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how can a blue obsidian rock be blue
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∙ 9y ago
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∙ 11y agolava!
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Which best explains the glassy look of obsidian?
The fact that obsidian IS glass. It is a naturally occurring form of volcanic glass. Different impurities give it different colors, usually black or shades of gray.
Does obsidian rock float?
no
A black rock formed from cooled lava?
Obsidian
Which rock is igneous and is black?
obsidian rock
What is the parent rock of obsidian?
the parent rock of obsidian is magma, because it is made from quickly-cooling magma after a volcanic eruption.
How are granite and obsidian are different?
Granite is a rock, whereas obsidian is a type of glass formed by cooling lava.
In order to maintain the shine of an obsidian rock how can you cut it to show the colors?
You can cut obsidian with a rock saw or a diamond tile saw, but in order to maintain the shine, you would have to polish it. Equipment is sold for this purpose.
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 is granite different from scoria pumice and obsidian?
granite is extrusive rock
How are obsidian rocks different from igneous rock?
Obsidian is a form of an igneous rock that forms when molten rock material cools so rapidly that atoms are unable to arrange themselves into a crystalline structure.
What does rock group does obsidian belong to?
Obsidian is in the Igneous rock group.
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.
Which best explains the glassy look of obsidian?
The fact that obsidian IS glass. It is a naturally occurring form of volcanic glass. Different impurities give it different colors, usually black or shades of gray.
What is the obsidian rock type?
Obsidian is an extrusive felsic igneous rock.
