Dana Crystal Models - monoclinic

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This is a reproduction of "The Dana Set of Wooden Crystal Models" originally produced by Dr. Krantz Rheinisches Mineralien-Kontor (Bonn). I recreated the models based on reference images in "Dana's Textbook of Mineralogy" (https://archive.org/details/DanasTextbookOfMineralogy), with forms taken from the catalogue available here (provided by the company): https://www.mineralogy.eu/archive/Krantz/Krantz_31_3.pdf Whenever a model corresponds to a crystal structure, the known unit cell constants were used. In all other cases I approximated to match the pictures in Dana's book. Please note that I do not have an original set to compare, so there might be small differences. Also the scaling is arbitrary and probably totally different. There's a labelled (by catalogue number) and unlabelled version. I also include the OpenScad file I used for embossing, in case somebody wants to adjust the labels. I'll add the other crystal systems as soon as I have enough time. Changes I made to correct apparent errors in the catalogue (to match Dana's book): No. 179: {111} changed to {11-1} No. 183: {301} changed to {-301}, added missing {010} No. 185: {100} changed to {110}, {351} changed to {-331} Big Thanks to Prof. Gervais Chapuis for making me aware of this set's existence and sending me his catalogue!