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The structure of cubic (or  α ) domeykite, Cu 3 AS, has been reexaminee and refined from counter data. The original (1938) and somewhat discredited model proposed by S teenberg  has been fully confirmed. In addition to the relation, previously pointed out by S teenberg , between this structure and the structure of Cu 15 Si 4 , a relation is described between the  α -domeykite structure and the  β -W structure ( A  15) type.

Refinement of the crystal structure of α domeykite, a structure related to the A 15 type*