Are there any other minerals or relics of former mineral in a dunite. ( check mo
ID: 116649 • Letter: A
Question
Are there any other minerals or relics of former mineral in a dunite. ( check more than thin section) if so, describe them and try to identify them. Do any of these contain inclusions of the olivine? Based on your observations, would you say that these phases grew with the olivine or that they grew after olivine??? Are there any other minerals or relics of former mineral in a dunite. ( check more than thin section) if so, describe them and try to identify them. Do any of these contain inclusions of the olivine? Based on your observations, would you say that these phases grew with the olivine or that they grew after olivine???Explanation / Answer
Dunite is an ultramafic plutonic rock that is composed almost exclusively of olivine along with pyroxene, chromite, magnetite, and pyrope. “Ultramafic” means that mafic minerals form more than 90% on the rocks composition.
Yes, dunite contains olivine.
Based on information, olivine transforms to serpentinite.