Jade.

Jade is two minerals sharing one name. Nephrite is a fibrous calcium magnesium silicate of the amphibole group, and jadeite is a pyroxene of similar appearance but distinct chemistry and crystal structure. The two were not properly distinguished by Western mineralogy until 1863, by which point both had carried thousands of years of artistic tradition under the single name. Nephrite is slightly softer and tougher (its interlocking fibres make it remarkably resistant to breakage), while fine imperial jadeite from Myanmar can take a saturated emerald-green colour that nephrite never reaches.

The Chinese tradition of jade is the deepest, with continuous use in ritual, ornament, and burial from the Neolithic Hongshan culture forward. The Confucian list of jade's eleven virtues (warmth as benevolence, smoothness as wisdom, sound as music, and so on) shaped not only the stone's symbolism but the very word for jade in classical Chinese aesthetics. Mesoamerican jadeite, mostly from the Motagua valley in Guatemala, carried equivalent ritual weight in Olmec and Maya cultures, and Maori pounamu (New Zealand nephrite) remains taonga, treasured ancestral material, in modern Maori tradition.

In contemporary crystal practice jade sits with the heart chakra and reads as a stone of patient cultivation rather than fast catharsis. The piece is for the long virtues: steadiness, fairness, wisdom that ripens. The market includes many imitations, from dyed quartz to glass to lower-grade serpentine sold as new jade, so honest sellers and clear treatment disclosure matter.