A darkmineral consisting of oxides of yttrium and erbium and tantalum and other minerals.
一种黑色矿物，由钇、铒、钽和其他矿物的氧化物组成。
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It consists of a mineral pedestal on which bases avolume of dark wood protected from the ground.
住宅黑色木质体量的底部是矿物基座，可以有效地防止木材遭到腐蚀。
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Serpentinite is a dark green mineral used in decoration and jewelry. In nature, it is formed when sea water infiltrates into Earth's upper mantle, at depths that can reach 200 km in subduction zones.