Nephrite

Nephrite is an exceptionally tough jade material made of interlocking tremolite-actinolite fibres. It it serves tool, status and ritual traditions in China, Central Asia, Māori culture and Northwest America.

Its physical identity is distinct from spiritual interpretation. It symbolizes virtue, continuity, protective endurance and ancestral connection. These correspondences are symbolic uses in modern crystal culture, not measured mineral effects.

Lukewarm soapy water and a soft cloth suit general care; avoid impact, thermal shock and harsh chemicals. Spiritual interpretations belong to belief and personal experience; they do not replace medical diagnosis or treatment. Mineral dust must not be inhaled during cutting or grinding.

Sources: GIA Gem Encyclopedia, Mindat mineral database, Metropolitan Museum gem history.