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Metal arrays in structural units based on anion-centered metal tetrahedra.
  • Krivovichev, Filatov
  • Chemistry, Medicine
  • Acta crystallographica. Section B, Structural…
  • 1 October 1999
It is suggested that the eutactic arrangement of metal atoms in structural units based on anion-centered metal tetrahedra is caused by the closed-shell metal-metal bonding interactions. Expand
Ivanyukite-NaT , ivanyukite-NaC , ivanyukite-K , and ivanyukite-Cu : New microporous titanosilicates from the Khibiny massif ( Kola Peninsula , Russia ) and crystal structure of ivanyukite-NaT
Ivanyukite-Na-T, Na3[Ti4(OH)O3(SiO4)3]·7H2O, ivanyukite-Na-C, Na2[Ti4O2(OH)2(SiO4)3]·6H2O, ivanyukite-K, K2[Ti4(OH)2O2(SiO4)3]·9H2O, and ivanyukite-Cu, Cu[Ti4(OH)2O2 (SiO4)3]·7H2O, are newExpand
New Mineral Names
Batievaite-(Y) (IMA 2015-016), ideally Y2Ca2Ti[Si2O7]2(OH)2(H2O)4, triclinic, is a new mineral discovered at the Sakharjok alkaline massif, Western Keivy, Kola Peninsula, Russia. It occurs inExpand
Revision 2 1 Vránaite , ideally Al
22 The system B2O3-Al2O3-SiO2 (BAS) includes two ternary phases occurring naturally, 23 boromullite, Al9BSi2O19, and boralsilite, Al16B6Si2O37, as well as synthetic compounds 24 structurally relatedExpand
A novel interrupted silicate framework
The crystal structure of thornasite, Na12Th3[Si8O19]4(H2O)18, Z = 6, rhombohedral, a = 29.124(1), c = 17.2602(9) Å, V = 12,679.2(9) Å, space group R3–c, has been solved by direct methods, and refinedExpand
FA2-MS16 Mineral and inorganic crystallography
A fluocerite (Ce,La)F3 single crystal intergrown with bastnaesite (Ce,La)[CO3]F from the Pikes Peak area in Colorado, USA was prepared for the investigation of the crystallographic orientationExpand
O , a rare manganese phyllosilicate from the Kola peninsula , Russia
The structure of shafranovskite, ideally K2Na3(Mn,Fe,Na)4[Si9(O,OH)27](OH)2⋅nH2O (n ∼ 2.33), a K-Na-manganese hydrous silicate from Kola peninsula, Russia, was studied using synchrotron X-rayExpand
In the above article, published in the June 2009 issue of Mineralogical Magazine, a transposition of figures in Table 3 has been noted and the provenance of nechelyustovite cited in the abstract is rectified. Expand
Alumo kermanite , ( Ca , Na ) 2 ( Al , Mg , Fe 2 + ) ( Si 2 O 7 ) , a new mineral from the active carbonatite-nephelinite-phonolite volcano
Alumoåkermanite, (CaNa)2(Al,Mg,Fe )(Si2O7), is a new mineral member of the melilite group from the active carbonatite-nephelinite-phonolite volcano Oldoinyo Lengai, Tanzania. The mineral occurs asExpand