Goshenite (gem)

Goshenite is also referred to as the purest form of beryl since there are generally no other elements present in the stone.

[3] The gem is used as imitation for diamond or emerald by adding colored foil on it.

[6] Although the gem value of goshenite is relatively low, it can be colored yellow, green, pink, blue, and in intermediate colors by irradiating it with gamma rays and bombarding it with neutrons from nuclear reactors and radioactive materials.

The resulting color depends on the content of Ca, Sc, Ti, V, Fe, and Co impurities.

[5] Goshenite can be found in countries like China, Canada, Brazil, Russia, Mexico, Pakistan, the United States,[3] and Madagascar.