Wolf, Ron2025-02-242025-02-24https://hdl.handle.net/11124/179424Photographed by Ron Wolf.Glassy round cluster of pale blue leadhillite on white and brown matrix.born digitaldigital photographsCopyright Ron Wolf.In copyright - non-commercial use permitted: http://rightsstatements.org/vocab/InC-NC/1.0/mineral and rock specimensleadhilliteMinerals -- Arizona -- Pinal CountyMammoth Mine (Ariz.)Image