Rock consisting of angular fragments of stones cemented by finer calcareous material.‘copious quantities of breccia’
- ‘It weights 751 grams and consists of breccia - sintered fragments of various minerals from lunar continents.’
- ‘Intrusive breccias can be the host for metallic ore deposits and aesthetic mineral specimens.’
- ‘In some breccia zones the rock fragments exhibit partial melting and reaction rims.’
- ‘A volcanic or igneous breccia forms during eruptive activities.’
- ‘Breccias are associated with mechanical weathering in regions of high tectonic activity.’
Late 18th century: from Italian, literally ‘gravel’, ultimately of Germanic origin and related to break.
We take a look at several popular, though confusing, punctuation marks.