EYE OF SCIENCE / SCIENCE PHOTO LIBRARY EYE OF SCIENCE / SCIENCE PHOTO LIBRARY
Pink beryl crystal. Coloured scanning electron micrograph (SEM) of a crystal of a pink variety of the beryl. Beryl (beryllium aluminium silicate) is found in several varieties: several varieties of beryl, aquamarine (blue), emerald (green), goshenite, heliodor and morganite. Magnification: x67, when printed 10 centimetres wide.
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