Complex sentence: A "refractory" gold ore are ores that have ultra fine gold particle disseminated throughout its gold occluded minerals, it is naturally resistant to recovery by standard cyanidation and carbon adsorption processes.
Split into simpler sentences: A "refractory" gold ore is an ore that has ultra fine gold particles disseminated throughout its gold occluded minerals. These ores are naturally resistant to recovery by standard cyanidation and carbon adsorption processes.