Rockcrystal is the cleanest quarz, no other minerals are inside and the color is white. They are very powerful and give much energy. Other stones you can reactivate when you put them onto a Rockcrystal. Our Rockcrystals come from Brasil, China and Arkansas. So the points of the crystals are very different, some are hugh and thick, others very fine and thinn. In the sunlight all of them are shining very much.