Polymict conglomerate with extensively fractured clasts. These are predominantly limestone; a few are red in colour. Some show 'paesination' - microfracture constrained patterns of ironstaining like pietra paesina, and these also have a rich microfauna. The matrix is calcarenite.
Comments:
Matrix may be quartz grains cemented with calcite. Similar to, but more Fe-rich than no. 691.
References:
Further information:
Corsi's classification:
Class 10. Pudding-stones; ii. Italian pudding-stones