Specimen NumberOS-1-6-004Alternate NumberLM-44CommentsVuggy and wildly spherulitic, silicified rhyoliteIn Teaching CollectionNoMineral(s)clayquartzRock Namespherulitic rhyoliteDistrictHartMineJumbo SouthExternal LinkMindatGeo-Locationbetween Egg Dome and Linder PeakDeposit 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-1-6-004: spherulitic rhyolite - Hart District - Jumbo South Mine. Franklin College Collections, accessed 09/08/2026, https://digitalcollections.franklin.uga.edu/nodes/view/35394