INSPIRE
Registry

fine grained igneous rock

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Label:
fine grained igneous rock
Definition:
Igneous 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.
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Label Governance level Status
foiditoid eu-technical Valid
high magnesium fine grained igneous rock eu-technical Valid
phonolitoid eu-technical Valid
tephritoid eu-technical Valid
trachytoid eu-technical Valid
andesite eu-technical Valid