How can you tell obsidian is an igneous rock?

Anonymous

∙ 10y ago

Updated: 8/21/2019

Obsidian is a form of glass. Glass can only form when material cools from a molten state.

Wiki User

∙ 10y ago

What else can I help you with?

Is obsidian metamorphic igneous or sedimentary?

Obsidian is an igneous rock.

Is obsidian an igneous rock?

Obsidian is an igneous rock.So the answer is YES.

What does rock group does obsidian belong to?

Obsidian is in the Igneous rock group.

What is the obsidian rock type?

Obsidian is an extrusive felsic igneous rock.

What kind or rock is obsidian?

It is an igneous rock

Dark igneous rock formed from lava?

obsidian obsidian

What group does obsidian belong to?

Obsidian is in the Igneous rock group.

What igneous rock has no visible crystals?

Granite is a coarse grained igneous rock without Pyroxene.

Which rock is igneous and is black?

obsidian rock

What igneous rock cools from lava?

obsidian

What igneous rock is greenish black?

It is obsidian.

What kind of igneous rock does not have fossils?

obsidian

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