Abstract: In the upper levels of Aşıgediği Formation which constitutes the youngest unit of the Niğde Massif, viridine gneisscrops out within the marbles, together with a complex consisting of amphibolite, greenschist, meta-gabbro, serpentinite andpyroxenite. The rock, containing Mn silicates such as piedmontite and allurgite as well as viridine which is a very rare form ofandalusite, is fine-grained, banded textured, and occurs as discontinous bands and lenses.Its banded texture, high manganese content and association with the above rocks show that the protolith of viri-dinegeneiss is comparable to that of the sedimentary rocks developed around the fracture zones of modern oceans. Thus, the viridinegneiss and the equivalent rocks do not belong to the environment in which the Aşıgediği Formation has been deposited, and theyshould have been added to the sequence later.