asked 200k views
7 votes
How did you determine which were intrusive and which were extrusive?

asked
User Xiaohua
by
8.2k points

1 Answer

4 votes
Extrusive rocks cool down quicker so form smaller crystals.

Intrigue rocks cool down slowly so form ther crystals.
answered
User Rumit Parakhiya
by
8.0k points
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