Double terminated wands and points are used to both send and receive energy, for example if you pointed your wand towards the Full Moon you could call down that energy through the top point of the crystal and then direct it towards your place of choice through the second point. A great tool to use when activating crystal grids, casting circle, crystal healing, and ritual.
Amethyst is an extremely beautiful and versatile crystal which spiritually can be used to connect to the upper chakras, aid you in meditation and journey work, divination, and assist you in spiritual growth. Amethyst also calms and relaxes, aids sleep, and is a powerful crystal for psychic protection. It connects you with the violet ray and supports spiritual awakening.