Alum shale from Cambrian

---

Size: 5315px × 3986px
Location:
Photo credit: © blickwinkel/R. Koenig / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: alum, black, cambrian, crude, eon, era, format, geology, geoscience, horizontal, mineral, mineralogy, minerals, palaeozoic, paleozoic, phanerozoic, pyrite, raw, schist, shale, slate, stone, stones, unmachined, unworked