Guyanaite Jahn S, Wunder B, Koch-Muller M, Tarrieu L, Pohle M, Watenphul A, Taran M N European Journal of Mineralogy 24 (2012) 839-850 Pressure-induced hydrogen bond symmetrisation in guyanaite, B-CrOOH: evidence from spectroscopy and ab initio simulations Sample: Run #630 Locality: synthetic at 4.0 GPa and 600 deg C for 24 hours _database_code_amcsd 0019393 4.8691 4.3184 2.9594 90 90 90 Pnnm atom x y z Cr 0 0 0 O .353 .243 0 H .5219 .0415 0