Most agates occur as nodules in volcanic rocks or ancient lavas. Agate can also be found in the veins or cracks in volcanic or altered rock. Such agates, when cut transversely, display a succession of parallel lines, therefore giving a banded appearance to the section. Such stones are known as banded agate, riband agate and striped agate and look very appealing as it can be seen in this necklace. Garnets are a group of silicate minerals that have been used since Bronze Age as gemstones.
To discover more about jewellery in the Ancient World, please visit our relevant post: Jewellery in Antiquity.