Emerald Tower

Emerald is one of the 4 stones thought of as precious stones for centuries and is the green gem variety of the mineral Beryl, whose other forms include Aquamarine, when it is blue, and Morganite when it is pink. It gets its green color from trace elements in the crystal such as Chromium or Vanadium. Emerald is the birthstone for the month of May, and for the sign of Cancer. It is often found with a hematite matrix.