Specimen Number46-1-019Alternate Number49-101-5CommentsCalcareous tufa cemented material with vein of W-bearing Mn oxide. Need XRD on black Mn oxide.In Teaching CollectionNoMineral(s)calcitemn-oxideRock NameMn-W oreDistrictGolcondaMineGolcondaExternal LinkMindatDeposit TypeHotspringGeo-Coords[1] Donated ByUniversity of Wisconsin-Madison Department of Geoscience