单词 | siderite |
释义 | siderite [`sid·ǝ´rīt] MINERALOGY FeCO3 A brownish, gray, or greenish rhombohedral mineral composed of ferrous carbonate; hardness is 4 on Mohs scale, and specific gravity is 3.9. Also known as chalybite; iron spar; rhombohedral iron ore; siderose; sparry iron; spathic iron; white iron ore. |
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