thephotosocietyさんのインスタグラム写真 - (thephotosocietyInstagram)「Photo by @MichaelGeorge // This is 'Turquoise Tom' in Payson, Arizona posing with some of his extensive collection of turquoise jewelry. Curious where the stone gets its striking color? David Killick, director of Killick Lab and professor of anthropology, explains: “Turquoise is made when water reacts with copper deposits and the type of rock that surrounds it, which creates varieties in color and appearances of the gemstone." Turquoise has been used by southwest American Indian tribes since 200 B.C. and remains an icon of the region. // #turquoise #turquoisetom #payson #paysonaz #arizona #paysonarizona #natgeotravel #historyofturquoise #jewelry」4月11日 8時03分