Wolf, Ron2025-05-202025-05-20https://hdl.handle.net/11124/180650Photographed by Ron Wolf.Glassy blue grey plates of barite on dull white plancheite, Milpillas mine, Cuitaca, Santa Cruz Municipio, Sonora, Mexico.born digitaldigital photographsCopyright Ron Wolf.In copyright - non-commercial use permitted: http://rightsstatements.org/vocab/InC-NC/1.0/mineral and rock specimensplancheiteMineralsBariteMilpillas Mine (Mexico)Image