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Rock Type - Coggle Diagram
Rock Type
Igneous
Mafic
Basalt (fine-graned)
Porphyritic Basalt (phenocrysts in fine-graned matrix)
Gabbro (coarse-grained)
Intermediate
Andesite (fine-grained)
Porphyritic Andesite (phenocrysts in fine-grained matrix)
Diorite (coarse-grained)
Ultramafic
Peridote
Felsic
Rhyolite (fine-grained)
Granite (coarse-grained)
Porphyritic Granite (phenocrysts in a finer-grained matrix)
Other
Obsidian (glassy)
Pumice (vesicular)
Sedimentary
Clastic
Gravel (very coarse-grained)
Breccia - angular fragments
Conglomerate - rounded fragments
Sand (fine to coarse)
Sandstone
Silt (very fine)
Siltsone
Clay (tiny)
Shale
Chemical/ Organic
Crystalline
Rock Gypsum (Gypsum)
Dolostone (Dolomite)
Rock Salt (Halite)
Bioclastic
Fossiliferous Limestone
Coquina (shells - calcium carbonate)
Limestone (calcium carbonate)
Coal (Carbon)
Metamorphic
Foliated
Schist
Garnet-mica Schist
Staurolite Schist
Mica Schist
Gneiss (coarse-grained)
Slate (fine-grained)
Non-foliated
Greenstone
Amphibolite
Quartzite
Hornfels
Marble
Anthracite