This packet contains 5 maps (17 1/2 X 23) printed on both sides. The maps divide the state into four sections and show the location of 63 gems in addition to gold and silver. The maps featured were chosen due to their clarity. This package is a must for both the serious or the part time rock hound.
Map locates deposits of actinolite, agate, amazonite, amethyst, anthophylite, apatite, arsenopyrite, azurite, barite, beryl, broznite, calcite, cassiterite, cerussite, chert, chalcopyrite, chryscolla, corundum, diopside, enargite, epidote, flourite, fossil, garnet, geodes, hematite, meminorphite, heulandite, heubnerite, jasper, kyanite, limonite, magnetite, malachite, muscovite, olivine, opal, orthoclase, parisite, petrified wood, psilomelane, pyrite, pyrolusite, pyrrhotite, quartz, rhodochrosite, rhyolite, sapphire, selenite, serpentine, scheelite, spinel, staurolite, stibbnite, titanite, topaz, vesuvianite, wulfenite, and zeolite.
Montana's geologic history includes a long succession of disturbances that changed the rocks, then changed many of them again. Unraveling these events reveals a geologically quiet continent that got scrambled in a long and grinding collision with the Pacific crustal plate. Through detailed geologic maps and lively text, Roadside Geology of Montana deciphers the complicated rock record and uncovers each layer of Big Sky Country.
Map identifies locations of: gold and silver, agate, beryl, corundum, epodote, feldspar, garnet, geodes, jasper, nodules, opal, opalized wood, petrified wood, quartz, rhodonite, thunder eggs, topaz, tourmaline, and zeolite.
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