Gypsum, Halite

Unknown Owner

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A fine plate dominated by a gem, 4.7 cm, fishtail-twinned, intense orange gypsum crystal on a bed of smaller, un-twinned crystals. The large gypsum is pristine. This is one of the very best Peruvian gypsums we have seen, in particular because it preserves the halite association (many of them get dissolved away in situ). The large crystal is very gemmy and colorful. Ex. Ed David Collection.