What I think would be additionally helpful would be to see some comparative information on the similarity or dissimilarity of the stones recovered from this variety of places. If it all comes from Formosa/Taiwan, I would expect it to be predictably translucent green with or without small darker spots—and to be recognizable, on sight, as "Taiwanese jade." However, I don't know how many varieties of jade there might be from this source (apart from what I have seen and own).

Jamey