Scheelite, Cassiterite and Beryl from Pingwu, Sichuan Province

The tangerine and orange scheelite, bright black cassiterite, colourless and transparent board beryl occur in Pingwu, Sichuan Province. They are not only important gem raw materials, but also very expensive mineral crystal decorative stones. They have very high taste, collection and economic value. This paper introduces their geological and gemmological features.