Latite is an igneous, volcanic rock, with aphanitic-aphyric to aphyric-porphyritic texture.
Its mineral assemblage is usually alkali feldspar and plagioclase in approximately equal amounts.
[1] Biotite, hornblende, pyroxene and scarce olivine or quartz are common accessory minerals.
The composition of rhomb porphyry places it in the trachyte - latite classification of the QAPF diagram.
Latite is found, for example, as lavas in Bulgaria[3] and as intrusive laccoliths and sills in South Dakota, USA.