(a) an ore of lead with a ‘steel-grain’; (b) siderite or native ferrous carbonate.
| 单词 | θ7103 |
| 释义 | the world > the earth > minerals > types of mineral > carbonates > [noun] > hexagonal > siderite (7) steel-ore1796 (a) an ore of lead with a ‘steel-grain’; (b) siderite or native ferrous carbonate. black band1811 a dark-coloured clayey stratum of iron ore occurring in the coal measures (esp. in Scotland) and containing sufficient carbonaceous matter for… spathose iron-ore1823 Of the nature of or resembling spath or spar; abounding in, consisting of, spar; foliated or lamellar… spathose iron, spathose iron-ore, spathose ore… siderose1834 = siderite, n.1 6. sphaerosiderite1837 ‘A variety of siderite occurring in spherical concretions’ (Chester). siderite1848 Mineralogy. Native ferrous carbonate, a brown mineral occurring in a wide range of esp. sedimentary rocks, and sometimes forming lustrous… junckerite1865 A synonym of siderite, n.1 |
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