4.12: UG2 (Platinum Ore Layer) Last updated Save as PDF Page ID11123 Contributed by Elizabeth Johnson and Juhong Christie LiuFaculty (Geochemistry) at James Madison UniversitySourced from Virtual Library of Virginia HAND SAMPLE IMAGES AND VIDEOS Click on the image for a larger, downloadable version. A YouTube element has been excluded from this version of the text. You can view it online here: pb.libretexts.org/petrology/?p=201