Min. [Named by Bechi, 1854, after Count F. de Larderel, who owned the fumaroles where it was found.] Hydrous borate of ammonium, occurring as a white powder.
1854. Amer. Jrnl. Sci., XVII. 129. Larderellite … dissolves in hot water.
1868. Dana, Min. (ed. 5), 882. Larderellite … Occurs at the Tuscan lagoons.
