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Bøger i Rocks, Minerals and Gemstones serien

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  • af Simon & Schuster
    223,95 kr.

    An easy to use field guide that contains everything rock and mineral enthusiasts need to know with more than 1,000 spectacular illustrations—600 in full color!Practical, concise, and easy to use, Simon & Schuster’s Guide to Rocks and Minerals contains everything that the rock and mineral enthusiast needs to know. This field guide is divided into two large sections—one devoted to minerals and one to rocks, each prefaced by a comprehensive introduction that discusses formation, chemistry, and more. All 377 entries, beautifully illustrated with color photographs and helpful visual symbols, provide descriptions and practical information about appearance, classification, rarity, crystal formation, mode of occurrence, gravity of mineral, rock chemistry, modal classification fields, formational environments, grain sizes of rocks, and much more. Whether you are a serious collector or an information-seeking amateur, this incomparably beautiful, authoritative guide will prove an invaluable reference.

  • af Joe Dan Lowry
    158,95 kr.

    In the American Southwest, turquoise is a highly prized gemstone with great cultural significance. Author Joe Dan Lowry is recognized worldwide as a leading expert on the subject, and Turquoise Unearthed: An Illustrated Guide is the definitive resource for rock hounds and serious collectors alike. Lowry describes the fascinating history of turquoise mining in the American Southwest and reveals the astonishing variety of colors and forms that make this a gemstone like no other. Among Native American peoples of the Southwest, turquoise is especially prized, with blue stones symbolizing "Father Sky" and greener ones evoking "Mother Earth." This lavishly illustrated volume also features some of the finest examples of antique and contemporary Southwest Indian turquoise jewelry.