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