Euclase is an uncommon gem. The best looking colour is really a pale aquamarine blue, it happens in white, green, and colourless forms. Crystals are prismatic having a perfect cleavage, meaning they're fragile and should be cut and handled carefully.
Euclase occurs mainly in pegmatites. Localities include Brazil, Tanzania, Zaire, Kenya, the first kind USSR, India, Zimbabwe and the United States.
