I was jaded the last time I visited Antigua, Guatemala. Bought a black, green and white jade ring. Never heard of blue jade, though. Anyway, the common knowledge in Antigua is that jade is REALLY abundant, and that the value is in the carving, since jade is so hard. Riding back to Belize from Copan, Honduras, I saw some blocks of jade sitting by the highway waiting to be hauled away. These blocks were the size of a 1978 Dodge Van.