This premium Earth Science collection comes with 75 number-coded, unmounted 3/4"-1" specimens, perfect for handing out to students and allowing them to test each rock in this kit for its unique physical properties.
Nine of the ten hardness levels from the Mohs scale are included (all but diamond). A sturdy compartmented storage box, streak plate, magnet, magnifier, and Rocks, Minerals and Gemstones: an Introductory Study Guide are included.
The 16-page Rocks, Minerals and Gemstones guide has basic information on many of the rock and mineral specimens in this collection. It is organized into sections on mineral properties, metallic minerals, nonmetallic minerals, rock forming minerals, igneous rocks, sedimentary rocks, metamorphic rocks, and gemstones, which you'll find samples of in this rock kit. It also has charts on the rock cycle and on classification of the three types of rocks.
Note: This kit contains galena, a source of lead. Skin contact with galena is not dangerous; however, to avoid potential digestion, always wash hands after handling.
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Rocks & Minerals Earth Science Collection, 75 specimens
The following rocks and minerals are typically included in this set:
Minerals in the Scale of HardnessTalc, Gypsum, Calcite, Fluorite, Apatite - Triphyllite, Feldspar, Quartz, Beryl - Topaz, Corundum
Streak, Luster, Cleavage, Fracture, Specific GravityFeldspar - Microcline, Galena, Chalcopyrite, Magnetite, Magnetite- Lodestone, Hematite, Gypsum - Satin Spar, Limonite, Halite, Sphalerite, Barite, Obsidian, Pyrite
Rock Forming MineralsMica - Muscovite, Mica - Biotite, Calcite, Dolomite, Amphibole - Hornblende, Feldspar - Plagioclase, Kaolinite, Olivine, Pyroxene - Augite, Garnet
Ores of Metals and NonmetalsSulfur, Graphite, Kyanite, Vermiculite, Bauxite, Pyrolusite, Malachite
Igneous RocksPumice, Scoria, Basalt, Felsite - Rhyolite, Granite, Pegmatite, Syenite, Diorite, Basalt Porphyry, Gabbro, Trachyte Porphyry, Pitchstone, Andesite
Sedimentary RocksArkose, Sandstone, Fossil Limestone, Bituminous Coal, Oolitic Limestone, Compact Limestone, Chalk, Limestone, Travertine, Conglomerate, Shale, Oolite, Oil Shale, Red Sandstone
Metamorphic RocksSlate, Marble, Quartzite, Hornfels, Mica Schist, Chlorite Schist, Phyllite, Gneiss, Anthracite Coal
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