Brown in color
BLACK dumb nut
how can a blue obsidian rock be blue
Obsidian is an igneous rock. However it differs from other rocks because it contains no minerals. It consists of natural glass, which is not a mineral because it has no crystal structure.Answers from McDougal Littell, Earth Science book
no
Obsidian
obsidian rocks are red and black also sometimes orange
BLACK dumb nut
Obsidian is a beautiful rock. It's description is pretty simple, it is a rock that formed out of cooled lava, and is black in color.
Obsidian is a naturally occurring volcanic form of glass.
Obsidian is an igneous rock.
? Wholesale $.50 A Lb. ? Retail $1.00 - $12.00 a Lb. Obsidian is glass, and the value depends on the color it is and the type it is
Obsidian is in the Igneous rock group.
how can a blue obsidian rock be blue
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.