Question

------ Define Obsidian.​

Answer 1

Answer:

Obsidian is another igneous rock. It Forms by quick cooling of lava above the ground.

It is black, smooth and glassy. Because of its sharp edge, it is used to make cutting tools.

It is also used in making jwellery and ornaments.

Thanks ❤️

Answer 2

$\huge\boxed{ \fcolorbox{blue}{yellow}{answer}} \:$

Obsidian is a type of igneous rocks which are formed by the volcanic eruptions.

these rocks are very hard and they dont have any types of pores inside them.