First I would like to test this.
Eight XL8.5-scenefiles: MINERALS
The downloads contains both the minerals with the shaders, and the scenes with lights and floors.
The eight individual minerals consist in each case of only one object.
Each object is layered with several shaders.
The crystals grew with displacement.
The contents of the files are intended for private learning - not for commercial use.
What you see is what you get!
Click the pic.