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Earth & Environmental Science



- Igneous
Andesite, Hornblende Phenocrysts
Basalt, Flood, Dark
Basalt, Gray to Black, Fine-Grained
Diorite, Medium Grain with Hornblende
Gabbro, Brown to Black, Coarse Grained
Granite, Gray-White, Medium-Grained
Obsidian, Black, Glassy
Obsidian, Pitchstone, Black
Pumice, Light Gray
Rhyolite, Gray Porphyry
Rhyolite, Pink
Scoria, Reddish-Brown to Dark Gray
Syenite, Gray, Medium-Grained
Trachyte, Gray to Red
P.O. Box 219, Batavia, IL60510



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