Gabbro Rock Sample - Characteristics, Composition & Geological Significance #3583266 (License: Personal Use)

The image displays a hand sample of gabbro, a mafic intrusive igneous rock formed from slow cooling of magma beneath Earth’s surface. Its coarse-grained texture reveals well-developed crystals of calcium-rich plagioclase feldspar and augite pyroxene, with possible minor olivine or amphibole. The rock’s dense, dark appearance reflects its high iron and magnesium content.

Used in educational geology resources, museum exhibits, and mineral identification guides; this image supports user intent to learn about rock classification, igneous petrology, or field identification techniques.