Chrysoberyl is a mineral occurring in granite rocks, pegmatites, and in mica schists. It is frequently found in river sand and gravels in round pieces about the size of a pea, but also crystallized in eight-sided prisms.. It serves as a gem stone: cymophane, orientalchrysolite, alexandrite and 'cats eye' which can be of great value. It has the formulae BeAl2O4 and a relative hardness of 9. *Chrysocolla
Chrysocolla is a hydrous silicate of copper, occurring massive, of a blue or greenish blue colour. It is a minor ore of copper and a mineral of secondary origin, occurring in the oxidised zones of copper veins. It is associated with malachite, azurite, cuprite, native copper. It is named from two Greek words meaning 'gold' and 'glue'. Research Chrysoberyl
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Matt and Leela Probert
Abbreviations
Rocks & Minerals
Research Chrysoberyl
