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单词 sphærosiderite
释义 sphærosiderite Min.|sfɪərəʊˈsɪdəraɪt|
[f. sphæro- + siderite1.]
‘A variety of siderite occurring in spherical concretions’ (Chester).
1837Dana Min. 213 Carbonate of Iron. Sparry Iron... Sphærosiderite.1878Lawrence tr. Cotta's Rocks Class. 50 In the compact state, or when occurring in reniform masses or concretions, this mineral is termed sphærosiderite.1886Geikie Class-Bk. Geol. 181 Sphærosiderite or Clay-ironstone concretions enclosing portion of a fern.
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