| 单词 |
uralborite |
| 释义 |
uralborite Min.|jʊərəlˈbɔəraɪt| [ad. Russ. uralborit (S. V. Malinko 1961, in Zap. Vsesoyuznogo Min. Obshchestva XC. 673), f. the name of the Ural Mountains: see -ite1.] A basic calcium borate, CaB2O4, occurring as colourless monoclinic crystals.
1962Amer. Mineralogist XLVII. 1482 Uralborite occurs in radiating-fibrous aggregates of columnar crystals up to 0·5–0·7 cm. 1971[see nifontovite]. 1977Soviet Physics—Doklady XXII. 279/1 The most interesting feature of uralborite is the [B4O4(OH)8]4- ‘island’ groups..which are overlapped by the Ca deltadodecahedra forming a three-dimensional cationic skeleton. |

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