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.
The Geologic Map of California presets an overview of the geology and
structure of the state with sufficient detail to be useful for many purposes.
It should fill the need for a modern geologic wall map (flat) showing the distribution
of the major rock types and the major structural elements of the state. The Geologic
Map of California portrays the geologic setting of mineral deposits of
California and can be used in planning mineral resources investigations.
California is a big state and this is a big map! 5 feet by 4 1/2 feet big.
The geologic features of California overlaid on a topographical map with 500
foot intervals with 100 foot supplementary intervals . The Geologic Map
of California is available either folded (this product) or as a flat sheet.
Note: the image used is from the Generalized Geologic Map of California (1:2,500,000).
The Geologic Map of California, 1977, at the scale of 1:750,000, has
much more geologic detail!
The Estwing Supreme 22 oz Pointed Tip Rock Hammer (E3-22P) is the standard, the rock pick carried by more geologist and rockhounds. Light enough to easily carry but heavy enough to crack some rock. Estwing Supreme quality in a one-piece forged pointed tip rock pick. Fully polished solid steel with the Estwing shock absorbing nylon-vinyl grip which has been tested to reduce shock by 50%.
|Head Width||7 inches|
|Overall Length||12 3/4 inches|
|Head Weight||22 ounces
|Total Weight||2 pounds|
This is almost the same rock Hammer as the Estwing Supreme 22 oz Pointed Tip Rock Hammer E3-22P. The difference is the use of a leather handle rather than the vinyl handle. The leather grip is made of laminated leather "O" rings pressed then riveted to the shaft. The whole handle is then laminated. The leather grip makes this hammer aesthetically pleasing as well as a great field tool. The leather is factory coated with a varnish that wears off with use.
|Head Width||7 inches|
|Overall Length||13 inches|
|Head Weight||22 ounces|
|Total Weight||1 pound 15 ounces|
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