co·lum·bite-tan·ta·lite 
(kə-lŭmbīt′tăntə-līt′)
(kə-lŭmbīt′tăntə-līt′)n.
A dull black aggregate of the minerals columbite and tantalite, mined as a source of niobium and tantalum. Also called coltan.
| 单词 | columbite-tantalite |
| 释义 | co·lum·bite-tan·ta·lite (kə-lŭmbīt′tăntə-līt′)n. A dull black aggregate of the minerals columbite and tantalite, mined as a source of niobium and tantalum. Also called coltan. |
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