Beautiful Blue Apatite Necklace with Silver Color Findings and uses 3mm Faceted Beads and is 17" Long with 2" Extender. *17" Long with a 2" Extender. *Blue Apatite is associated with the Throat chakra. *All natural semi-precious gemstones. -This picture is an representation of the type and quality of the gemstone you will be receiving. As you know, there are slight variations due to the natural character of this product. -All information about the metaphysical properties of the crystals is for reference only. It is a combination of research on how the gemstones have been used by different cultures today and throughout history. We do not recommend using crystals as a substitute for conventional medical or psychological treatment and do not claim they cure or heal medical conditions. Please always listen to the advice of your medical professional and only use crystals as a complimentary therapy in addition to medical treatment.