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Keywords from Image Description:
Streckeisen for intrusive foid igneous rocks.svg en Streckeisen classification of intrusive phaneritic igneous rocks Foid field Used by IUGS fr Classification Streckeisen des roches magmatiques plutoniques champs des feldspathodes fodites Normalisation de l'IUGS Own work Inkscape br An introduction to igneous and metamorphic petrology