A BIG and super-rich specimen of bright, bladed wulfenites, with superb glassy luster, on a layer of powdery yellow mimetite. Ex. Eugene Sensel collection, comes with his label. These old-timers are very hard to obtain now. There is a handwritten note with this specimen that shows it to have been purchased (by Sensel?) in 1959, for $25 (which was good money for a rock half a century ago.). The back of the Sensel label shows it to have been in the Hauck collection in 1972. These have of course become a lot rarer since then. This is a large, unusually impressive plate. Although there is some damage, it is largely intact and glistens with color...and glassy luster makes it sparkle mightily, too. This is from the Collins Vein, 9th Level of the mine. Very characteristic old material!