Of the Five Rock-Forming Mineral Groups-The Silicates,carbonates,oxides,sulfides,and Sulfates-Which Two Form

question 21

Multiple Choice

Of the five rock-forming mineral groups-the silicates,carbonates,oxides,sulfides,and sulfates-which two form economically important ores?

• A)silicates and carbonates
• B)carbonates and oxides
• C)oxides and sulfides
• D)sulfides and sulfates

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