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.
Obsidian is a naturally occurring volcanic form of glass.
A schist rock belongs in the metamorphic rock group.
Obsidian is an igneous rock.
how can a blue obsidian rock be blue
the answer to the is sedementary
Diamond belong to the Igneous rock group!!
No. Obsidian is volcanic glass. Glass is amorphous and thus noncrystalline.
No. Obsidian is just one of many types of volcanic rock.
Volcanic rock.
Obsidian is an extrusive felsic igneous rock.