Salamanca (Spain), Scotland. Corundum : Azerbaidzhan, Madagascar. Jasper :  America, Baden (Germany), Dauphine (France), Deccan Plateau (India), Egypt, Hunruck Mts. (Germany), North Carolina, Saxony (Germany). Moonstone : America, Australia, Burma, Brazil, Canada, Ceylon, Colorado, India, Karelia (Russia), Madagascar, Southwest Africa, Tanzania. Onyx : America, Argentina, Atlas Mts. (Algeria), Mexico. Opal, common :