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

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List of minerals arranged by Strunz 10th Edition classification
Group 1 - Elements
Copper1.AA.05Cu
Gold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
Arsenopyrite2.EB.20FeAsS
Galena2.CD.10PbS
Pyrite2.EB.05aFeS2
Stibnite2.DB.05Sb2S3
Group 4 - Oxides and Hydroxides
Chromite4.BB.05Fe2+Cr3+2O4
Magnesiochromite4.BB.05Mg(Cr,Al,Fe)2O4
Quartz4.DA.05SiO2
Redledgeite (TL)4.DK.05bBa(Ti4+6Cr3+2)O16
Rutile4.DB.05TiO2
Group 5 - Nitrates and Carbonates
Ankerite5.AB.10Ca(Fe2+,Mg)(CO3)2
Calcite5.AB.05CaCO3
Group 9 - Silicates
Clinochlore
var: Chromian Clinochlore
9.EC.55Mg5(Al,Cr)2Si3O10(OH)8
Knorringite9.AD.25Mg3Cr2(SiO4)3
Muscovite
var: Mariposite
9.EC.15K(Al,Cr)2(Al,Si)4O10(OH)2
Talc9.EC.05Mg3(Si4O10)(OH)2
Uvarovite9.AD.25Ca3Cr2(SiO4)3
Unclassified Minerals
'Chlorite Group'-
'Serpentine Group'-D2[Si2O5](OH)4 + or - nH2O


20 entries listed. 18 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Logan, Clarence August (1918), Unpublished Field Report, Nevada County No. 203, Red Ledge.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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