Home / Standards / GB/T 9649.9 GB/T 9649.9 Abolished The terminology classification codes of geology and mineral resources--The crystallography and mineralogy 地质矿产术语分类代码 结晶学及矿物学 Standard Type GBT ICS 73.040 CCS A24 Status 废止 Issue Date 1998-06-17 Implementation 1999-01-01 Responsible Dept 市场监管总局 Drafting Unit 市场监管总局