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Almarudite
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| Almarudite.11357 Formula: K.928 Na.2 (Mn1.058 Fe.62 Mg.322) (Be2.214 Al.786) Si12 O30 Name: Almarudite Unit cell: 9.997 9.997 14.09 90.0 90.0 120.0 , V=1219.50 Space group: P6/mcc (192) |
Mihajlovic T , Lengauer C L , Ntaflos T , Lolitsch U , Tillmanns E , Neues Jahrbuch fur Mineralogie, Abhandlungen , 179 (2004) p.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
