An visual specimen companion to "A Guide to Minerals, Rocks and Fossils" by W.R. Hamilton, A.R. Wooley and A.C. Bishop".
Looping 3000 x 3000px video.
Comes with a physical copy of the 1974 edition of "A Guide to Minerals, Rocks and Fossils" by W.R. Hamilton, A.R. Woolley and A.C. Bishop (ISBN: 0-517-NO8567) which provided the source for scanned material.