Crystal.m is a Mathematica package allowing the drawing of a crystal's morphology based on the knowledge of its symmetry group, axis system, and the Miller indices of its expressed faces. The classical work Atlas der Krystallformen by Victor Goldschmidt contains 23606 crystal drawings and a short description of each drawing. All images and text are on two cd's containing approx. 810 MB of graphic files. Fully functioning evaluation copies of all products are available for download.
ZIP files contain one or more files.
The list purpose is to exchange ideas, collecting sites, tips, and other information of general interest to gem and mineral collectors. The page contains, among other things the archives from the rockhounds mailing list. This list was started in 1993 by Thomas W. Corson and has about 300 subscribers. Expect about 2 to 20 mail-messages per 24 hours. The purpose of this list is to exchange information between editors of gem, mineral, and lapidary society newsletters.