| 02087: Gypsum (twinned) - $8 Great Salt Plains, Salt Plains National Wildlife Refuge, Alfalfa County, Oklahoma Thumbnail - 2.5 x 1.7 x 0.9 cm 12 grams including box Ex Willard Perkin Specimen status: Reserved Send an email with specimen number to order A classic Great Salt Plains gypsum crystal,
twinned and rendered brown by sand/mud inclusions. A
typical Willard Perkin 'Perky box' thumbnail
mount (this one on his classic comb tooth shaft), compete
with a typical Perkin label. Superb condition.
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