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Tadzhikite-(Y): Ca4(Y,Ce)2(Ti,Al,Fe+++,[ ])2[Si4B4O22](OH)2
Comments: Grayish brown crystals of tadzhikite-(Y) in matrix. Location: Dara-i-Pioz Glacier, Alayskiy (Alai) Range, Tien Shan Mountains, Tajikistan. Scale: See Image. © Rruff Database