首页 > Term: polycrase
polycrase
Un mineral orthorhombic, (Y,Ca,Ce,U,Th)(Ti,Nb,Ta) 2 O 6; negru; în pegmatites granit. Scris anterior polykras.
- 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
- CIbanescu
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(V.I.P) 54244 分数 - 100% positive feedback
(Bucharest, Romania)
