Amedee Hot Springs (Amedee Springs), Wendel, Lassen Co., California, USA
An Hg occurrence located at the springs on the southern tip of the county.
Mineralization is being precipitated from spring vents. Thermal waters rise up through the alluvium of Honey Lake basin, depositing cinnabar layers up to 2 mm thick around vent orifices. Black metacinnabar overlies the layers of cinnabar in discharge pools and channels.
References:
Dickson, F.W. & G. Tunell (1959), Stability relations of cinnabar and metacinnabar: American Mineralogist: 44: 484.
Tunell, G. (1964) Chemical processes in the formation of mercury ores and ores of mercury and antimony. Geochimica et Cosmochimica Acta: 28: 1019-1037.
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 148, 262.
White, D.E. (1967) Mercury and base-metal deposits with associated thermal and mineral waters. In: H.L. Barnes (Editor), Geochemistry of hydrothermal ore deposits. Holt Reinhart and Winston, New York: 597-598.
Dickson, F.W. & G. Tunell (1968), Mercury and antimony deposits associated with active hot springs in the western United States. In Ore Deposits of the United States, 1933-1967. The Graton-Sales volume, New York. A.I.M.E.: 1676.
Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 116, 440.
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Map Reference: 40°18'3"N , 120°11'42"W
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Mineral List:4 entries listed. 4 valid minerals.
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