The Expanded Spectrum is an online exhibition that features a collection of crystal stones. The exhibition serves to explore the world of crystals by linking them to their variations in color. To understand stones from this perspective, the different colors of the spectrum are shown individually, and their importance in color healing is explained. Over thousands of years of handling, wearing, and use, different crystals and minerals have become associated with particular healing effects. It is said that if you are drawn to a certain crystal or stone it is because it resonates with you. In the same way, different rays of color have different effects. Choosing crystals based on color is a way to find out more about yourself and your energy needs.