Vlodavetsite
Starova G L, Filatov S K, Matusevich G L, Fundamensky V S
Mineralogical Magazine 59 (1995) 159-162
The crystal structure of vlodavetsite, AlCa2(SO4)2F2Cl*4H2O
Locality: Tolbachik Main Fracture Eruption, Kamchatka, Russia
_database_code_amcsd 0014515
6.870 6.870 13.342 90 90 90 I4/m
atom     x     y     z Biso
Al       0     0     0 1.13
Ca       0     0 .7015 1.06
S       .5     0   .75 1.05
F        0     0 .8688 1.40
Cl       0     0    .5 2.12
O1   .3372 .0635 .6859 1.64
O2   .0594 .2727     0 1.74
H     .078  .327  .051 1.95