Jasper and sard are opaque styles of chalcedony, a microcrystalline type of quartz. Jasper reveals a variety of colours and patterns attributable to different mineral inclusions, producing hues from earthy browns and reds to vibrant greens and blues. Sard, in distinction, usually shows reddish-brown hues, starting from a pale, fleshy tone to a deep, brownish-red, usually likened to carnelian however usually darker.
These gem stones maintain historic and cultural significance. Their sturdiness and vibrant colours made them well-liked decisions for ornamentation and ornamental arts in historic civilizations. Proof of their use may be present in jewellery, seals, and inlays relationship again millennia. Variations in shade and sample usually influenced symbolic interpretations, associating particular colours with specific properties or deities.
