Maggie Campbell Pedersen is a Fellow of the Gemmological Association of Great Britain, and an Associate of the British Institute of Professional Photography. For many years she has specialised in organic gem materials - that is, those of plant or animal origin - where her work includes identification, teaching, writing and research. She has given lectures and seminars ... Read moreworld-wide and is a regular contributor to gemmological publications. Thanks to her interest in conservation she has also spent time as a research assistant in various parts of the world, working with endangered species such as elephants and marine turtles, from which ivory and tortoiseshell were derived. Show Less