What do all extrusive igneous rocks have in common?
Quick cooling means that mineral crystals don’t have much time to grow, so these rocks have a very fine-grained or even glassy texture. Hot gas bubbles are often trapped in the quenched lava, forming a bubbly, vesicular texture.
What is the most common type of extrusive igneous rock?
What are the characteristics of intrusive igneous rock and extrusive igneous rock?
What is the characteristic of the crystals of extrusive rocks?
What is the common examples of extrusive igneous rock?
Which characteristic is best for identifying whether a rock is intrusive or extrusive?
What common characteristic do intrusive and extrusive rocks have in common?
What is the texture of extrusive igneous rock?
Which of the following is a characteristic of igneous rocks?
Firstly, they do not contain any fossils. These rocks rarely react with acid and do not have any layering usually. Further, they can be composed of two or more minerals and can find them in light or dark colours, both. They are usually made of mineral crystals of different sizes.