Emeralds The Emerald is a rich green stone that can be more valuable than a diamond of the same size. Emeralds are part of the beryl family of precious stones. They have a hardness of 8 and a sp.gr of 2.7 to 2.9. The emerald is considered a gem, or a mineral that is desired for its beauty and durability. A large number of minerals are considered gems. Emeralds and beautiful stones like it have their value …showed first 75 words of 618 total…

…showed last 75 words of 618 total…used to make metals in jets, reactors, and some other important equipment. Superstition states that staring at an emerald will improve your eyesight and take away the need for glasses. Overall, the emerald is a very amazing gem. No other object is said to have a better shade of green than an emerald. It is a very useful stone that has been admired for thousands of years and probably will be admired for thousands more.