OKF-137    Sphalerite with Siderite    Eagle Mine, Gilman, Colorado.  Ex. Jim Turek Collection.  A superior display piece from Colorado measuring 9 x 5 x 3 cm.  It sits on edge and displays a fully crystallized frontal face that is extremely aesthetic.  The siderites are tabular and light tan in color and perfectly dispersed within the sphalerites.  The sphalerites show two types of crystal face development: the first is highly lustrous mirror like faces, while the second harvest slightly lower luster with unique surface feature growths.  A great specimen for the Colorado collector.  $750 on sale for $675