首页 > Term: yowah nut
yowah nut
Walnut-to almond-size pebble with an opal center; ironstone covered with a thin band of opal, or hollow; near Yowah station, western Queensland, Australia. A subvariety of boulder opal.
- 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)