Merge the two images by adjusting your eyes correctly to see in 3D (or use VR glasses with phone). The left image corresponds to the perspective seen by the left eye, if looking at a real cube closeup. The right image corresponds to what your right eye sees. Not necessary but can use Turbowarp to customize VR screen dimensions: https://turbowarp.org/747932967?size=500x250
I created the pyrite and animation in blender. Tap screen to make variables disappear. Flag to reappear. Pyrite comes in different forms including pyritohedral and simple cubic. Often the cubic form is compound, with one smaller cube embedded in another. Sometimes the surface is very smooth, but other times has these lines, as I modelled here. I modeled in Blender, with trial and error to get imperfections, and lines.
