naturally, many people assumed the color was due to copper because copper compounds often have blue and green colors.More recent studies suggest that the blue-green color results from small quantities of lead and water in the feldspar.Hardness on Mohs Scale is 6-6.5 .
Crystals of amazonite, from Pikes Peak, El Paso County, Colorado
Large Amazonite crystal from Konso special woreda, Ethiopia. Size: 16.4 x 11.9 x 8.0 cm.
Crystal of amazonite from the Take 5 claim near Florissant, Colorado (size: 4.4 x 4 x 3.5 cm)
- "Amazonite: Amazonite mineral information and data". Retrieved 13 April 2017.
- "amazonstone - mineral". Retrieved 13 April 2017.
- Barthelmy, Dave. "Microcline Mineral Data". WebMineral.com. Retrieved 13 April 2017.
- One or more of the preceding sentences incorporates text from a publication now in the public domain: Chisholm, Hugh, ed. (1911). "Amazon-stone". Encyclopædia Britannica. 1 (11th ed.). Cambridge University Press. p. 791.
- D. Allen Penick, Jr. and Palmer C. Sweet, Mineral Collecting Sites in Virginia, Virginia Minerals, May 1992, V. 38, No. 2, pp. 10–11 Archived 2012-04-24 at the Wayback Machine.
- Hoffmeister and Rossman (1985). "A spectroscopic study of irradiation coloring of amazonite; structurally hydrous, Pb-bearing feldspar". American Mineralogist. 70: 794–804.
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