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Mineral mining
The extraction of valuable minerals or other geological materials from the earth for economic interests.
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Mineral mining
becquerelite
광업; 일반 광산
orthorhombic 미네랄, Ca (UO 2 ) 6 O 4 (OH) 6 .8H 2 O, 바 륨, 칼륨 칼슘;에 대 한 대체 황색-황색; 석 및 ianthinite 변경의 방사성 제품입니다.
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rufaro9102
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