Oolitic limestone, sedimentary, Wheatly, Oxfordshire, UK, Calcite, iron stained.

---

Size: 3898px × 2598px
Photo credit: © Scenics & Science / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: building, construction, cross, geological, illumination, microscope, microscopy, nicol, polarized, prisms, technology