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USGS COLORADO URANIUM RALSTON BUTTES, SCHWARTZWALDER MINE, ALL MAPS Near DENVER
USGS COLORADO URANIUM RALSTON BUTTES, SCHWARTZWALDER MINE, ALL MAPS Near DENVER
USGS COLORADO URANIUM RALSTON BUTTES, SCHWARTZWALDER MINE, ALL MAPS Near DENVER
USGS COLORADO URANIUM RALSTON BUTTES, SCHWARTZWALDER MINE, ALL MAPS Near DENVER
USGS COLORADO URANIUM RALSTON BUTTES, SCHWARTZWALDER MINE, ALL MAPS Near DENVER
USGS COLORADO URANIUM RALSTON BUTTES, SCHWARTZWALDER MINE, ALL MAPS Near DENVER
USGS COLORADO URANIUM RALSTON BUTTES, SCHWARTZWALDER MINE, ALL MAPS Near DENVER
USGS COLORADO URANIUM RALSTON BUTTES, SCHWARTZWALDER MINE, ALL MAPS Near DENVER
USGS COLORADO URANIUM RALSTON BUTTES, SCHWARTZWALDER MINE, ALL MAPS Near DENVER
USGS COLORADO URANIUM RALSTON BUTTES, SCHWARTZWALDER MINE, ALL MAPS Near DENVER
USGS COLORADO URANIUM RALSTON BUTTES, SCHWARTZWALDER MINE, ALL MAPS Near DENVER
USGS COLORADO URANIUM RALSTON BUTTES, SCHWARTZWALDER MINE, ALL MAPS Near DENVER

USGS COLORADO URANIUM RALSTON BUTTES, SCHWARTZWALDER MINE, ALL MAPS Near DENVER

$ 13.2

Availability: 22 in stock
  • Country/Region of Manufacture: United States
  • Condition: Item consists of a map case containing a book and maps. Text is very good with no underlining or internal marks and the binding is tight. Large full color map has some general wear, plus there are some tape marks round the map pane where perhaps an overlay was affixed, plus faint pencil marks in a number of places. Other maps are excellent with no marks. Overall a very good example of this report.

    Description

    SCARCE ITEM!!  ONLY ONE AVAILABLE!!
    This is USGS Professional Paper 520,
    Geology and Uranium Deposits of the Ralston Buttes District, Jefferson County, Colorado.
    Published in 1967, there aren't many of these around! The publication consists of the
    121-page book,
    all
    eight
    of the original color maps, and a large folded table of samples taken in the Schwarzwalder mine, all of
    which come in a pocket in the back of the book.
    This is an interesting area in the Front Range of Colorado west of Denver. The uranium deposits are the most significant east of the Continental divide, and unlike many Colorado uranium deposits, they are hosted by Precambrian metamorphic rocks rather than sandstones. They are vein deposits that came with a whole bunch of other interesting minerals. Some of the minerals I saw discussed in the text include:
    Pitchblende
    Coffinite
    Torbernite
    Metatorbernite
    Uranophane
    Autunite
    Meta-autunite
    Uranopilite
    Johannite,
    Betazippeite
    Phosphuranylite
    Metazeunerite
    Fourmarierite
    Silver
    Nicolite
    Pyrite
    Chalcopyrite
    Bornite
    Sphalerite
    Galena
    Tetrahedrite-Tennantite
    Bismuth
    Copper
    Marcasite
    Maucherite(?)
    Rammelsbergite(?)
    Covellite
    Malachite
    Azurite
    Chalcanthite
    Hematite
    Emplectite(?)
    Molybdenite
    Pyrrhotite
    In addition there are many minerals making up the host rocks in and near the mines.
    Mines and deposits discussed in the text include:
    Schwartzwalder mine
    Ascension mine
    Mena mine
    North Star mine
    Aubrey Ladwig mine
    Fork prospect
    Ohman mine
    Union Pacific prospect
    Buckman property
    Ladwig #1 through 3
    Of these the
    Schwartzwalder, Ladwig, and
    Ascension mines were the major producers, and each of these has one or more pocket maps
    dedicated
    to it. Maps of the
    Schwartzwalder
    mine
    include underground workings. They are very cool!
    The text goes into great detail about the host formations, their structure and mineralogy, and the structure and occurrence of mineralization in the deposits. It has all the detail you could want! The locations are given in detail.
    What a great item for any geologist, arm chair geologist, hiker or explorer in the Denver area! Hard to pass this one up, and it would make a great, unusual gift.
    Over an inch thick!!
    Expert packing assured. Shipping weight is three pounds. The recent increase in postage rates was pretty big. As a result, Media Mail is now my default shipping method to keep shipping affordable.
    Visit my store,
    Rockwiler Books and Minerals.
    I will continue to add items to my store, so check back frequently.
    ®
    ROCKWILER