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Tsepinite-K: (K,Ba,Na)2(Ti,Nb)2(Si4O12)(OH,O)2·3(H2O)
Comments: Light orange acicular crystals of tsepinite_K. Location: Karnasurt Mt, Lovozero Massif, Kola Peninsula, Murmanskaya Oblast'; Northern Region,. Scale: See Image. © Rruff Database