Attractive necklace reflecting the popularity of agates in victorian jewellery moss agate is a form of chalcedony which includes minerals of a green colour embedded in the stone forming filaments and other patterns suggestive of moss the use of agates in jewellery dates from the end of the stone age neolithic agate beads believed to be 9 000 years old have been found in anatolia presentshyday turkey carved into cameos during the renaissance they gained renewed favour during the lateshy19