Citation: Quint, R. (1987). Description and crystal structure of amstallite, CaAl(OH)2[Al0.8Si3.2O8(OH)2]*[(H2O)0.8Cl0.2], a new mineral from Amstall, Austria Locality: Amstall, Austria. Neues Jahrbuch fur Mineralogie, Monatshefte, 1987, pp. 253-262.