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Rupert Hochleitner - Firefly Guide to Minerals, Rocks and Gems, Häftad

Häftad, Engelska, 2019

Firefly Guide to Minerals, Rocks and Gems

Av Rupert Hochleitner

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Beskrivning
Step-by-step Q&As with detailed colour photographs for easy identification. The Firefly Guide to Minerals, Rocks & Gems is designed for easy and reliable identification of minerals, gems and rocks. Beginning with the stone's colour and any streak, and using a sequence of straightforward questions and answers - aided by 1,300 photographs and drawings - it's easy to narrow down the possibilities among 350 minerals, gems and rocks to the conclusive classification. The book organizes the rocks by colour: Blue, Red, Yellow, Brown, Green, Black, and White. Identification begins with noting the colour of the rock's streak (i.e., vein, line). Identification is then further narrowed down with respect to Colour, Crystal form, Hardness, Lustre, Density, Cleavage, Break and Tenacity. Each rock's main photograph shows the general or typical view, and identification tips about features are noted in the margins of the respective page. Similar stones are presented for comparison and tips are provided that can eliminate imposters. Drawings show the mineral's crystal shape. The chemical formula reveals the elements from which the mineral is composed. There is also information about where the stone is typically found and some of the ways that humans have utilized it. Packed with beautiful photographs of earth's many rocks, minerals and gems, The Firefly Guide to Minerals, Rocks & Gems is perfect for amateur mineralogists and collectors.
Produktinformation
  • Utgivningsdatum: 2019-09-27
  • Mått: 114 x 193 x 23 mm
  • Vikt: 409 g
  • Format: Häftad
  • Språk: Engelska
  • Antal sidor: 256
  • Förlag: Firefly Books Ltd
  • ISBN: 9780228102281
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Mer om författaren

Rupert Hochleitner has a PhD in Mineralogy. His area of specialization is systematic mineralogy. Other research areas are meteorites, in particular those of the planet Mars, oxidation minerals, and pegmatitic phosphate minerals. He has published numerous scientific articles and was for a long time editor-in-chief of the journal LAPIS, a specialist magazine for mineral collectors and mineral lovers. Since 1993, he has been deputy director of the Mineralogical State Collection, Munich.

Recensioner i media

A scholarly survey of mineralogy, this manual will appeal to the serious specimen collector with its stunning photos and erudite detailing. A color chart in the fold-out cover divides sections into blue, red, yellow, brown, green, black, and white rocks. A matching back cover categorizes and diagrams 28 crystalline forms. Each entry identifies the mineral by chemical formula and lists succinct details of cleavage, hardness, luster, density, fracture, and tenacity. Some contain common names (fool's gold, desert rose). Descriptors specify types -- vitreous, aggregate, metamorphic, igneous, radial -- and catalogue geometric shapes with such terms as isometric, monoclinic, tetragonal, rhombic. Commentary links minerals with geological formation in Alpinetype fissures, sedimentary rock, and hydrothermal veins and identifies some locales, such as Iceland, the Canary Islands, and Silverberg in the Bavarian Forest. A knowledgeable historian as well as mineralogist, Hochleitner notes anecdotal particulars; for example, the fact that Goethe was a rock hound, aegirite bears the name of the Nordic sea god, and copper working began in the Stone Age. A book for serious students of geology and earth elements, this work comes highly recommended for public, high-school, and college libraries.

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