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Petrology - Wikipedia
Petrology | Igneous, Sedimentary & Metamorphic | Britannica
1 Introduction to Petrology – Open Petrology - OpenGeology
Introduction to Petrology - Open Textbook Library
Open Petrology – Free Textbook for College-Level Petrology ...
Petrology | Igneous, Sedimentary, Metamorphic Petrology ...
1.1: What is Petrology? - Geosciences LibreTexts