Moss Agate

Moss Agate is a decorative variety of chalcedony recognised for its translucent body and distinctive mineral inclusions that resemble moss, branches, foliage or miniature landscapes. Despite its name, Moss Agate often lacks the regular banding normally associated with true agate. It is therefore better understood as included chalcedony within the wider Quartz family. Its green patterns are commonly associated with chlorite-group minerals and other iron- or manganese-bearing inclusions, although the exact minerals can vary between specimens. Brown, red and black areas may result from iron or manganese oxides and other mineral material trapped within the chalcedony. The inclusions are not fossilised moss, plants or algae. Their organic-looking shapes are created entirely by mineral growth and deposition. Moss Agate commonly forms in cavities, fractures and volcanic rocks where silica-rich fluids deposit chalcedony while other minerals become enclosed within it. It has been used for jewellery, seals, carvings and ornamental objects for centuries and remains especially popular as palmstones, cabochons, spheres, towers and polished freeforms.