Yuksporite



Yukspor Mt,Khibiny Massif,Kola Peninsula,Murmanskaja Oblast',Northern Region,Russia
K4(Ca,Na)14(Sr,Ba)2([],Mn,Fe)(Ti,Nb)4[(O,OH)4|(Si2O7)3|(Si6O17)2].~3(H2O,OH)   Size:3.8cm(Photo)