How did Frank Alpert connect the legend of Atlantis with the use of crystals?

Frank Alpert, a channeler within the New Age movement, integrated the legend of Atlantis into his teachings to promote the use of crystals as tools for healing and personal transformation.1

Alpert proposed that the ancient civilization of Atlantis relied on the power of crystals to sustain itself. He further claimed that the downfall of this legendary society was caused by its rulers' unwise and immoral use of these stones. By framing crystals as great reservoirs of energy with distinct healing and transformative powers, Alpert encouraged their use for personal benefit, despite critics noting the unscientific nature of these claims.1