Rocks & Minerals Earth Science Collection, 75 specimens
This premium Earth Science collection of 75 number-coded, unmounted 3/4"-1" specimens is a valuable tool for demonstrating physical properties, the scale of hardness, and the major rock-forming minerals. Nine of the ten hardness levels from the Mohs scale are included. Sturdy compartmented storage box, streak plate, magnet, magnifier, and complete Rocks and Minerals Study Guide are included.The following rocks and minerals are typically included in this set:
Minerals in the Scale of Hardness
Talc, Gypsum, Calcite, Fluorite, Apatite - Triphyllite, Feldspar, Quartz,
Beryl - Topaz, Corundum
Streak, Luster, Cleavage, Fracture, Specific Gravity
Feldspar - Microcline, Galena, Chalcopyrite, Magnetite, Magnetite- Lodestone,
Hematite, Gypsum - Satin Spar, Limonite, Halite, Sphalerite, Barite, Obsidian,
Pyrite
Rock Forming Minerals
Mica - Muscovite, Mica - Biotite, Calcite, Dolomite, Amphibole - Hornblende,
Feldspar - Plagioclase, Kaolinite, Olivine, Pyroxene - Augite, Garnet
Ores of Metals and Nonmetals
Sulfur, Graphite, Kyanite, Vermiculite, Bauxite, Pyrolusite, Malachite
Igneous Rocks
Pumice, Scoria, Basalt, Felsite - Rhyolite, Granite, Pegmatite, Syenite,
Diorite, Basalt Porphyry, Gabbro, Trachyte Porphyry, Pitchstone, Andesite
Sedimentary Rocks
Arkose, Sandstone, Fossil Limestone, Bituminous Coal, Oolitic Limestone,
Compact Limestone, Chalk, Limestone, Travertine, Conglomerate, Shale, Oolite,
Oil Shale, Red Sandstone
Metamorphic Rocks
Slate, Marble, Quartzite, Hornfels, Mica Schist, Chlorite Schist, Phyllite,
Gneiss, Anthracite Coal



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