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Red Ledge Mine, Washington, Washington District (Omega District), Nevada Co., California, USA

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Detailed Mineral List:
Ankerite
Reference: USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10031922.
Arsenopyrite
Calcite
Reference: Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 118, 256.
'Chlorite Group'
Reference: USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10163996.
Chromite
Reference: Trask, John Boardman (1853), Report on the geology of the Sierra Nevada, or California Range: California Legislature, 4th. sess., Ap. To Jour., S. Doc. 59, 30 pp.: 25; MacBoyle, Errol (1919), Mines and mineral resources of Nevada County: California Mining Bureau. Report 16, 270 pp. (published as separate chapter): 63; Melhase, John (1935c), Some garnet localities of California: Mineralogist: 3(11): 23; Hanks, Henry Garber (1884), Fourth report of the State Mineralogist: California Mining Bureau. Report 4, 410 pp.: 137; Palache, Charles, Harry Berman & Clifford Frondel (1944), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Seventh edition, Volume I, John Wiley & Sons, New York: 559-560.
Clinochlore var: Chromian Clinochlore
Description: Abundant. Associated with calcite crystals.
Reference: MacBoyle, Errol (1919), Mines and mineral resources of Nevada County: California Mining Bureau. Report 16, 270 pp. (published as separate chapter): 77; Melhase, John (1935c), Some garnet localities of California: Mineralogist: 3(11): 23; Rynearson, Garn Arthur (1953), Geological investigations of chromite in California: Chromite deposits in the northern Sierra Nevada, California. California Division of Mines and Geology Bulletin 134, part 3 chapter 5: 239; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 434.
Copper
Reference: www.mineralsocal.org
Galena
Reference: MacBoyle, Errol (1919), Mines and mineral resources of Nevada County: California Mining Bureau. Report 16, 270 pp. (published as separate chapter): 67; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 350; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 130; www.mineralsocal.org
Gold
Description: Superb specimens of crystallized gold from a pocket 1½ inches x 1½ inches (3.75 cm x 3.75 cm).
Reference: Rocks & Minerals (1939): 14: 337; Anonymous (1957), World news on mineral occurrences: Rocks & Minerals: 32: 12; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 203.
Photo: © . Gold from Red Ledge Mine, Washington, Washington District, Nevada Co., California, USA
Knorringite
Reference: Handbook of Mineralogy
Magnesiochromite
Reference: www.mineralsocal.org
Muscovite var: Mariposite
Reference: Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 256.
Pyrite
Reference: www.mineralsocal.org
Quartz
Reference: MacBoyle, Errol (1919), Mines and mineral resources of Nevada County: California Mining Bureau. Report 16, 270 pp. (published as separate chapter): 67; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 350; www.mineralsocal.org
Redledgeite (TL)
Type Locality: Red Ledge Mine, Washington, Washington District (Omega District), Nevada Co., California, USA
Colour: Black
Description: Small, brilliant crystals with chromian clinochlore on chromite.
Reference: Gordon, Samuel G. & E.V. Shannon (1928), Chromrutile a new mineral from California: American Mineralogist: 13: 69; Bradley, W.W. (1940), Thirty-sixth report of the State Mineralogist: California Division Mines Report 36: 69; Palache, Charles, Harry Berman & Clifford Frondel (1944), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Seventh edition, Volume I, John Wiley & Sons, New York: 560; Strunz, Hugo (1961), “Chromrutil” von der Red Ledge mine ist kein rutil. Redledgeite: Neues Jahrb. Mineral., Monatsh.: 107; Strunz, Hugo (1963), Redledgeite, eine TiO2-einlagerungestruktur analog kryptomelan: Neues. Jahrb. Min. mh. 5: 116; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 174.
Photo: © Thomas Witzke. Redledgeite from Red Ledge Mine, Washington, Washington District, Nevada Co., California, USA
Rutile
Description: Chromian variety.
Reference: Dana 7:I:559.
'Serpentine Group'
Reference: USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10163996.
Photo: © Lyla J. Tracy. Serpentine Group from Red Ledge Mine, Washington, Washington District, Nevada Co., California, USA
Stibnite
Reference: MacBoyle, Errol (1919), Mines and mineral resources of Nevada County: California Mining Bureau. Report 16, 270 pp. (published as separate chapter): 67; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 350; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 130; www.mineralsocal.org
Talc
Reference: USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10163996.
Uvarovite
Colour: Green
Description: Occurs as fine crystals coating chromite.
Reference: MacBoyle, Errol (1919), Mines and mineral resources of Nevada County: California Mining Bureau. Report 16, 270 pp. (published as separate chapter): 77; Melhase, John (1935c), Some garnet localities of California: Mineralogist: 3(11): 23; Rynearson, Garn Arthur (1953), Geological investigations of chromite in California: Chromite deposits in the northern Sierra Nevada, California. California Division of Mines and Geology Bulletin 134, part 3 chapter 5: 239; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 497; www.mineralsocal.org
Photo: © Weinrich Minerals, Inc.. Uvarovite from Red Ledge Mine, Washington, Washington District, Nevada Co., California, USA


20 entries listed. 16 valid minerals. 1 (TL) - type locality of valid minerals.

References

Trask, John Boardman (1853), Report on the geology of the Sierra Nevada, or California Range: California Legislature, 4th. sess., Ap. To Jour., S. Doc. 59, 30 pp.: 25.

Hanks, Henry Garber (1884), Fourth report of the State Mineralogist: California Mining Bureau. Report 4, 410 pp. (includes catalog of minerals of California pp. 63-410), and miscellaneous observations on mineral products): 137.

Bradley, W.W., Huguenin, Emile, Logan, C.A., Tucker, W.B., and Waring, C.A. (1918), Manganese and chromium in California: California Mining Bureau. Bulletin 76, 248 pp.: 158.

Logan, Clarence August (1918), Unpublished Field Report, Nevada County No. 203, Red Ledge.

MacBoyle, Errol (1919), Mines and mineral resources of Nevada County: California Mining Bureau. Report 16, 270 pp. (published as separate chapter): 63, 67, 77.

Gordon, Samuel G. & E.V. Shannon (1928), Chromrutile a new mineral from California: American Mineralogist: 13: 69.

Melhase, John (1935c), Some garnet localities of California: Mineralogist: 3(11): 23.

Rocks & Minerals (1939): 14: 337.

Bradley, W.W. (1940), Thirty-sixth report of the State Mineralogist: California Division Mines Report 36: 69.

Palache, Charles, Harry Berman & Clifford Frondel (1944), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Seventh edition, Volume I, John Wiley & Sons, New York: 559-560.

Rynearson, Garn Arthur (1953), Geological investigations of chromite in California: Chromite deposits in the northern Sierra Nevada, California. California Division of Mines and Geology Bulletin 134, part 3 chapter 5: 239.

Anonymous (1957), World news on mineral occurrences: Rocks & Minerals: 32: 12.

Strunz, Hugo (1961), “Chromrutil” von der Red Ledge mine ist kein rutil. Redledgeite: Neues Jahrb. Mineral., Monatsh.: 107-111.

Strunz, Hugo (1963), Redledgeite, eine TiO2-einlagerungestruktur analog kryptomelan: Neues. Jahrb. Min. mh. 5: 116-119.

McCulloch, W.C., Oesterling, W.A., Spurck, W.H., & Tischler, M.S. (1964), Minerals for Industry, Northern California, Southern Pacific Company: Vol. II: 31.

Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 118, 136, 137, 141, 143, 194, 203, 256, 319, 350.

Bancroft, Peter (1973) The World's Finest Minerals and Crystals. Viking Press: 154.

Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 130, 174, 434, 497.

Bancroft, Peter (1984) Gem and Crystal Treasures. Western Enterprises, Mineralogical Record: 15: 89.

USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10031922 & 10163996.

U.S. Bureau of Mines, Minerals Availability System (MAS) file #0060570726.

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