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alluvial values
In placer mining, the minerals recoverable from the alluvium. These include cassiterite, gold, diamond, gemstones, zirconia, rutile, monazite, and platinum.
- スピーチの一部 noun
- 産業/ドメイン 炭鉱
- カテゴリ 炭鉱全般; Mineral mining
- Government Agency: USBM
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作成者
- ed.young
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(Milwaukee, United States)