volcanic glass Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

are these rocks arranged in an orderly pattern?

A

no

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2
Q

what type of crystals do they have and why?

A

small because they cooled to quickly for crystals to form

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3
Q

give me 3 examples of volcanic glass

A

scoria, pumice and obsidian

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