List of Igneous Rocks

• Adakite – A class of intermediate to felsic volcanic rocks containing low amounts of yttrium and ytterbium.
• Andesite – An intermediate volcanic rock.
• Alkali feldspar granite – A granitoid in which at least 90% of the total feldspar is alkali feldspar.
• Anorthosite – A mafic intrusive igneous rock composed predominantly of plagioclase.
• Aplite – A fine-grained intrusive igneous rock type similar to granite.
• Basalt – A magnesium- and iron-rich extrusive igneous rock.

A'a – Basaltic lava with a crumpled appearance.
Pahoehoe – Basaltic lava with a flowing, often ropy appearance.

• Basaltic trachyandesite

Mugearite – Oligoclase-bearing basalt, comprising olivine, apatite, and opaque oxides.
Shoshonite – A potassium-rich variety of basaltic trachyandesite.

• Basanite – A silica-undersaturated basalt.
• Blairmorite – Rare porphyritic volcanic rock.
• Boninite – Ultramafic extrusive rock high in both magnesium and silica.
• Carbonatite – Igneous rock with more than 50% carbonate minerals.
• Charnockite – A type of granite containing orthopyroxene.

Enderbite – An igneous rock of the charnockite series.

• Dacite – Volcanic rock intermediate in composition between andesite and rhyolite.
• Diabase, also known as dolerite – An intrusive mafic rock forming dykes or sills.
• Diorite – Intermediate intrusive igneous rock composed principally of plagioclase feldspar.

Napoleonite, also known as corsite – A variety of diorite with orbicular structure.

• Dunite – An ultramafic and ultrabasic rock from Earth's mantle and made of the mineral olivine.
• Essexite – a dark gray or black holocrystalline plutonic rock.
• Foidolite – A rare coarse-grained intrusive igneous rock in which more than 60% of light-coloured minerals are feldspathoids.
• Gabbro – A coarse-grained mafic intrusive rock.
• Granite – common type of intrusive, felsic, igneous rock with granular structure.
• Granodiorite – A phaneritic-textured intrusive igneous rock similar to granite.
• Granophyre – A subvolcanic rock that contains quartz and alkali feldspar in characteristic angular intergrowths.
• Harzburgite – An ultramafic and ultrabasic mantle rock. Found in ophiolites.
• Hornblendite – Plutonic rock consisting mainly of the amphibole hornblende.
• Hyaloclastite – A volcaniclastic accumulation or breccia.
• Icelandite – An iron rich, aluminium poor andesite.
• Ignimbrite – A variety of hardened tuff.
• Ijolite – An igneous rock consisting essentially of nepheline and augite.
• Kimberlite – Igneous rock which sometimes contains diamonds.
• Komatiite – An ultramafic mantle-derived volcanic rock.
• Lamproite – Ultrapotassic mantle-derived volcanic or subvolcanic rock.
• Lamprophyre – An ultramafic, ultrapotassic intrusive rock dominated by mafic phenocrysts in a feldspar groundmass.
• Latite – A silica-undersaturated form of andesite.

• Lherzolite – An ultramafic rock, essentially a peridotite.
• Monzogranite – A silica-undersaturated granite with <5% normative quartz.
• Monzonite – Igneous intrusive rock with low quartz and equal plagioclase and alkali feldspar – a plutonic rock with <5% normative quartz.
• Nepheline syenite – A silica-undersaturated plutonic rock of nepheline and alkali feldspar.
• Nephelinite – A silica-undersaturated plutonic rock with >90% nepheline.
• Norite – A hypersthene-bearing gabbro.
• Obsidian – Naturally occurring volcanic glass.
• Pegmatite – Igneous rock with very large interlocked crystals.
• Peridotite – A coarse-grained ultramafic igneous rock.
• Phonolite – A silica-undersaturated volcanic rock; essentially similar to nepheline syenite.
• Phonotephrite – A volcanic rock with a composition between phonolite and tephrite.
• Picrite – An olivine-bearing basalt.
• Porphyry – Textural form of igneous rock with large grained crystals in a fine matrix.
• Pumice – Light coloured highly vesicular volcanic rock.
• Pyroxenite – Igneous rock - a coarse grained plutonic rock composed of >90% pyroxene.
• Quartz diorite – A diorite with >5% modal quartz.
• Quartz monzonite – An intermediate plutonic rock, essentially a monzonite with 5–10% modal quartz.
• Quartzolite – An intrusive rock composed mostly of quartz.
• Rhyodacite – A felsic volcanic rock which is intermediate between a rhyolite and a dacite.
• Rhyolite – An igneous, volcanic rock, of felsic (silica-rich) composition.
• Comendite – A hard, peralkaline igneous rock, a type of light blue grey rhyolite.
• Pantellerite – A peralkaline rhyolite type of volcanic rock.
• Scoria – Dark vesicular volcanic rock.
• Shonkinite – Intrusive igneous rock – a plutonic rock.
• Sovite – A coarse-grained carbonatite rock.
• Syenite – Intrusive igneous rock – A plutonic rock dominated by orthoclase feldspar; a type of granitoid.
• Tachylyte – Essentially a basaltic glass.
• Tephriphonolite – A volcanic rock with a composition between phonotephrite and phonolite.
• Tephrite – A silica-undersaturated volcanic rock.
• Tonalite – A plagioclase-dominant granitoid.
• Trachyandesite – An alkaline intermediate volcanic rock.
• Benmoreite – A silica-undersaturated volcanic rock of intermediate composition - sodic trachyandesite.
• Trachybasalt – A volcanic rock with a composition between basalt and trachyte.
• Hawaiite – a sodic type of trachybasalt, typically formed by ocean island volcanism.
• Trachyte – A silica-undersaturated volcanic rock; essentially a feldspathoid-bearing rhyolite.
• Troctolite – Igneous rock – A plutonic ultramafic rock containing olivine, pyroxene and plagioclase.
• Trondhjemite – A light-colored intrusive igneous rock – A form of tonalite where plagioclase-group feldspar is oligoclase.
• Tuff – Rock consolidated from volcanic ash.
• Websterite – A type of pyroxenite, composed of clinoproxene and orthopyroxene.
• Wehrlite – Ultramafic rock - An ultramafic plutonic or cumulate rock, a type of peridotite, composed of olivine and clinopyroxene.