Pentaborate Polyanion in the Crystal Structure of Ulexite, NaCaB 5 O 6 (OH) 6 ⋅5H 2 O
- 18 September 1964
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 145 (3638), 1295-1296
- https://doi.org/10.1126/science.145.3638.1295
Abstract
Triclinic ulexite crystals contain isolated borate polyanions [B5O6(OH)6]3- related to the well known pentaborate polyanion [B5O6(OH)4]- by addition of two hydroxyl groups to two opposite B-O triangles. The isolated ulexite polyanions form the [B5O7(OH)4]n3n- chains previously found in crystals of the related mineral probertite, NaCaB5O7(OH)4·3H2O.Keywords
This publication has 4 references indexed in Scilit:
- Crystal chemistry and structure refinement of five hydrated calcium boratesJournal of Inorganic and Nuclear Chemistry, 1964
- Refinement of the structure of potassium pentaborate tetrahydrateActa Crystallographica, 1963
- The crystal structure of meyerhofferite, CaB3O3(OH)5·H2O*Zeitschrift für Kristallographie, 1960
- Studies of borate minerals. III. The crystal structure of colemanite, CaB3O4(OH)2.H2OActa Crystallographica, 1958