Carrock Fell’s geology is unique in the Lake District in that it is predominantly composed of Gabbro, a rough igneous rock that also makes up the famous Black Cuillin on the Isle of Skye.
Feldspathoid, sometimes called a "foid", a class of mineral found in igneous rocks
Analysis of Apollo 14 samples suggests that there are five major geologic constituents present in the immediate landing area: regolith breccias, fragmental breccias, igneous lithologies, granulitic lithologies, and impact-melt lithologies.
The alluvial East China plain extends from just south of Beijing in the north, to the Yangzi river delta in the south, punctuated only by the igneous Shandong highlands and peninsula.
Most of the park is underlain by Triassic diabase, an igneous rock, and the many large, rounded boulders within the park are made of this material.
The igneous rocks of Moel Siabod can be seen behind the lakes which are linear but in the panorama appear to bend at the delta between the two.
Merensky Reef, a layer of igneous rock in the Bushveld Igneous Complex (BIC) in the Transvaal named after Hans
The Acasta Gneiss in the Canadian Shield in the Northwest Territories, Canada is composed of the Archaean igneous and gneissic cores of ancient mountain chains that have been exposed in a glacial peneplain.
The topography is highly suggestive of a volcanic crater and, given that the region's rocks are indeed igneous and there are hot springs, this gave rise to a common misconception that Poços de Caldas would be located inside the crater of a large extinct volcano.
Quercus alnifolia belongs to the endemic flora of the island and it is confined to the igneous geological complex of the Troodos Mountains.
His attention was specially directed to the study of the igneous and metamorphic rocks in Alpine regions and in various parts of England (e.g.: the Lizard in Cornwall, at Salcombe and in the Charnwood Forest), Wales and the Scottish Highlands.
Trap rock, form of igneous rock exhibiting polygonal vertical fractures