“…It is based on the single-crystal X-ray diffraction of a natural sample from Jote West mine, Pampa Larga Mining District, Copiapo, Chile. The general structural feature of agardite-(Y) is characterized by infinite chains of edge-sharing CuO(5) square pyramids (site symmetry 1) extending down the c axis, connected in the ab plane by edge-sharing YO(9) polyhedra (site symmetry -6..) and corner-sharing AsO(4) tetra­hedra (site symmetry m..). …”
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