abundance of iron magnesium and calcium
gabbro
it is an intrusive igneous rock with composition equivalent of basalt.it is dark colored due to high concentration of dark minerals;olivine,biotite,hornblende.
His eyes are big and dark. Almost completely black.
dark brown
A dark brown
Gabbro is a type of rock that is dense and dark in color. It is made up of parts of oceanic crust, which is highly compressed.
Gabbro is a dark rock with visible crystals.
black
gabbro
black black
Granite is lighter because its composed of felsic minerals while gabbro is made up of dark ferromagnesian minerals.
Gabbro is a group of dark, coarse-grained, intrusive mafic igneous rocks. They are often found beneath the Earth's surface where they form into crystals.
The counterpart of Granite is Rhyolite,the counterpart of Gabbro is Basalt. Gabbro is mafic(Dark coloured) ,Granite is felsic (light coloured) Granite forms from magma of Granitic composition while Gabbro forms from magma of Basaltic composition.
Basalt, Scoria, Diabase, Basaltic Glass, Gabbro. Obsidian may appear to be mafic due to its dark color but it is actually felsic
Gabbro is a ingenious rock from portions of Canada. It is estimated to be well over a billion years old and one of the oldest types of rock.
Gabbro.
Gabbro