Blue-Grey Oval Beryl from Brazil

About Beryl

Beryl is a beryllium aluminium silicate with the formula Be₃Al₂Si₆O₁₈. It crystallises in the hexagonal system and commonly forms elongated, six-sided crystals. Pure beryl is colourless, but trace elements create a varied palette: blue beryl is aquamarine, green beryl includes emerald, yellow is heliodor, pink is morganite and the rare red variety is red beryl. Some stones are transparent, while others are translucent or…