For the crystals there are a lot of methods, with Rhino or with Grasshopper
https://www.food4rhino.com/en/app/rhinopolyhedra
You could search for stable positions with my Nautilus plugin
the faces on the floor with bigger area begin on the left.
For the crystals there are a lot of methods, with Rhino or with Grasshopper
https://www.food4rhino.com/en/app/rhinopolyhedra
You could search for stable positions with my Nautilus plugin