ALBUQUERQUE, N.M. (KRQE) — It’s a “hydrated phosphate of copper,” but you may just know it as turquoise. The blue-green mineral widely regarded as a gemstone has significant deposits ...

December has three birthstones: tanzanite, turquoise and zircon. Of the three, tanzanite is relatively new to the world of gems. According ... yellow, brown, green and blue. Regardless of its ...