The Bracelet Chains With S925 silver skeletons and Natural solid black onyx, it was absolutely worth the moneyMaterials- Half Skull Bead Sterling silver Black Oxide- Signature Brass bead Brass Black oxide- Knot Stoppers Brass Black oxide Finishing- Natural solid black onyx 10mmOne of the most nightmarish and haunting symbols throughout history has been the human skull. It's sometimes frightening, sometimes a warning, and sometimes a friendly reminder that eventually death claims us all. This simple yet masterfully designed bracelet features skull inspired by pirates, treasure, and warnings on ancient maps. It's definitely a statement, a conversation piece, and is great for a variety of looks and styles.Natural solid black onyxA solid, pure black-colored onyx without any bands or layers is known as black onyx. This type of onyx is rarely found in nature,most black onyx found commercially are usually other forms of Chalcedony that have been dyed black.We use natural unprocessed black onyx what have a higher value than the treated type.