Beautiful, polished carnelian agate spheres made from vibrant Madagascar carnelian. All of the spheres come with display stands. Carnelian is a semi-precious stone consisting of an orange or orange-red variety of chalcedony/agate. It's name is believed to come from the Latin word carneus, meaning 'flesh colored'. The reddish color is due to the presence of iron oxide impurities in the silica which makes up the chalcedony.