Wormlike elongated clusters of splendent, brassy yellow pyrite totally cover a matrix of crystallized enargite, here. In some cases the pyrite clusters are at right angles to each other, standing out nicely and giving this a very 3-dimensional surface. In general, fine mineral specimens from Taiwan are uncommon and this is an extremely showy piece from a classic mine (now defunct). Ex Eugene Sensel collection, from David New in 1975