Wolf, Ron2025-02-262025-02-26https://hdl.handle.net/11124/179793Photographed by Ron Wolf.Dull grey-black acanthite with glassy white prisms of quartz.born digitaldigital photographsCopyright Ron Wolf.In copyright - non-commercial use permitted: http://rightsstatements.org/vocab/InC-NC/1.0/mineral and rock specimensacanthiteMinerals -- Colorado -- San Juan CountyQuartz -- Colorado -- San Juan CountyImage