Silvery, blood-red Cinnabar crystals to 1.1 cm with a silky luster are attractively scattered on the massive, Quartz-coated Cinnabar matrix. The ancient mercury mines at Almaden have been in production since the Roman Age, 2000 years ago. This is an attractive, old-time, rich and hefty mercury ore specimen from this historic district. Classic, very rare material with excellent display qualities for a specimen from such an old industrial mine.