You make the obsidian rock cycle by listening to your teachers instead of sleeping in class lazy!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Obsidian
Obsidian is an igneous rock.
Obsidian is in the Igneous rock group.
Obsidian is an extremely sharp type of glass, so it is often used to make knives and scalpels.
its used to make tools and jewlery
Obsidian
No. Obsidian is volcanic glass. Glass is amorphous and thus noncrystalline.
Obsidian is an extrusive felsic igneous rock.
Volcanic rock.
No. Obsidian is just one of many types of volcanic rock.
Obsidian
The common name for obsidian rock is volcanic glass.