Kyanite,andalusite,and Sillimanite ____

question 29

Multiple Choice

Kyanite,andalusite,and sillimanite ____.

• A) are index minerals formed from clay-rich parent rocks
• B) form from the same parent rocks under different combinations of pressure and temperature
• C) can transform from one to the other depending on changes in temperature and pressure
• D) have the same chemical composition
• E) all of these

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