What do dacite and granodiorite have in common?

They are both vulcanic rocks.

Explanation:

Granodiorite is an igneous rock very similar to monzogranite, however it has a higher amount of plagioclase in its mineralogical constitution. Its effusive correspondent is dacite. It is an acidic, supersaturated, calcium-potassic, metaluminous (when hornblende), peraluminous or peralcaline rock, of subalcal (calcium-alkaline; peraluminous) or alkaline (equitic) character.

Explained

Explanation:

Granodiorite is an igneous rock, similar to that of granite. It has medium to coarse grain structure. It is among the most abundant intrusive igneous rocks. Whereas Dacite is the felsic extrusive rock, generally bluish grey or pale grey color. Its majority content is Silica, mostly found in volcanic zones. As far as commonality is concerned Dacite is the volcanic equivalent of Granodiorite.