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Mineralogical Magazine; April 2004; v. 68; no. 2; p. 279-300; DOI: 10.1180/0026461046820187
© Mineralogical Society of Great Britain and Ireland

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FIG. 4. (a) BSE image showing micron-scale intergrowths between cuprobismutite (Cbs) and pad $e$ raite (Pad). Needles of Cbs within the lath with Cbs dominant composition are arrowed. Variation of Pb and Ag across an energy dispersive line scan is also shown. Bd₁₀: oversubstituted bismuthinite. The points 1–7 represent the location for the analyses in Table 2. (b) Lattice image showing styles of coherent intergrowth between pad $e$ raite (Pad) and cuprobismutite (Cbs); irregular strips of Cbs within a domain of Pad (to the left). At the top of the image the intergrowths sequence is shown as white (Pad) and grey (Cbs) bands. The sequences discussed in the text as Slab 1, 3 and 4 are marked in black boxes. Insets show details of Pad and Cbs with corresponding computer simulations down [010], at 900 Å defocus.

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