Galena, Pyrite and Dolomite       Buick Mine, Viburnum Trend District, “Big Bear Trend”, Iron County, Missouri.  You may have seen these in larger sizes with the other big dealers (at big prices) and noted their uniqueness. Many are spinel law twins and even more interesting, many are bar shaped crystals instead of the traditional cubes. This one is 2.6 x 2.2 x 2.1 cm and dominated by a large, beautifully defined twin with traditional cuboctahedral crystals and dolomite.  It is a floater with no points of contact.    $120