Gabbro
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Gabbro is a phaneritic, mafic, intrusive igneous rock formed from the slow cooling magma into a holocrystalline mass deep beneath the Earth's surface. Slow-cooling, coarse-grained gabbro has the same
Gabbro specimen from Duluth, Minnesota
Photomicrograph of a thin section of gabbro
A gabbro landscape – the main ridge of the Cuillin, Isle of Skye, Scotland
Cizlakite sample
Diorite
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Diorite is an intrusive igneous rock formed by the slow cooling underground of magma that has a moderate content of silica and a relatively low content of alkali metals. It is intermediate in composit
Orbicular diorite from Corsica (corsite)
Hornblende diorite from the Henry Mountains, Utah, US
Naqada II jar with lug handles; c. 3500–3050 BC; height: 13 cm (5 in); Los Angeles County Museum of Art (US)
Statue of Gudea I, dedicated to the god Ningishzida; 2120 BC (the Neo-Sumerian period); height: 46 cm (20 in), width: 33 cm (10 in), depth: 22.5 cm (8.9 in); Louvre