Magnesioferrikatophorite, Eudialyte, Microcline

Magnesioferrikatophorite : [Na][CaNa][Mg₄(Fe³⁺,Al)][(OH)₂|AlSi₇O₂₂], Eudialyte : Na₁₅Ca₆(Fe²⁺,Mn²⁺)₃Zr₃[Si₂₅O₇₃](O,OH,H₂O)₃(OH,Cl)₂, Microcline : K[AlSi₃O₈]

Locality: Northeast slope, Kukisvumchorr Mt, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia

Double-terminated short-prismatic crystal of titanoan (2.17 % TiO2) magnesioferrikatophorite from a nephelin-syenite pegmatite. Composition of the mineral is (Na.48K.22).85(Na1.06Ca.94)2.00(Mg3.11Fe".77Mn.12)4.00(Fe"'.87Ti.13)1.00[(Si7.12Al.77Ti.11)8.00O22](OH)2. FOV is ~ 12x10 mm. Collected by Dmitrii Krinov in August of 2003. Pavel M. Kartashov collection (#2083), analytical data and photo.

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Magnesioferrikatophorite, Eudialyte, Microcline

Magnesioferrikatophorite : [Na][CaNa][Mg4(Fe3+,Al)][(OH)2|AlSi7O22], Eudialyte : Na15Ca6(Fe2+,Mn2+)3Zr3[Si25O73](O,OH,H2O)3(OH,Cl)2, Microcline : K[AlSi3O8]

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Magnesioferrikatophorite : [Na][CaNa][Mg₄(Fe³⁺,Al)][(OH)₂|AlSi₇O₂₂], Eudialyte : Na₁₅Ca₆(Fe²⁺,Mn²⁺)₃Zr₃[Si₂₅O₇₃](O,OH,H₂O)₃(OH,Cl)₂, Microcline : K[AlSi₃O₈]