Tiny traces of metals such as iron, copper, manganese, chromium, or lithium can significantly affect a crystal's energy. Dr. Carl (or Karl) Ludwig von Reichenbach was one of the first scientists to study the unusual phenomena associated with crystals. He discovered that gemstones possess a force field that, while invisible and imperceptible to most people, interacts with their surroundings. Every self-organizing system, whether a mineral or a human, acts as an oscillator with a specific frequency. When the frequency of a gemstone aligns with that of a person, resonance occurs, allowing for an exchange of energy and information.