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Geology 12 • ROCK ID LAB Name ___________________ Use your lab manual, text book, rock ID booklet and rock classification handout (blue sheet) to identify the available samples. SAMPLE LETTER NAME TYPE SUBCLASS COMMENTS F ANDESITE igneous volcanic/extrusive intermediate composition cf diorite BASALT BRECCIA CHALK CHERT COAL CONGLOMERATE COQUINA (limestone) DIORITE DOLOMITE GABBRO GNEISS GRANITE LIMESTONE MARBLE Page 1 of 5 Geology 12 • ROCK ID LAB Name ___________________ Use your lab manual, text book, rock ID booklet and rock classification handout (blue sheet) to identify the available samples. SAMPLE LETTER NAME TYPE SUBCLASS COMMENTS METACONGLOMERATE OBSIDIAN PERIDOTITE PORPHYRY POTASH PUMICE QUARTZITE RHYOLITE ROCK GYPSUM ROCK SALT OR HALITE SANDSTONE SCHIST SCORIA SHALE SLATE Page 2 of 5 Rock ID Lab Name ____________________ Igneous Environments • Label and color the following diagram. (See your lab manual page 59.) Igneous Rocks I must Know: • RHYOLITE = ________________ • ANDESITE = ________________ • BASALT = ________________ • PERIDOTITE and ANORTHOSITE are ___________________ (no quartz) rocks • PUMICE, OBSIDIAN and SCORIA are ___________________ • PORPHYRY has 2 textures or ________________ sizes due to different cooling rates • Where would you expect to find hydrothermal deposits? compositional equivalents (intrusive vs extrusive) Page 3 of 5 Rock ID Lab Name ____________________ Sedimentary Environments • Label and color the following diagram. (See your lab manual page 76.) Sedimentary Rocks I must Know: • • • • • • • BRECCIA / TILLITE CONGLOMERATE SANDSTONE LIMESTONE SHALE / SILTSTONE / MUDSTONE COAL Where do evaporates such as potash and rock salt form? Page 4 of 5 Rock ID Lab Name ____________________ Metamorphic Environments • Label and color the following diagram. (See your lab manual page 88.) Metamorphic Rocks I must Know: • Shale → SLATE → PHYLLITE → SCHIST → GNEISS • Limestone → MARBLE • Sandstone → QUARTZITE • Conglomerate → METACONGLOMERATE • HORNFELS and CHILLED MARGINS are caused by ____________________ metamorphism. • Which rocks are FOLIATED? • Which rocks are NON-FOLIATED? Page 5 of 5
