Seudónimo Seudónimo
  • 10-11-2016
  • Chemistry
contestada

how did obsidian form

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Аноним Аноним
  • 10-11-2016
Obsidian is a naturally occurring volcanic glass formed as an extrusive igneous rock. It is produced when felsic lava extruded from a volcano cools rapidly with minimal crystal growth.


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