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 bright and shiny metallic group of crystals with highly modified surfaces and apparent dissolution and re-growth features. The dominant forms are cubes and octahedrons with multiple spinel twins. Very fine small cabinet specimen from mining in 2006. 3.5 x 7.5 x 8 cm.