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Gems & Minerals of California


Gems & Minerals of California

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SKU
GB-31020005
In stock
5 available
Weight
0.25 lbs
Retail Price
$6.95
Our Internet Price
$5.21 (Save 25%)

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A handy pocket size field guide to the gems and minerals of California. The geology of California is extremely diverse. This creates a wide variety of gems and minerals found in the state. Not only does the book provide a description of the findings, but locations as well.
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  • Gems and Minerals of Arizona

    There's gold in them thar hills! Along with silver, turquoise, copper, and tons (literally) of other minerals. This guidebook explains what you will find and where in Arizona you will find it. Prospectors were right on target when they came to Arizona! A handy pocker sized field guide to the gems and minerals of Arizona.
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  • Southwest Treasure Hunters Gem & Mineral Guide

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  • Guide to Eastern Rocks and Minerals

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  • McGraw-Hill Dictionary of Geology & Mineralogy 2nd Edition

    Including more than 9,000 essential terms.
    Ccovers every discipline of geology & mineralogy.
    Provides synonyms, acronyms, and abbreviations.

    Derived from the world-renowned McGraw-Hill Dictionary of Scientific and
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    , this vital reference offers a wealth
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    Written in clear, simple language understandable to the general reader, yet
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    Dictionary of Geology & Mineralogy, Second Edition
    :



    • Has been extensively revised, with 9,000 entries encompassing the language
      of geology and mineralogy

    • Includes synonyms, acronyms, and abbreviations

    • Provides pronunciations for all terms

    • Covers such topics as physical geology, historical geology, mineralogy,
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    • Includes an appendix containing tables of useful data and information

    • Is based on the McGraw-Hill Dictionary of Scientific and Technical Terms ? for
      more than a quarter-of-a-century THE standard international reference



    Carefully reviewed for clarity, completeness, and accuracy, the McGraw-Hill
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  • Mineral Hardness Scale Ruler

    The Mineral Hardness Ruler is a stimulating visual aid, educates in one phase of mineralogy, and provides the standard ruler measurement scales needed in classes.


    Rockhounds, mineral enthusiasts, students, teachers, geologists, and any one interested in rocks and minerals will find the Mineral Hardness Ruler a handy visual aid for quick information on mineral hardness.



    The two-sided, flexible, glossy, vinyl ruler consists of five scales: three measurement scales and two mineral hardness scales. The measurement scales are in standard ruler measurements of tenths of inches, sixteenths of inches, and millimeters. Mohs' relative hardness numbers are integrated into the inch scales, while a separate scale exists for an absolute mineral hardness scale by Rosiwal.


    On one side of the ruler are pictures of the ten common minerals, in full color, selected by Mohs for his relative hardness scale. On the reverse side of the ruler are six common items with their relative hardnesses. These items, along with known minerals, can be used as a handy field kit to test the relative hardness of an unknown mineral.


    Hardness is one property of a mineral that can be used to distinguish among similar minerals. A given mineral can scratch any other mineral of the same or softer hardness. Over a hundred years ago, the German mineralogist Frederick Mohs devised the relative hardness scale that has found favor with mineralogists for over a century. Others, such as Rosiwal, formed absolute hardness scales using the same minerals as Mohs. For example, diamond, the hardest substance in Nature is not twice as hard as apatite, 10 versus 5, but over twenty thousand times as hard, 140,000 versus 6.5.

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  • California (Northern Edition) Gold & Gems Maps - Then and Now

    Height 9.5'' Width 6.5''

    California Gold & Gems Maps, Northern Edition is a comprehensive collection to assist the rockhound in locating 40 gem sites. The source of information has been taken from numerous publications. All known types of rock and gem deposits could not be included because of the numerous types and locations would be overwhelming. Some of the reported gold and gold districts are included as far back as 1850.


    The first report of gold in California was published in Spain in 1510. California was believed to be an island north of Mexico where gold and precious stones were abundant. Gold was actually mined in California as early as the late 18th century but the "rush" did not begin until the discovery at Sutters Mill in 1848.


    Rock and Gem collecting in California is virtually unlimited as illustrated by the key symbols on each USGS map section. A few counties that host exciting deposits are as follows: Siskiyou, Trinity, Tehama and Plumas.


    The early maps included in this publication were located in various archival collections. The primary sources were the National Archives and the California State Library. The U.S. Geological Survey supplied the featured modern map. The design is planietric for clarity.


    Map identifies locations of: gold and silver, actinolite, agate, amazonite, amethyst, apatite, apache tears, argonite, azurite, beryl, calcite, carnelian, chalcedony, chert, chrysocolla, epidote, feldspar, flourite, fossils, garnet, geodes, hematite, jade, jasper, kyanite, malachite, obsidian, opal, orthoclase, petrified wood, psilomelane, pyrite, quartz, rhondonite, rhyolite, serpentine, topaz, travertine, tourmaline, turquoise, and wollastonite.

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