In the wooded hills near the village of Kerrouchen, agates are found in a small area that has been intensively collected over the years. Occasionally a beautiful large nodule is encountered during agricultural cultivation, but generally agates here have become rare. In addition, there is now a fee for collecting. The form of the agate nodules is steeply hat-like to conical. Among the features of Kerrouchen agates are dendrites and plumes, which can consist of red and yellowish ferric oxides. Pseudomorphs after needle-like mineral crystals also occur here. Banding in pastel pink and yellow is common, while intensive colors are very rare. Grey and white banded agates with a pronounced shadow effect are encountered. Kerrouchen agates may reach 30cm (12 inches) in diameter.