Our tuning fork has a frequency of 528 hz.
Re-tuning is a simple process where by you use sound over your crystal to re-calibrate or cleanse it. It sends energy frequency vibration through the crystal, this enables the crystal to go back to it's original state or alignment. I use a tuning fork, but you could use crystals singing bowls or another high frequency instrument, an instrument you can feel the vibration. it doesn't matter what note is played. Our kits comes with a beautiful satin bag and cleaning cloth.