Microscopy
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7336 R003 4x Tambora volcano petrographic thin section geology plagioclase clinopyroxene microlite groundmass micrograph PPL
tamboravolcanologyvolcanopetrographypetrographic thin sectionmicroscopyphotomicrographphotomicrographygeologyoptical mineralogyplagioclasemicroliteclinopyroxenegroundmassrockpolarized lightreliefplane polarized light