Specimen Number36-4-032Alternate Number52-33-9CommentsMedium- to coarse-grained bostonite, with minor pyrite. Tertiary.In Teaching CollectionNoMineral(s)orthoclasepyriteRock NamebostoniteDistrictIdaho SpringsExternal LinkMindatGeo-LocationSpecific mine within district unknown.Deposit TypeVeinDonated ByUniversity of Wisconsin-Madison Department of Geoscience
36-4-032: bostonite - Idaho Springs District - Unknown Mine. Franklin College Collections, accessed 12/11/2026, https://digitalcollections.franklin.uga.edu/nodes/view/55010