Chalcopyrite and sphalerite. Çeyeli, Turkey
250µm
Very finely banded ore comprising fine-grained chalcopyrite (yellow) and sphalerite (grey). Thin veinlets parallel with the layering carry coarse-grained chalcopyrite and sphalerite (top right). The individual minerals can be resolved at higher magnifications.
Polished block, plane polarized light, x 80, air
