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Tadzhikite-(Ce): Ca4(Ce,Y)2(Ti,Al,Fe+++,[ ])2[Si4B4O22](OH)2
Comments: Brown crystal of tadzhikite-(Ce) with baratovite, polylithionite and zektzerite in matrix. Location: Dara-I-Pioz, Tajikistan. Scale: Specimen Size 1.5x2 cm. © Diederik Visser