A classic oldtimer from the Dan Ehrlich Collection, he got it by exchange of African specimens to the University of Chicago in the 1960s and 1970s. This is a protected pocket in tough matrix, featuring a 1.2 cm spray of millerites on siderite druse. Classic for the locale, and very, very rare on the market! I have seen similar priced all over the spectrum, but generallymuch higher than this, for the specialist East Coast market.