Keldyshite Khalikov A D, Khomyakov A P, Makhmudov S A Doklady Akademii Nauk SSSR 238 (1978) 573-575 Crystal structure of keldyshite NaZr[Si2O6OH] _database_code_amcsd 0012457 9.00 5.34 6.96 92 116 88 P-1 atom x y z Biso Na .564 .239 .389 2.58 Zr .276 .774 .057 1.40 Si1 .705 .717 .246 1.00 Si2 .833 .745 .709 1.09 O1 .750 .029 .688 1.93 O2 .519 .814 .227 .73 O3 .305 .572 .846 2.32 O4 .004 .684 .915 1.18 O5 .228 .089 .910 1.02 O6 .295 .469 .211 1.04 O7 .850 .700 .482 2.38