Carnelian SphereA perfect sphere of orange quartzthe form that puts all 360 degrees on display. The sphere is the most demanding cut in lapidary work: every surface must read evenly, with no visible flat or axis. This carnelian sphere is ground and polished to that standard from orange red chalcedonycryptocrystalline quartz colored by dispersed iron oxide throughout its microcrystalline structure. Mohs 6. 57. Carnelian's semi translucency means the sphere glows