The Kruchev dol Mine is the best location in Madan at this time. Superb galenas in combination with sphalerite, quartz and chalcopyrite are being found in a variety of pockets on two major producing levels, namely, the 450 and 500. Some of the finest specimens in the history of Madan are now available. This is a small cabinet specimen of spinel twins with superb secondary growth on the octahedron. The secondary faces are aligned in parallel so they reflect brilliantly when rotated. Mined 2007. No damage. 4.5 x 5 x 6.5 cm.