Colorless beryl is called goshenite. The name originates from the place where it was originally discovered. Since all these color varieties are caused by impurities and pure beryl is colorless, we might be tempted to assume that goshenite is the purest variety of beryl. But it is not.
Goshenite is found to some extent in almost all beryl localities. In the past goshenite was used for manufacturing eyeglasses and lenses owing to its transparency. Now it is used as a gemstone.
The gem value of goshenite is relatively low. However, goshenite can be colored yellow, green, pink, blue and in intermediate colors by irradiating it with high-energy particles. The resulting color depends on the content of impurities.
