What stones are best for cleaning Chakra?

http://www.sobrietystones.com/resources/GemBook/Stones/meanings_gemstones_amethyst.htm

You choose the stone you are trying but they are not the cards you can buy That Are variations on a theme, a bit like the anniversary of stone have some similarity, but also some differences. But I do not see why you need the stones, which are chemical structures often took the form of a destructive land to produce a profit economic. Just sit or lie down and think about cleaning them what you are working with light. Or understand why you think they should clean the chakras.

Stella’s Stones: Amethyst