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  1. A general term for a compact, siliceous conglomerate of vein-quartz pebbles about the size of a pigeon's egg, embedded in a quartzitic matrix. The term was originally applied in the Witwatersrand area of South Africa to the mildly metamorphosed gold-bearing conglomerates containing muffin-shaped quartz pebbles and resembling an almond cake made by the Boers. Etymol: Afrikaans, a kind of confectionery. AGI
  2. Originally applied by the Dutch settlers to the gold-bearing conglomerates of the Witwatersrand. It is now used more widely for similar conglomerates and conglomeratic quartzites. CTD

Source: Dictionary of Mining, Mineral, and Related Terms

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