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What type of igneous rock has two distinct grain sizes, indicating two stages of cooling? A. phaneritic B. aphanitic C. porphyritic D. glassy
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2 votes
What type of igneous rock has two distinct grain sizes, indicating two stages of cooling?

A. phaneritic

B. aphanitic

C. porphyritic

D. glassy

User TC Zhang
by
7.9k points

1 Answer

5 votes
it is C Porphyritic ;)
User Sundiata
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