Power Wands made with chakra stones. The Power Wands made with chakra stones are ideal for Reiki and Gem therapy. The approximate measurements of the chakra wand are: Medium size: Between 17 cm to 20 cm. Average weight: 120 gr. The stones are used in gem therapy to benefit the Chakras and act according to their colors. The use of minerals, according to natural therapies, helps to harmonize and open the energy centers. The stones corresponding to the chakras work as amplifiers of Chi (prana) energy, facilitating the flow through the chakras.