Home / Standards / GB/T 9649.9-2009 GB/T 9649.9-2009 Active Terminology classification and code of geology and mineral resources - Part 9: Crystallography and mineralogy 地质矿产术语分类代码 第9部分：结晶学及矿物学 Standard Type GBT ICS 35.040 CCS A24 Status 现行 Issue Date 2009-10-15 Implementation 2009-12-01 Responsible Dept 市场监管总局 Drafting Unit 市场监管总局