Helvine Kudoh Y, Takeuchi Y Zeitschrift fur Kristallographie 173 (1985) 305-312 The effect of pressure on helvite Mn8S2[Be6Si6O24] Locality: Schwarzenberg, Saxony Sample: P = 14 kbar _database_code_amcsd 0010952 8.261 8.261 8.261 90 90 90 P-43n atom x y z Biso Mn .1680 .1680 .1680 .03 Be .5 0 .25 9.60 Si 0 .5 .25 .04 O .1414 .1400 .4151 .38 S .5 .5 .5 7.25