Obsidian is in the Igneous rock group.
Obsidian is in the Igneous rock group.
Obsidian falls under the group of Extrusive Volcanic Rock of very fine texture. Obsidian is generally called Volcanic Glass.
A schist rock belongs in the metamorphic rock group.
Obsidian is an igneous rock.
Diamond belong to the Igneous rock group!!
the answer to the is sedementary
No. Obsidian is volcanic glass. Glass is amorphous and thus noncrystalline.
Obsidian is an extrusive felsic igneous rock.
No. Obsidian is just one of many types of volcanic rock.
Volcanic rock.
The common name for obsidian rock is volcanic glass.
It is a sedimentary rock.