crocoite /krəʊˈkəʊɪˌsaɪt, ˈkrəʊkwəˌsaɪt/ (also crocoisite)

• 1. 

  N a rare orange secondary mineral consisting of lead chromate in monoclinic crystalline form. Formula: PbCrO4 铬铅矿 (Also called red-lead ore)