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.
| 1962 Amer. Mineralogist XLVII. 1482 Uralborite occurs in radiating-fibrous aggregates of columnar crystals up to 0·5–0·7 cm. 1971 [see nifontovite]. 1977 Soviet 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. |