Structure refinement of prehnite from Passaic County, New Jersey, USA

Abstract

The crystal structure of prehnite Ca2(Al, Fe)(Si3AlO10)(OH)2 from Upper New Street Quarry, Paterson, Passaic County, New Jersey, USA was determined by single–crystal X–ray diffraction. The converged structural model in the space group P2cm [a = 4.63309(9) Å, b = 5.4839(1) Å, c = 18.5100(3) Å, Z = 2] allowed for the investigation of an ordered Si/Al distribution together with the feasible hydrogen positions inferred from the difference Fourier maps.