A gemstone called an Emerald
The emerald is a green mineral with its colour due to traces of chromium giving out the green pigment. The emerald is cut into a variety of detailed designs that brings out its beauty and overall appearance. The cut, weight, hardness and refractive index are the factors to be considered when appraising the value of an emerald. However, one should bear in mind that there are several gemstone-like stones.Countries like Egypt , South America , Siberia , Mexico and Peru are some places that mine the emerald.