| 释义 |
rockbridgeite Min.|ˈrɒkbrɪdʒaɪt|
[f. the name of Rockbridge County, Virginia, where the first specimens were recognized + -ite1.]
A basic phosphate of iron and manganese which is found as dark green or black masses and crusts (turning brown in air owing to oxidation) in limonite and pegmatite deposits.
1949C. Frondel in Amer. Mineralogist XXXIV. 513 The specific name dufrenite is here re-defined to apply to a particular member of the dufrenite-complex, and the new name rockbridgeite is proposed for another common member of this complex. 1951C. Palache et al. Dana's Syst. Min. (ed. 7) II. 868 Rockbridgeite occurs in the United States in a limonite deposit on South Mountain near Midvale, Rockbridge County, Virginia. 1970Amer. Mineralogist LV. 166 A remarkable occurrence at Fodderstack Mountain, Montgomery Co., Arkansas, shows fibrous masses of rockbridgeite with mammillary surfaces and color banding. |
