Specimen Number45-6-018Alternate Number49-90-18CommentsLithology ambiguous; macroscopically looks like limestone, but is entirely non-reactive. Need XRD to evaluate.In Teaching CollectionNoMineral(s)calciteRock NamelimestoneDistrictTungsten HillsMineAeroplaneExternal LinkMindatDeposit TypeSkarnGeo-Coords[1] Donated ByUniversity of Wisconsin-Madison Department of Geoscience