Orpiment Mullen D J E, Nowacki W Zeitschrift fur Kristallographie 136 (1972) 48-65 Refinement of the crystal structures of realgar, AsS and orpiment, As2S3 Locality: Lengenbach quarry, Binnatal, Switzerland _database_code_amcsd 0010733 11.475 9.577 4.256 90 90.68 90 P2_1/n atom x y z B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) As1 .26469 .19171 .86274 .00372 .00633 .0279 -.00025 -.00344 .00187 As2 .48677 .32122 .36072 .00397 .00596 .0278 -.00029 -.00338 -.00169 S1 .40151 .12128 .50811 .00461 .00516 .0255 .00167 .0002 -.0008 S2 .34738 .39723 .0101 .00446 .00602 .0306 .00109 -.0066 .0006 S3 .12234 .29354 .55896 .00388 .00629 .0276 .00073 -.0046 .0055