2: Origins of Minerals Last updated May 6, 2022 Save as PDF 1.2: Becoming a Gemologist 2.1: Igneous (Magmatic) rocks Page ID3178 gemologyGemology Project ( \newcommand{\kernel}{\mathrm{null}\,}\) 2.1: Igneous (Magmatic) rocks2.2: Sedimentary rocks2.3: Metamorphic rocks2.4: External Links2.5: Luster