The phrase "a breccia" is correct and usable in written English.
It can be used in geological contexts to refer to a type of rock composed of broken fragments cemented together.
Example: "The geologist explained that the formation was primarily made up of a breccia, indicating a history of violent geological activity."
Alternatives: "a conglomerate" or "a clastic rock".
The Endeavour rock that Opportunity looked at, named Tisdale 2, is a breccia, and was smashed apart by the impact, then fused back together.
The repeated impact history of a particular rock can result in a breccia welded either into a strong, coherent mass or into a weak, crumbly mixture in which the matrix consists of poorly aggregated or metamorphosed fragments.
Beaudet, A. et al. Neutron microtomography-based virtual extraction and analysis of a cercopithecoid partial cranium (STS 1039) embedded in a breccia fragment from sterkfontein member 4 (South Africa).
Scanline surveys along the ore-controlling fault zones show an internal structure that comprises a damage zone, a breccia zone with clasts that have become rounded, and a breccia zone with lenticular clasts, and this complex architecture was formed during at least two compressional substages of deformation.
(a) Breccia textures with many crystalline clasts in Y-981971,51-1.
Next, the peak ring was covered by a layer of jumbled-up rocks, called a breccia, that contains chunks of blasted-up rock and impact melt.
Fig. 8. Thickness of the rock groups: a) Breccias; b) Melt; c) Cretaceous carbonates; d) Upper crust; e) Filling the post-impact basin.
In some locations, due to the abundance of xenoliths, the dike has the appearance of a limestone breccia in an igneous matrix.
The lunar meteorite Dhofar 489, with a weight of 34.4 g, is a feldspathic breccia including feldspathic lithology embedded in a much finer-grained and darker crystalline matrix (Takeda et al. 2006).
The first is classified as pure anorthosite 5 (Pand, and the second is a magnesian anorthosite with a granulitic breccia texture.
Dhofar 911 is a feldspathic breccia consisting of mineral fragments and lithic clasts in a dark fine-grained crystalline matrix, similar to that of Dhofar 489 (Takeda et al. 2006).
