This is a rock that contains fragments of limestone, usually set in a fine-grained matrix cemented with calcite. Other minerals such as quartz may be present in limestone breccia, as may particles of other rocks.

TEXTURE The grains are large and angular in contrast to the rounded fragments in conglomerate. The individual fragments in limestone breccia may contain fossils.

ORIGIN Found in transitional environments near continental margins. Limestone breccia may form as deposits at the base of cliffs. As water seeps through the cliff and the accumulated scree, it deposits calcite that will cement together the fragments.

Grain size: Very coarse

Classification: Detrital

Fossils: lnvertebrates

Grain shape: Angular