Abstract: The lead and zinc occurrence of Karamağara kuyusu (Keskin-Ankara) is within the contact zone between the limestones and granitic rocks and also within the spilitic rocks. The mineralization is related to the hydrothermal solutions originating from a granitic magma.The ore samples have been studied under the ore microscope and the following minerals have been observed:Galena (two types), sphalerite, hematite, chalcocite, wittichenite, pyrite, chalcopyrite, bornite, and coveuite. Theinteresting textures and intergrowths observed among these minerals indicate that they are formed at high temperatures.