You have the option to select from 8x10mm oval Mohave turquoise cabochons with copper veining in blue, green, purple, or watermelon. These cabochons are made from authentic turquoise nuggets extracted from the Kingman mine in Arizona. To enhance their appearance, they have been treated with dye and stabilized with colored epoxy. The copper veining is a result of adding bronze into the matrix during the production process.