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obsidian rocks are red and black also sometimes orange
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∙ 11y ago
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What is a glassy rock?
Obsidian is a naturally occurring volcanic form of glass.
What igneous rock has no visible crystals?
Granite is a coarse grained igneous rock without Pyroxene.
Where does obsidian come from?
Obsidian is molten silica (read sand) which has cooled rapidly after a volcanic eruption into brittle glass and is the reason why it chips easily into blades. Iron and magnesium give obsidian its dark color.
Will a obsidian rock float on water?
No it will not.
Is obsidian rock organic or chemical?
Obsidian is a volcanic glass which forms when a high silica melt solidifies quickly after eruption. Organic and chemical are terms used to classify sedimentary rock. Obsidian is an igneous rock type.
What is the color of a obsidian rock?
black
What color is a obsidian rock?
BLACK dumb nut
What do an obsidian rock look like?
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.
What is a glassy rock?
Obsidian is a naturally occurring volcanic form of glass.
Is obsidian metamorphic igneous or sedimentary?
Obsidian is an igneous rock.
How much is the rock obsidian in money?
? 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
What does rock group does obsidian belong to?
Obsidian is in the Igneous rock group.
How does obsidian rock get its different colors?
how can a blue obsidian rock be blue
Is obsidian extrusive rock?
No. Obsidian is volcanic glass. Glass is amorphous and thus noncrystalline.
Is volcanic rock obsidian?
No. Obsidian is just one of many types of volcanic rock.
Teotihuacan is famous for artifacts made from?
Volcanic rock.
What is the obsidian rock type?
Obsidian is an extrusive felsic igneous rock.
