Authors: RICHARDS R Peter CLOPTON Edwin L JASZCZAK John A

Citation: Richards R Peter et al., Pyrite and marcasite intergrowths from northern Illinois, Mineralogical record , 26(2), 1995, pp. 129-138

Authors: RICHARDS R Peter

Citation: Richards R Peter, Orpiment from Hunan, China: a crystallographic note, Rocks and minerals , 73(4), 1998, pp. 279-280

Authors: RICHARDS R Peter

Citation: Richards R Peter, The four twin laws of calcite and how to recognize them, Rocks and minerals , 74(5), 1999, pp. 308-317

Authors: WHITE John S RICHARDS R Peter

Citation: S. White John et Richards R Peter, Chinese beryl crystals mimic twinning, Rocks and minerals , 74(5), 1999, pp. 318-320

Authors: RICHARDS R Peter

Citation: Richards R Peter, The use of brackets in crystal descriptions, Rocks and minerals , 77(6), 2002, pp. 398-399

Authors: RICHARDS R Peter ROBINSON George W

Citation: Richards R Peter et W. Robinson George, Mineralogy of the calcite-fluorite veins near Long Lake, New York, Mineralogical record , 31(5), 2000, pp. 413-422