This emerald is from the Adams Farm in Hiddenite, Alexander County, North Carolina, USA. There are several open digs and mines still operating in the area and occasionally emerald beryl is found. 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 green color is from trace elements chromium or vanadium that are incorporated in the crystal lattice. This is a hexagonal emerald crystal with irregular terminations. The bottom (photo 7) has minor green mica associated with it and the top (Photo 4) has red rutile crystals associated with it. The rear of the crystal is flattened and looks like it was originally attached to a flat (possibly mica) matrix.. This piece measures 21 x 21 x 12 mm and it weighs 19 carats.