Specimen NumberOS-1-5-008Alternate NumberLM-108CommentsHackberry Tuff breccia with quartz veinIn Teaching CollectionNoMineral(s)clayhematitequartzRock Namesilicified tuffDistrictHartMineJumbo SouthExternal LinkMindatGeo-LocationHackberry MountainDeposit TypeEpithermal Low SulfidationReference MaterialMitchell, T.L., 1996, The Stable Isotope Geochemistry and Geology of Synvolcanic Gold Mineralization in the Jumbo South Deposit, Castle Mountains, Eastern Mojave Desert, California: Indications of Magmatic Input; University of Georgia MS thesis, 182 p.
OS-1-5-008: silicified tuff - Hart District - Jumbo South Mine. Franklin College Collections, accessed 13/06/2026, https://digitalcollections.franklin.uga.edu/nodes/view/35387