Rondorfite
Mihajlovic T, Lengauer C L, Ntaflos T, Lolitsch U, Tillmanns E
Neues Jahrbuch fur Mineralogie, Abhandlungen 179 (2004) 265-294
Two new minerals, rondorfite, Ca8Mg[SiO4]4Cl2, and almarudite,
K(box,Na)2(Mn,Fe,Mg)2(Be,Al)3[Si12O30], and a study of iron-rich wadalite,
Ca12[(Al8Si4Fe2)O32]C16, from the Bellerberg (Bellberg) volcano, Eifel, Germany
Locality: Bellerberg volcano lava field, 2 km N of Mayen,
Eastern Eifel volcanic area, Eifel, Germany
_database_code_amcsd 0014723
15.0850 15.0850 15.0850 90 90 90 *Fd3
.125 .125 .125
atom      x      y      z  occ   Uiso U(1,1) U(2,2) U(3,3) U(1,2)  U(1,3)  U(2,3)
CaM1     .5     .5     .5      .00710 .00710 .00710 .00710 .00106  .00106  .00106
CaM2 .34060   .125   .125      .00865  .0089  .0089  .0089      0       0 -.00155
MgT2   .125   .125   .125 .912  .0061  .0061  .0061  .0061      0       0       0
FeT2   .125   .125   .125 .028  .0061  .0061  .0061  .0061      0       0       0
AlT2   .125   .125   .125 .060  .0061  .0061  .0061  .0061      0       0       0
SiT1 .25943 .25943 .25943      .00521 .00521 .00521 .00521 .00018  .00018  .00018
O1   .19679 .19679 .19679       .0121  .0121  .0121  .0121 -.0031  -.0031  -.0031
O2   .60157 .29601 .01994       .0088  .0065  .0095  .0105 -.0012   .0003  -.0015
Cl        0      0      0 .929  .0118  .0118  .0118  .0118      0       0       0
O3        0      0      0 .071  .0118  .0118  .0118  .0118      0       0       0