As a crystal lover, it's natural that I also love the platonic solids. Most crystals basic structure reduce to either an octahedron (or cube), or a tetrahedron. Here are some beautiful examples of jewelry by Lotus Lazuil.
Malachite is one of the coolest minerals out there. It's recently been emerging from the design world in many incarnations. Metaphysically, it's a stone of great power, representing the heart chakra's green ray. The ancient Egyptians buried their pharaohs with malachite amulets over their hearts for protection. The Russians turned it into a decadent interior decoration. To me, it has a haunting beauty.
I've always wondered what it would be like to see auras and energy. Very interesting group of people behind this project (I'm so going to try and get these guys for my wedding)