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Mineral Specimen -- Gypsum var. Selenite, near Buffalo, Wyoming | Gypsum crystal, Mineral specimen, Stones and crystals
![American bison, or buffalo, bones at the Vore Buffalo Jump, a sinkhole and archeological site in Crook County, Wyoming | Library of Congress American bison, or buffalo, bones at the Vore Buffalo Jump, a sinkhole and archeological site in Crook County, Wyoming | Library of Congress](http://tile.loc.gov/image-services/iiif/service:pnp:highsm:34100:34133/full/pct:25/0/default.jpg)