The seventh isn't actually a class but addresses the non-crystalline minerals.

Through the help of science and the creation of a crystal class system, we are able to organize crystals into six/seven categories that match their internal crystal structure with categories that relate to how the crystals can assist us. Understanding the energy matrices with crystals, forms the basis for selecting, arranging and using crystals on a crystal grid. He teaches that through modern science we can actually see six secret energy structures of crystals which has helped to unravel much of their mysteries. No matter what your needs, with a little knowledge you can construct your own highly effective Crystal Grid to align and amplify the Universal Life Force for any purpose. In the case of Grids, there is definitely strength in numbers. Think of Crystal Grids as you having a whole team of healers focusing on one specific and specialized area. Crystal Grids can often be more powerful or effective than individual crystals because you are combining a variety of crystals energies to work together. Individual crystals are wonderful and effective on their own, but there are times when something more is needed. Creating and utilizing Crystal Grids is a powerful tool to add to your self-healing tool belt. A Crystal Grid is utilizing the benefits of a variety of crystals in a certain arrangement in combination with Sacred Geometry, Colour Rays, Universal Life Forces (sun, moon & earth) and Healing Affirmations to achieve a specific outcome.

Types of crystal grids