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British Columbia (BC), Canada is the largest producer and exporter of nephrite jade in the world. All of the known jade deposits in BC are of the nephrite variety, occurring at over fifty known occurences. Nephrite jade are typically found in bedrock deposits, boulder fields or talus occurrences. The bedrock occurrences are typically lens shaped and occur at or near contacts of mafic-ultramafic rocks (mainly serpentinite).