Specimen Number35-9-002Alternate Number338DCommentsPhyllically altered rhyolite porphyry with minor pyrite.In Teaching CollectionNoMineral(s)quartzsericitefeldsparpyriteField NotesSample collected by F.S. Turneaure, who published widely on the deposits.Rock Namealtered rhyoliteDistrictBoliviaMineSiglo VeinteExternal LinkMindatDeposit TypeVeinGeo-Coords[1] Donated ByUniversity of Wisconsin-Madison Department of Geoscience
35-9-002: altered rhyolite - Bolivia District - Siglo Veinte Mine. Franklin College Collections, accessed 13/11/2025, https://digitalcollections.franklin.uga.edu/nodes/view/54735