Power stones that contain multiple crystalline or microcrystalline slices show a range of sensitivity as differentiated by their thickness that can allow the recognition and the manipulation of different energy levels in a single tool. The energy pathways in our bodies are comfortably thought of as initiating at a very fine level and collecting or branching as needed in our auric field. In healing practices, power stones of this nature may be used in diagnosis as the stone is passed through the auric field. Healing takes place at fine, discriminatory levels as well as levels that make up the gross physical sensations we associate with pain and discomfort. Of course every available means for diagnosis should be taken whenever possible. Power stones offer a way that relies on the auric interplay of the healer, seeker and the stone in a close setting with a known background energy definition. Appropriate healing techniques can then be applied.