Jadeite is formed in metamorphic rocks under high pressure and relatively low temperature conditions. Minerals associated with jadeite include:, aragonite and serpentine. Rocks that consist almost entirely of jadeite are called jadeitite. In all well-documented occurrences, jadeitite appears to have formed from subduction zone fluids in association with serpentine. Jadeitite is resistant to weathering, and boulders of jadeitite released from the serpentine-rich environments in which they formed are found in a variety of environments.