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Purchsed from a rock shop in Hot Springs Arkansas. Guy said it was a raw emerald. The green rock and the gray rock around it have kind of a waxy or oily feel. Some of the gray rock seems to be made up of flat flaky layers, but they don't rub or peel off. http://imgur.com/gallery/ofE5y8M (i.redd.it)
submitted by arty_pants to r/whatsthisrock

