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Brazil | |
| Cassedanne, Jacques P., Nen, Luizhélio Barreto da Silva (1991) Strontian Crandallite from the Alto Benedito Pegmatite, Paraiba, Brazil. The Mineralogical Record, 22 (3) 183-185 |
| Fernando Brederodes Collection |
| Wegner, R., Pöllmann, H., Witzke, T., Schuckmann, W. (1998) Colquiriite, carlhintzeite, ralstonite and pachnolite from Serra Branca-Pegmatite/Brazil.- Proceedings 17th General Meeting, IMA, August 1998, Toronto: A151. |