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materials science
Question by tanayafarr (290)
How is it formed?
Answer by Lucy101 (225)
Obsidian rock is a natural volcanic glass produced during the rapid cooling of volcanic lava. It consists mainly of silicon dioxide.
Answer by sailoryue (853)
obsidian is a volcanic glass. it occurs when lava cools really fast without forming crystals. it can also be very dangerous to handle as the sharp edges have molecular thinness
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