Wolf, Ron2025-02-262025-02-26https://hdl.handle.net/11124/179781Photographed by Ron Wolf.Dull botryoidal mass of grey brown schalenblende (variety of sphalerite).born digitaldigital photographsCopyright Ron Wolf.In copyright - non-commercial use permitted: http://rightsstatements.org/vocab/InC-NC/1.0/mineral and rock specimensschalenblendeMinerals -- Colorado -- Eagle CountySphalerite -- Colorado -- Eagle CountyEagle Mine (Colo.)Image