136k views
1 vote
As molten basalt cools, one of the minerals that forms is ______________, a black magnetic mineral.

User Srijan
by
8.2k points

2 Answers

5 votes
As molten basalt cools, one of the minerals that forms biotite, a black magnetic mineral.
User Staszek
by
7.7k points
6 votes
The answer is: "biotite" .
__________________________________________________________
"As molten basalt cools, one of the minerals that forms is biotite , a black magnetic mineral.
__________________________________________________________
User Joshua Colvin
by
8.5k points