Small grained texture from small crystal size.
Probably limestone. :)
Basalt is an extrusive igneous rock, which means it has solidified from magma above ground.Read more: What_kind_of_rock_is_basalt
It would form into the rock basalt, an extrusive, mafic, igneous rock.
The volcanic rock can be classified as basalt. Basalt is a fine-grained igneous rock that forms from the solidification of lava flows. The smooth texture and small holes, known as vesicles, are characteristic features of basalt.
Igneous rock can be both intrusive and extrusive. Intrusive igneous rocks form from magma that cools beneath the Earth's surface, while extrusive igneous rocks form from lava that cools on the Earth's surface. Examples of intrusive igneous rocks include granite and diorite, while examples of extrusive igneous rocks include basalt and rhyolite.
Yes, Basalt is the most common extrusive rock
BASALT
A smooth, black rock is likely to be basalt. Basalt is an extrusive igneous rock that is commonly dark in color and has a fine-grained texture, giving it a smooth appearance.
Igneous rock, specifically basalt, is formed when lava cools quickly. Basalt is characterized by its fine-grained texture due to rapid cooling at the Earth's surface.
coarser grained
coarser grained
Probably limestone. :)
Cooling lava produces extrusive igneous rock, such as basalt.
Basalt is a type of rock, specifically an extrusive igneous rock that forms from solidified lava flows. It is composed mainly of minerals such as feldspar and pyroxene.
Basalt is an extrusive igneous rock, which means it has solidified from magma above ground.Read more: What_kind_of_rock_is_basalt
Extrusive rock of an igneous origin, formed from the cooling and solidification of lava. Typical examples include basalt, andesite and rhyolite.
basalt