The Mineral Set includes 12 Tuning Forks that tone the frequency of 12 minerals that are contained in the physical body. The frequencies were discovered by Barbra Hero and The International Lambdoma Research Institute.
Are you wanting a frequency for something other than what is included in this set? We can make forks for any element in the Periodic Table of the Elements! Just let us know what you are needing and we'll make it for you.