- Gemmology in Scotland Scottish Branch of the Gemmological Association Future Events Exhibitions of gems and minerals in Scotland Learn more about gemstones Gemmological Association of Great Britain: Courses Courses at Edinburgh University Books and Equipment from Alan Hodgkinson, F.G.A., D.G.A. Feature Articles Moissanite by Alan Hodgkinson Scottish Gemstones Series: Jasper by Peter Davidson ...www.scotgem.demon.co.uk