An intrusive igneous rock that develops from mafic magma and whose mineral crystals are coarse. Mineralogically this rock is identical to basalt.

A coarse-grained igneous rock, chemically equivalent to a basalt.

type of igneous rock, 1823, introduced in geology 1809 by German geologist Christian Leopold von Buch (1774-1853), from Italian (Tuscan) gabbro, a word among the marble-workers, of obscure origin; per [..]

Type of igneous rock of course-grained nature, composed primarily of calcium-rich Plagioclase feldspar, pyroxenes, amphiboles, and Olivine.

Highly mafic igneous plutonic rock, typically dark in color; rough plutonic equivalent of basalt.

An igneous granular stone composed chiefly of pyroxene, augite or diallage, and plagioclase.

(n) one of a family of granular intrusive rocks

A type of dark, coarse-grained, intrusive mafic igneous rocks chemically equivalent to basalt. The rocks are plutonic, formed when molten magma is trapped beneath the Earth's surface and cools into a crystalline mass.

A dark, coarse-grained intrusive

 A coarse grained intrusive igneous rock, similar in composition to basalt, but which cool very slowly to produce large crystals. It is typically is associated with large scale intrusive igneous bodie [..]

a coarse–grained mafic igneous rock consisting of plagioclase feldspar and pyroxene. Olivine may also be a major constituent, while hornblende, biotite, quartz, magnetite and ilmenite are common minor [..]

A dark, coarse-grained igneous rock. Geiger counter

A dark coloured coarse grained igneous intrusive rock comprising the minerals pyroxene and feldspar.

A dark, coarse-grained igneous rock. Galena

(rock) A name originally given to a kind of serpentine, and now generally used for a coarsely crystalline, igneous rock consisting of lamellar pyroxene and labradorite. * '''2004''', Richard Fortey [..]