This emerald is from the Mun. de Muzo, in the Vasquez-Yacopi Mining District, Boyaca Department, Colombia. There are over a dozen mines in the area that produce most of the emeralds in the world. Emerald is the rare green, gem, variety of beryl. Beryl comes in a variety of colors and emerald is the most sort after. It is a silicate that contains the elements Be, Al, Si, and O. It’s unique color is from the trace elements chromium or vanadium that are incorporated in the crystal lattice. This is a gem quality medium green crystal that has a flat termination on the top and a healed and beveled termination at the base. This crystal measures approximately 14 x 5 x 4 mm as displayed in photo 1 and it weighs 1.63 carats.