首页 > Term: determinative gemology
determinative gemology
The science of differentiating (1) between the various gemstones, (2) between gemstones and their substitutes, and (3) among such substitutes.
- 词性: noun
- 行业/领域: 采矿
- 类别 一般矿业; Mineral mining
- Government Agency: USBM
0
创建者
- ed.young
- 100% positive feedback
(Milwaukee, United States)