The file 'Crystals – Corundum, Zircon, Fluorite 3D Printer Model' is (scad,stl) file type, size is 13.3KB.
pmoews has shared excellent quartz crystal models - the teaching aid (http://www.thingiverse.com/thing:831212) is especially useful.
Here are crystals of Corundum, Zircon & Fluorite with the OpenSCAD files that generated them.
For more information, see Steffen Weber's beautiful JCrystal, Mark Holtkamp's Smorf and the Webmineral websites:
http://www.jcrystal.com/index.html
http://www.smorf.nl/index.php
http://webmineral.com/data/Corundum.shtml
http://webmineral.com/data/Fluorite.shtml
http://webmineral.com/data/Zircon.shtml
Corundum.scad | 4.7KB | |
Corundum.stl | 48.1KB | |
Fluorite.scad | 5.1KB | |
Fluorite.stl | 64.7KB | |
Zircon.scad | 3.6KB | |
Zircon.stl | 25.0KB |