Crystals have fascinated humanity since time immemorial. The first objects that hominids collected, despite having no practical use for them, were quartz and calcite crystals. There is indisputable evidence that at least 800,000 years ago, the brain of Homo erectus was already capable of identifying and appreciating crystals. The questions are inevitable: Why were our ancestors drawn to crystals? Since when? What properties captivated them? And could this fascination have played a role in the course of our history?
