Multiple Choice
Which of the following best characterizes ferromagnesian silicates?
A) They are high temperature black to dark- green minerals containing iron and magnesium.
B) They are mostly dark, heavy, and rich in the elements manganese and ferron.
C) They are dark and have a Mohs hardness greater than 7.
D) They contain iron and magnetite, are black in colour, and they have metallic lustres.
Correct Answer:
Verified
Correct Answer:
Verified
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