Rocks / Breccia, Hafren forest.

This specimen of breccia was collected about 15 years ago from the Hafren forest car park area, near Llanidloes, Mid Wales. The illustration is low tech, having been produced on my photocopier,  before digital cameras. I keep a photographic record of all my rocks and minerals, both printed, and on my computer. The breccia is Silurian in age, and is poorly sorted, with clasts of different sizes. The clasts are mostly angular and of different rock types, making it a polymitic specimen. The specimen is clast supported. i.e. the clasts are in close contact with each other, with the matrix filling the voids. All these features suggest that the clasts did not travel far, perhaps debris at the base of a cliff ,  or at the base of a steep slope.  

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