For example, porphyritic andesite will have large phenocrysts of plagioclase in a fine-grained matrix.

As in CH chondrites, dusty material only occurs in discrete clasts and there is no fine-grained matrix.

The fine-grained matrix is generally fully hydrated and minerals inside chondrules may show variable degrees of hydration.

Breccia is a type of rock formed of broken fragments of minerals or rock cemented together by a fine-grained matrix.

Such found grains are isotopically-distinct clusters of material found in the fine-grained matrix of primitive meteorites, such as chondrites.

The quartz crystals exist in a fine-grained matrix, usually of micro-crystalline or felsitic structure.

Internal structure of the meteorite includes olivine macrocrysts embedded into a fine-grained matrix made of pyroxene and feldspar glass.

Fault breccia is a fault rock that consists of large fragments of rock in a fine-grained matrix.

The bottom layer of a debris avalanche deposit is the fine-grained matrix, which forms due to the shear at the base of the large, turbulent moving mass.

The mountain consists of this volcanic breccia, which is a rock made up of broken basalt fragments that are fused together in a fine-grained matrix.