Specimen Number46-1-027Alternate Number49-106-2CommentsHeavily silicified, unmineralized host rhyolite. Predominantly quartz with minor andalusite, see XRD pattern below.In Teaching CollectionNoMineral(s)quartzandalusiteRock Namesilicified rhyoliteDistrictSacramentoMineChampion, NVExternal LinkMindatDeposit TypeVeinGeo-Coords[1] Donated ByUniversity of Wisconsin-Madison Department of Geoscience