Here is the potassium alum crystal that i have done in 2008-08-16 in my new mini crystal lab, there is also my new shema and some of my new music, so it is a long video on only one potassium alum crystal pyramid, this crystal came from a crystal generator, and when the crystal was growing i have stopped it and then i put a metallic pyramid over the crystal, then a let the crystal growing again and it had grow all around the metallic pyramid ! at the end the metallic pyramid is inside an potassium alum pyram