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How to Identify Igneous Rocks in Thin Section and Hand Sample - GEO GIRL

GEO GIRL via YouTube

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This video teaches visual identification of igneous rocks and their constituent minerals in hand samples and thin sections. It compares textures, compositions, formation settings, and diagnostic features across common rock types.

Syllabus

Basalt
Gabbro
Diabase/Dolerite
Rhyolite
Granite
Syenite
Andesite
Diorite
Dacite & Granodiorite
Peridotite
Obsidian
Pumice
Scoria
Anorthosite
Tuff
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Taught by

GEO GIRL

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