Which of the Following Best Characterizes Ferromagnesian Silicates

question 23

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.

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