| 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. |