Specimen Number47-5-025Alternate Number49-97-2CommentsCrumbly, very fine-grained colemanite.In Teaching CollectionNoMineral(s)colemaniteRock NameB oreDistrictFurnace CreekMineBoraxoExternal LinkMindatDeposit TypeEvaporiteGeo-Coords[1] Donated ByUniversity of Wisconsin-Madison Department of Geoscience