I started to learn geometry nodes in blender and I ended creating this free addon for illustrating crystals and I needed to create a few examples images that looks quite good in my opinion and so I decided to share the. Please download from my github the addon! 

What is it?

Crystal Nodes (CN) is an addon for the 3D modelling & animation program Blender that enables easy creation of crystals illustrations. CN is focused on providing tools for drawing Crystallography illustrations and it is not (for now) a computational tool for calculating inorganic structures

Features:

generic tools for creating a basic grain forms (extended primitives node and nodes for non isometric crystal system)

tools for instancing grains according to the most common growth pattern (radiating, plumose, parallel, granular, felted, foliated )

tools for creating h,k,l planes, extruding faces, mirroring faces and to instance objs according to Bravais translation