Dating goldinfo com uaa journal
(1922) Handbuch der Mineral-chemie (in 4 volumes divided into parts): 3 : 187. Weiss (1925) Proceedings of the Royal Society of London: 108: 643 (artificial Au-Ag alloys).
(1923) Origin of the Placer Gold of the Barkerville Area, Cariboo District, British Columbia, Canada. Holgersson and Sedström (1924) Annalen der Physik, Halle, Leipzig: 75: 143.
It may also occur in contact metamorphic or hypothermal deposits (eg.
Skarns), or epithermal deposits such as volcanic fumaroles.
It is most commonly found as disseminated grains in Quartz veins with Pyrite and other sulphides, or as rounded grains, flakes or nuggets in placer deposits in recent to ancient stream and river deposits.
Gold occurs in significant amounts in three main types of deposits: hydrothermal quartz veins and related deposits in metamorphic and igneous rocks; in volcanic-exhalative sulphide deposits; and in consolidated to unconsolidated placer deposits. Gold is one of the first minerals used by prehistoric cultures. A native element and precious metal, Gold has long been prized for its beauty, resistance to chemical attack and workability. (1904) The Geology of the Treadwell Ore Deposits, Douglas Island, Alaska. The Latin name for this mineral was "aurum" and Jöns jakob Berzelius used Au to represent the element when he established the current system of chemical symbols. As it is found as a native element, has a relatively low melting point (1063 degrees Celsius) and is malleable, it has been used by mankind for thousands of years. Krusch (1903) Zeitschrift für praktische Geologie, Berlin, hale a. Transaction of the American Institute of Mining Engineers - Oct., 1904. Nenadkevwitsch (1914) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 53: 609. Mc Keehan (1922) Physical Review, a Journal of Experimental and Theoretical Physics: 20: 424.
Day, Sosman (1910), American Journal of Science: 29: 93.