The 4096 Hz Crystal Tuner, also known as the “Jacob’s Ladder” fork, is based on one of the known frequencies of quartz. It is also the 9th harmonic of 8Hz - the fundamental tone of the Earth. This fork is best played by gently tapping it on the rounded end of a single pointed quartz crystal wand. This amplifies the energy of the crystal. You can also point the crystal at a specific location on the body and then tap the tuning fork against the crystal. The vibration is then amplified as it passes through the crystal in a focused beam of energy.