Imperial purple

摘要

Cyrille Djankoff opened his talk by explaining his background in the gem world. Aged 18, he travelled to Mozambique on holiday and ended up staying for many years. He began dealing in gems there, initially swapping stones for other basic commodities, as well as visiting extremely remote regions where he would get involved in the local mining. Cyrille experimented with colourless Mozambique beryl, finding that a combination of heating and irradiation could provide a brown colour at first, eventually changing to a good 'morganite' pink.