Dendritic Opal is a rare variation of Opal with distinct physical and chemical properties. It is composed of silicon dioxide, water, and various trace elements, including manganese and iron. This crystal is believed to be a stone of transformation and growth, both physical and spiritual. According to ancient folklore, it was used by shamans and healers to enhance their spiritual connections and promote personal growth. Opals are stones of great magic & good fortune making them fantastic for manifestation of all kinds. A powerful ascension stone. All opals are fierce protectors of light, keeping us surrounded in a force field of radiant light. They increase emotional strength & open the mind to its higher self. Highly protective, Opals deflect negative energy. Palm stones create a direct channel between you and the crystal's energy. Use them during meditation, crystal healing, or regaining focus throughout the day. Please note because each stone is unique, there will be differences in shape and colour in each item due to naturally occurring variances. Beautifully polished and like all our crystals, ethically sourced. Measurements: Medium: approx. 5cm x 4cm and weigh between 45-95 grams. Large: approx. 7cm x 5.5cm and weigh between 140-150 grams.