Seudónimo
Seudónimo
10-11-2016
Chemistry
contestada
how did obsidian form
Respuesta :
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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