This is a 18" all gemstone necklace. The ancients believed crystals and stones have healing properties. It is true that stones vibrate at a certain frequency which can harmonize with ours. This necklace features Marble. This stone is said to be a grounding stone, it is also said to help with clarity and insight. There are other supporting stones in this piece Black Agate, Magnesite and Turquoise. Whether you believe in ancient wisdom or not this is wearable art from nature and a unique piece no one else will have. It is new and 1-of-a-kind.