Geological Anomalies: Chalcedony Breccia in a Cinnabar Matrix and the Disappearance of Michigan’s Geology Professor
Steven Veatch (noreply@blogger.com)
By Steven Wade Veatch Hidden among geological marvels at a mineral show was a cinnabar-bearing chalcedony breccia-specimen (Figure 1). The term "breccia" refers to a rock composed of angular fragments, while "chalcedony" describes a type of cryptocrystalline quartz. Adding "cinnabar" specifies the presence of mercury sulfide, which creates a distinctive red color. Figure 1. Chalcedony breccia in a cinnabar-matrix. While attending the Central Michigan Lapidary and Mineral Society rock show in 202