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单词 ludwigite
释义 ludwigite Min.|ˈluːdvɪgaɪt|
[Named by Tschermak, 1874, after Prof. E. Ludwig: see -ite.]
A black fibrous borate of magnesium and iron.
1875Dana Min. App. ii. 35 Ludwigite occurs altered to limonite.1887Mineral. Mag. VII. 43 A. Renard..examines the optical properties of Ludwigite.
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