Definition of "petrologist" []

• A geologist who specializes in petrology (noun)

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• "Chatting to others in her office I found that one off them was ex-Birkbeck and the other informed me that the igneous petrologist might indeed now be interested in my project as she has become obsessed with meteoritics - this is useful info."
• "“You could give this to any petrologist or geologist or astronomer on earth, they would run tests, and they would tell you two things: one, it is 190 million years old; and two, it is chemically dissimilar from the kind of rock we have here on earth.”"
• ""You could give this to any petrologist or geologist or astronomer on earth, they would run tests, and they would tell you two things: one, it is 190 million years old; and two, it is chemically dissimilar from the kind of rock we have here on earth.""