Geology: identify 21 rocks
Identify the following rocks using the Key provided. Place the names with the appropriate number.
Basalt, Breccia, Chert, Conglomerate, Coquina, Diorite, Fossiliferous Limestone, Garnet schist, Gneiss, Granite, Marble, Obsidian, Oolitic Limestone, Petrified Wood, Phyllite, Pumice, Rhyolite, Sandstone, Scoria, Shale, Slate
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