Is the crystal healing I have done truly augmented by the presence of those minerals or is it only divine energy making everything happen?

It is a combination of the two. The crystal power was real, and you witnessed this first hand and understand this to be true. But what was desired was the divine participation knowing the crystals have the desired property to be an adjunct and a powerful ally in the quest for information and understanding. That created a powerful combination because here there was the application of intention for a positive outcome through divine participation by calling on the minerals as a form of consciousness to be of help in this. So all the key components were present and working together in unison. You were invoking the highest of helpers to assist and engaging the most powerful gateways for communication of energy and information in the form of the crystals to facilitate the experiencing and especially the intuitive awareness to obtain feedback on the process itself. This facilitated delivery of healing as well in the same manner, so is a very nice way to proceed with any undertaking where there needs to be focus and heightened awareness, in particular, so that you can understand and appreciate and get feedback about what it is taking place. It is more of benefit to the practitioner than to the client in the sense that the divine will do what is requested. This will not necessarily include the practitioner being in on the details. With the crystal array, the ability to communicate information about the strategy and the outcome to the practitioner is enhanced greatly and this creates a much more satisfying experience. And that awareness and confidence gained by the practitioner will be shared with the client in most cases and will add to the benefit of the healing work by bringing it all to life, and that aura of expectation will be greatly beneficial to the overall success of the outcome.