Specimen Number47-6-007Alternate Number49-97-11CommentsCrumbly fine- to medium-grained colemanite with abundant brown clay, need to XRD to identify.In Teaching CollectionNoMineral(s)colemaniteclayRock NameB oreDistrictFurnace CreekMineBoraxoExternal LinkMindatDeposit TypeEvaporiteGeo-Coords[1] Donated ByUniversity of Wisconsin-Madison Department of Geoscience