Nice Quality Raw Aquamarine Piece. Aquamarine is an ancient talisman used by the Romans to purify water, and to guarantee safety when traveling by sea. [Mella, 16] It was carried by sailors as a talisman against drowning. [Hall, 67] Aquamarine is a Seeker Energizer crystal. Seekers contain the crystal energy structure that aligns the natural energy of the crystal to the natural power of the human mind to find the way to new horizons and new capabilities. Aquamarine was believed in ancient times to counteract the forces of darkness and to invite the protection and favor of the spirits of light.