My RTH friend Lowell compiled the work of three selected RTH friends into portfolios.  Their work simply captures the finest in the artistry/hobby.  If you want to be enraptured and enthralled, (by their work, and by the beauty in rocks) take a look at these.

I think you have to download the file.  It’s in pdf format, well worth it and can be deleted after viewed, with no strings attached.  Enjoy!!