首页 > Term: pearl opal
pearl opal
An opaque or feebly translucent, bluish-white, pale-yellowish, or reddish variety of common opal containing a little alumina.
- 词性: noun
- 行业/领域: 采矿
- 类别 一般矿业; Mineral mining
- Government Agency: USBM
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创建者
- ed.young
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(Milwaukee, United States)