伟晶岩 Traditional form: 偉晶岩 Pinyin (reading): wěijīngyán Definitions: pegmatite Characters: 伟 - great, imposing; extraordinary 晶 - crystal; bright, clear, radiant 岩 - cliff; rocks; mountain Traditional characters: 偉 - great, imposing; extraordinary 晶 - crystal; bright, clear, radiant 岩 - cliff; rocks; mountain