http://inspire.ec.europa.eu/codelist/LithologyValue/igneousRockINSPIRE Registry teamJRC-INSPIRE-SUPPORT@ec.europa.euhttp://inspire.ec.europa.eu/registry2015-08-18 17:31 PM CEST2015-08-18 17:31 PM CESTigneous rockRock formed as a result of igneous processes, for example intrusion and cooling of magma in the crust, or volcanic eruption.http://inspire.ec.europa.eu/codelist/LithologyValue/doleriticRock2015-08-18 18:02 PM CEST2015-08-18 18:02 PM CESTdoleritic rockDark colored gabbroic (basaltic) or dioritic (andesitic) rock intermediate in grain size between basalt and gabbro and composed of plagioclase, pyroxene and opaque minerals; often with ophitic texture. Typically occurs as hypabyssal intrusions. Includes dolerite, microdiorite, diabase and microgabbro.http://inspire.ec.europa.eu/codelist/LithologyValue/exoticCompositionIgneousRock2015-08-18 18:02 PM CEST2015-08-18 18:02 PM CESTexotic composition igneous rockRock with 'exotic' mineralogical, textural or field setting characteristics; typically dark colored, with abundant phenocrysts. Criteria include: presence of greater than 10 percent melilite or leucite, or presence of kalsilite, or greater than 50 percent carbonate minerals. Includes Carbonatite, Melilitic rock, Kalsilitic rocks, Kimberlite, Lamproite, Leucitic rock and Lamprophyres.http://inspire.ec.europa.eu/codelist/LithologyValue/fineGrainedIgneousRock2015-08-18 18:02 PM CEST2015-08-18 18:02 PM CESTfine grained igneous rockIgneous rock in which the framework of the rock consists of crystals that are too small to determine mineralogy with the unaided eye; framework may include up to 50 percent glass. A significant percentage of the rock by volume may be phenocrysts. Includes rocks that are generally called volcanic rocks.http://inspire.ec.europa.eu/codelist/LithologyValue/glassRichIgneousRock2015-08-18 18:03 PM CEST2015-08-18 18:03 PM CESTglass rich igneous rockIgneous rock that contains greater than 50 percent massive glass.http://inspire.ec.europa.eu/codelist/LithologyValue/intermediateCompositionIgneousRock2015-08-18 18:03 PM CEST2015-08-18 18:03 PM CESTintermediate composition igneous rockIgneous rock with between 52 and 63 percent SiO2.http://inspire.ec.europa.eu/codelist/LithologyValue/phaneriticIgneousRock2015-08-18 18:04 PM CEST2015-08-18 18:04 PM CESTphaneritic igneous rockIgneous rock in which the framework of the rock consists of individual crystals that can be discerned with the unaided eye. Bounding grain size is on the order of 32 to 100 microns. Igneous rocks with 'exotic' composition are excluded from this concept.http://inspire.ec.europa.eu/codelist/LithologyValue/porphyry2015-08-18 18:04 PM CEST2015-08-18 18:04 PM CESTporphyryIgneous rock that contains conspicuous phenocrysts in a finer grained groundmass; groundmass itself may be phaneritic or fine-grained.http://inspire.ec.europa.eu/codelist/LithologyValue/ultrabasicIgneousRock2015-08-18 18:05 PM CEST2015-08-18 18:05 PM CESTultrabasic igneous rockIgneous rock with less than 45 percent SiO2.http://inspire.ec.europa.eu/codelist/LithologyValue/ultramaficIgneousRock2015-08-18 18:05 PM CEST2015-08-18 18:05 PM CESTultramafic igneous rockIgneous rock that consists of greater than 90 percent mafic minerals.