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Pumice

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Mono Lake, Mono Co., California, USA

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A natural glass containing numerous gas cavities, presenting the appearance of a foam. Often floats on water.

Classification of Pumice

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Other Names for Pumice

Other Languages:
German:Bims

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Industrial Uses:Abrasive.

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    • Localities for Pumice

    The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
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    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Argentina
    Ra´´ul Jorge Tauber Larry
    Raúl Jorge Tauber Larry´s collection
    Raúl Jorge Tauber Larry´s collection. Raúl Jorge Tauber Larry site observation.
    Austria
     
    • Tyrol
      • North Tyrol
        • Ötz valley
          • Umhausen
    		Eur. J. Mineral. , 1993, 5, pp. 893-902.
    Dominican Republic
     
    • Barahona Province
      • Sierra de Baoruco
        • Los Checheses
    		Robert Woodruff and Emmanuel Fritsch (1989) Blue pectolite from the Dominican Republic. Gems & Gemology, winter 1989, 216-225.
    Italy
     
    • Sicily
      • Messina Province
        • Eolie Islands (Aeolian Islands)
          • Lipari
            • Lipari Island
              • Canneto
                • Punta Castagna
    		Ferdinando Giovine collected when the quarry was active
    Portugal
     
    • Azores District
    		Rui Nunes photo
    USA
     
    • Alaska
      • Kenai Peninsula Borough
        • Redoubt District
          • Augustine Island
    		U.S. Geological Survey, 2008, Alaska Resource Data File (ARDF): U.S. Geological Survey Open-File Report 2008-1225.
    U.S. Geological Survey, 2008, Alaska Resource Data File (ARDF): U.S. Geological Survey Open-File Report 2008-1225.
      • Kodiak Island Borough
        • Bristol Bay District
    		U.S. Geological Survey, 2008, Alaska Resource Data File (ARDF): U.S. Geological Survey Open-File Report 2008-1225.
    U.S. Geological Survey, 2008, Alaska Resource Data File (ARDF): U.S. Geological Survey Open-File Report 2008-1225.
    U.S. Geological Survey, 2008, Alaska Resource Data File (ARDF): U.S. Geological Survey Open-File Report 2008-1225.
    • Arizona
      • Apache Co.
    		AZ Dept. of Min. Resources, Industrial in. Rpt.: 12.
    Arizona Dept. of Transportation files.
    AZ Dept. Min. Resources Industrial Minerals Rpt.: 12.
    AZ Dept. Min. Resources Gila Valley Block Co. file; Bur. Land Mgmt. unpatented claims lead file 2048.
    AZ Dept. Min. Resources Industrial Minerals Rpt.: 12.
      • Cochise Co.
    		MRDS database Dep. ID file #10258094, MAS ID #0040030727.
        • San Bernardino Valley
    		MRDS database Dep. ID file #10258704, MRDS ID #TC35319, MAS ID #0040030707.
      • Coconino Co.
        • Angell quadrangle
    		MRDS file #10258555.
    Phillips, K.A. (1987), Arizona Industrial Minerals, AZ Dept. of Mines & Minerals Min.Rpt. 4; Peirce, H.W. (1990), AZ Geol. Sur. Industrial Minerals card file.
        • Ash Fork quadrangle
    		MRDS file #10210518.
    AZ Dept. Min. Resources active mine file.
        • Bellemont quadrangle
    		MRDS file #10282391.
        • Bill Williams Mountain quadrangle
    		MRDS file #10234082.
        • Cameron quadrangle
    		MRDS file #10136807.
        • Coconino National Forest
    		Elevatorski, E.A. (1978), Arizona Industrial Minerals, AZ Dept. of Min. Resources, Min Rpt. No. 2; Peirce, H.W. (1990), AZ Geol. Sur. Industrial Minerals card file.
    AZ Dept. Mines & Min. Resources (1989), Directory of active mines in Arizona, incorporating sand and gravel operations 1989-1990, AZ Dept. Of Mines & Min. Resources Directory; Phillips, K.A. (1987), Arizona Industrial Minerals, AZ Dept. of Mines & Minerals Min. Rpt. 4.
    Phillips, K.A. (1987), Arizona Industrial Minerals, AZ Dept. of Mines & Mineral Resources Rpt. 4; Peirce, H.W. (1990), AZ Geol. Surv. Industrial Minerals card file.
    Phillips, K.A. (1987), Arizona Industrial Minerals, AZ Dept. of Mines & Minerals; Arizona Dept. of Mines & Min. Resources (1989), Directory of active mines in Arizona incorporating sand and gravel operations - 1989-1990, AZ Dept. Mines & Min. Resources Dir.
        • Dutton Hill quadrangle
    		MRDS file #10161001.
        • Eagle Nest Mountain quadrangle
    		MRDS file #10233751.
        • Ebert Mountain quadrangle
    		MRDS file #10283080.
        • Flagstaff East quadrangle
    		MRDS file #10234235 .
        • Flagstaff West quadrangle
    		MRDS file #10234278.
        • Garland Prarie Quadrangle
    		MRDS database Dep. ID #10161198, MAS ID #0040050076.
    MRDS database Dep. ID #10185910, MAS ID #0040050075.
        • Happy Jack quadrangle
    		MRDS file #10161275.
    AZ Dept. Min. Resources Harenberg Mine file.
        • Hearst Mountain quadrangle
    		MRDS file #10209712.
        • Horse Trap Mesa quadrangle
    		MRDS file #10282891.
        • Humphreys Peak quadrangle
    		MRDS file #10158892.
        • Kaibab National Forest
    		AZ Dept. Mines & Min. Resources (1989), Directory of active mines in Arizona, incorporating sand and gravel operations 1989-1990, AZ Dept. Of Mines & Min. Resources Directory 36.
        • Kendrick Peak quadrangle
    		MRDS file #10258113.
        • Kinnikinick Lake quadrangle
    		MRDS file #10161358.
    AZ Dept. Min. Resources Lava claim file.
        • Matterhorn map area
    		MRDS file #10112615.
        • Mormon Lake quadrangle
    		MRDS file #10234233.
        • Mormon Mountain quadrangle
    		MRDS file #10233594.
        • Parks quadrangle
    		MRDS file #10258692.
        • Picacho Butte quadrangle
    		MRDS file #10210412.
    AZ Dept. Min. Resources Pouquette file.
    AZ Dept. Mineral Resources Arizona Mine file.
        • San Franciscan volcanic field (San Francisco Peaks; San Francisco Mts)
          • O'Leary Peak
    		Peirce, H.W. (1990), Arizona Geol. Surv. Industrial Mineral card files; Phillips, K.A. (1987), Arizona Industrial Minerals, AZ Dept. of Mines & Minerals.
          • O'Leary Peak quadrangle
    		MRDS file #10113070.
    Peirce, H.W. (1990), Arizona Geol. Surv. Industrial Mineral card files; Phillips, K.A. (1987), Arizona Industrial Minerals, AZ Dept. of Mines & Minerals.
          • Sunset Crater East quadrangle
    		MRDS file #10258123.
    AZ Dept. Min. Resources Industrial Mnerals Rpt.: 22.
        • Stoneman Lake quadrangle
    		MRDS file #10161120.
    Bur. Land Management Mining District sheets 134 135, 143 & 144; AZ Dept. Min. Resources Sunset Manganese file.
        • Tuba City East quadrangle
    		MRDS file #10113004.
        • Valle quadrangle
    		MRDS file #10258270.
        • White Horse Hills quadrangle
    		MRDS file #10282399.
        • Williams quadrangle
    		MRDS file #10233953.
        • Wing Mountain quadrangle
    		MRDS file #10234122.
        • Winona quadrangle
    		MRDS file #10258506.
      • Gila Co.
        • San Carlos Indian Reservation
          • San Carlos
    		MRDS database Dep. ID #10062106, MRDS ID #TC35345.
          • San Carlos area
    		MRDS database Dep. ID #10185388, MAS ID #0040070668.
      • Graham Co.
        • Black Hills
          • Black Hills Rockhound Area
    		MRDS database Dep. ID #10233832, MAS ID #0040090102.
    MRDS database Dep. ID #10014580, MRDS ID #D011416.
    MRDS database Dep. ID #10024056, MRDS ID #I008303.
        • Gila Mts
          • Lone Star District (Safford District; Dos Pobres District)
            • Gila Valley
              • Sanchez
    		MRDS database Dep. ID #10062101, MRDS ID #TC35327.
        • Tollgate Canyon area
    		MRDS database Dep. ID #10024057, MRDS ID #I008304.
      • Greenlee Co.
        • Big Lue Mountains (Big Laue Mountain)
    		MRDS database Dep. ID #10024058, MRDS ID #I008305.
    MRDS database Dep. ID #10024059, MRDS ID #I008307.
    MRDS database Dep. ID #10282933, MAS ID #0040110069.
    MRDS database Dep. ID #10060357 MRDS ID #TC10734.
      • La Paz Co.
        • Buckskin Mts
          • Cienega District
    		Elevatorski, E.A. (1978), Arizona Industrial Minerals, Arizona Department of Mineral Resources, Minerals Report No. 2: 69. MRDS database Dep. ID file #10137546, MAS ID #0040120512.
        • Granite Wash Mts
          • Ellsworth District
    		Phillips, K.A. (1987), Arizona Industrial Minerals, 2nd. Edition, Arizona Department of Mines & Minerals Mineral Report 4, 185 pp. MRDS database Dep. ID file #10027675, MRDS ID #M003790.
        • Plomosa Mts
          • Plomosa District
    		Phillips, K.A. (1987), Arizona Industrial Minerals, 2nd. Edition, Arizona Department of Mines & Minerals Mineral Report 4, 185 pp. MRDS database Dep. ID file #10024060, MRDS ID #I008308.
      • Maricopa Co.
        • Big Horn Mts
          • Big Horn District
    		Phillips, K.A. (1987), Arizona Industrial Minerals AZ Dept. of Mines and Mineral Resources Mineral Rpt. 4; MRDS file #10024063.
    MRDS file #10234934.
    MRDS file #10186532.
    MRDS file #10186130.
    AZ Dept. Min. Resources (ADMR) Industrial Minerals Rept.: 39; MRDS file #10113406.
    Phillips, K.A. (1987), Arizona Industrial Minerals AZ Dept. of Mines and Mineral Resources Mineral Rpt. 4; MRDS file #10024066.
    MRDS file #10259241.
    AZ Dept. Min. Resources (ADMR) Industrial Minerals Report: 39; MRDS file #10113865.
    MRDS file #10062102.
    MRDS file #10062130.
      • Mohave Co.
    		AZ Dept. Min. Resources (ADMR) Self Bentonite file; MRDS file #10137560.
    MRDS file #10186396.
    MRDS file #10234704.
      • Navajo Co.
        • Bidahochi Butte area
    		Shoemaker, E.M., USGS PP 300: 181; AZ Dept. Min. Resources Industrial Minerals Rpt.: 47.
    Phillips, K.A. (1987), Arizona Industrial Minerals AZ Dept. of Mines and Mineral Resources Mineral Rpt. 4.
    Operator files of Reidhead Sand & Rock, Inc.
    Phillips, K.A. (1987), Arizona Industrial Minerals AZ Dept. of Mines and Mineral Resources Mineral Rpt. 4.
      • Santa Cruz Co.
        • Pajarito Mts
          • Pajarito District
    		Phillips, K.A. (1987), Arizona Industrial Minerals, 2nd. Edition, Arizona Department of Mines & Minerals Mineral Report 4, 185 pp. MRDS database Dep. ID file #10024088, MRDS ID #I008341.
      • Yavapai Co.
        • Ash Fork Quadrangle
    		MRDS database Dep. ID #10134522, MAS ID #0040250460.
    MRDS database Dep. ID #10186603, MAS ID #0040250461.
        • Casner Butte Quadrangle
    		MRDS database Dep. ID #10113898, MAS ID #0040250446.
    MRDS database Dep. ID #10186732, MAS ID #0040250449.
    MRDS database Dep. ID #10113839, MAS ID #0040250602.
        • Crookton Quadrangle
    		MRDS database Dep. ID #10161879, MAS ID #0040250462.
    MRDS database Dep. ID #10113447, MAS ID #0040250615.
        • Eureka District
          • Bagdad
    		MRDS database Dep. ID #10102225, MRDS ID #I008347.
        • Kirkland area
    		MRDS database Dep. ID #10024093, MRDS ID #I008346.
    Elevatorski, E.A. (1978), Arizona Industrial Minerals, Arizona Department of Mineral Resources, Minerals Report No. 2: 63; MRDS database Dep. ID #10258975, MAS ID #0040251252.
    MRDS database Dep. ID #10234573, MAS ID #0040251351.
        • Meath Spring Quadrangle
    		MRDS database Dep. ID #10135205, MAS ID #0040250455.
    MRDS database Dep. ID #10210612, MAS ID #0040250456.
    MRDS database Dep. ID #10186084, MAS ID #0040250033.
    MRDS database Dep. ID #10091827, MRDS ID #I008372.
    MRDS database Dep. ID #10024089, MRDS ID #I008342.
        • Seligman Quadrangle
    		MRDS database Dep. ID #10186573, MAS ID #0040250450.
        • Seligman SE Quadrangle
    		MRDS database Dep. ID #10210728, MAS ID #0040250451.
    MRDS database Dep. ID #10062121, MRDS ID #TC35380.
    • California
      • Contra Costa Co.
        • Bay Point (West Pittsburg)
    		Weaver, C.E. (1949), Geology and Mineral Deposits of an Area North of San Francisco Bay, California: California Division of Mines Bulletin 149: 96.
    Davis, Fenelon Francis & J.W. Vernon (1951), Mines and mineral resources of Contra Costa County, California: California Journal of Mines and Geology (Report 47): 47(4): 578-579; Davis, Fenelon Francis and H.B. Goldman (1958) Mines and mineral resources of Contra Costa County. California Journal of Mines and Geology: 54(4): 574, Pl. 5.
      • Humboldt Co.
        • Coastal Range
          • Ferndale
    		Ogle, Burdette Adrian (1953), Geology of Eel River Valley Area, Humboldt County, California: California Division Mines Bulletin 164: 83; USGS MRDS database (2005), loc. file ID #10139319.
      • Imperial Co.
        • Estelle
    		Tucker, W. Burling (1926), Imperial, Inyo Counties: California Mining Bureau. (Report 22): 22: 280; California Journal of Mines and Geology (1955) (Report 51): 51: 362.
        • Niland
    		CFMS Newsletter, January 2003
        • Verdant
    		Morton, P.K. (1977) Mines and mineral resources of Imperial County, California. California Division of Mines and Geology County Report 7, 104 pp.
      • Lake Co.
        • Glenview
    		California Division of Mines and Geology (1990), Mines and mineral producers active in California (1988-89), California Department of Conservation, Division of Mines and Geology, Special Publication 103.
        • Lower Lake
    		USGS MRDS database (2005).
    California Division of Mines and Geology (1981), Mines & Mineral Producers Active in California during 1980, Special Publication 58; California Division of Mines and Geology (1990), Mines and mineral producers active in California (1988-89), California Department of Conservation, Division of Mines and Geology, Special Publication 103.
        • Sulphur Creek District (Sulfur Creek District; Wilbur Springs District)
          • Clear Lake
    		MESA file ID #0401017; USGS MRDS database (2005).
    California Division of Mines Bulletin 174 (1956): 32, 94.
    MESA ID # 0403641; USGS MRDS database (2005).
          • Clear Lake Oaks
    		California Division of Mines and Geology (1981), Mines & Mineral Producers Active in California during 1980, Special Publication 58; California Division of Mines and Geology (1990), Mines and mineral producers active in California (1988-89), California Department of Conservation, Division of Mines and Geology, Special Publication 103.
    California Division of Mines and Geology (1990), Mines and mineral producers active in California (1988-89), California Department of Conservation, Division of Mines and Geology, Special Publication 103.
          • Lower Lake
    		California Division of Mines and Geology (1981), Mines & Mineral Producers Active in California during 1980, Special Publication 58.
      • Lassen Co.
        • Johnstonville
    		MESA file ID #0401028; USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10232054.
        • Letterbox Hill
    		Laizure, Clyde McK (1921), Redding field division: California Mining Bureau. Report 17: 511; California Division of Mines Bulletin 174 (1956): 29, 93; Industrial West Foundation, Non-Metallics II-D: 80.
        • Red Rock
    		California Division of Mines and Geology (1981), Mines & Mineral Producers Active in California during 1980, Special Publication 58; USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10212195.
      • Los Angeles Co.
        • Sierra Pelona Mts (Sierra Pelona Range)
          • Castaic
    		Gay, T.E. and Hoffman, S.R. (1954) Mines and mineral deposits of Los Angeles County, California. California Journal of Mines and Geology, California Division of Mines (Report 50): 50(3&4): No. 206, p. 688; California Division of Mines Bulletin 174 (1956): 87-88; Oakeshott, Gordon Blaisdell (1958) Geology and mineral deposits of San Fernando quadrangle, Los Angeles County, California. California Division of Mines Bulletin 172, 147 pp.: 118-119.
      • Modoc Co.
        • Cascade Range
          • Ambrose
            • Washington Mountain
    		USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10188370.
          • Cougar Butte area
    		O’Brien, J.C. (1948), Modoc County: California Journal of Mines and Geology, California Division Mines (Report 44): 44(4): 350-351; California Division Mines & Geology Bulletin 176: 434-436; Mineral Information Service (1957) California Division of Mines: 10(1) (January).
          • East Sand Butte
    		California Division of Mines Bulletin 174 (1956): 29.
          • Newell
            • Horse Mountain
    		USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10187977 & 10092356.
          • Tionesta
    		O’Brien, J.C. (1948), Modoc County: California Journal of Mines and Geology, California Division Mines (Report 44): 44(4): 353; Mineral Information Service (1957) California Division of Mines: 10(1) (January): 2.
    USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia.
    O’Brien, J.C. (1948), Modoc County: California Journal of Mines and Geology, California Division Mines (Report 44): 44(4): 354; Mineral Information Service (1957) California Division of Mines: 10(1) (January): 2.
          • Twin Sister
    		USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10140008.
        • Modoc Plateau
          • Daphnedale Park
    		California Division of Mines and Geology (1990), Mines and mineral producers active in California (1988-89), California Department of Conservation, Division of Mines and Geology, Special Publication 103.
        • Warner Mts
          • Eagleville
    		Miller, M. S. (1988), Mineral Resources of the South Warner Contiguous Wilderness Study area: U.S. Bureau of Mines Mineral Land Assessment Open-File Report; USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10285580.
      • Mono Co.
    		http://vulcan.wr.usgs.gov/LivingWith/VolcanicPast/Places/volcanic_past_devils_postpile.html
      • Napa Co.
        • Napa
    		Davis, Fenelon Francis (1948), Mines and mineral resources of Napa County, California: California Division Mines (Report 44): 44(2): 172-173; California Division of Mines Bulletin 174 (1956): 30; USGS MRDS database (2005), loc. file ID #10031598.
        • Vichy Springs
    		Davis, Fenelon Francis (1948), Mines and mineral resources of Napa County, California: California Division Mines Report 44: 174; USGS MRDS database (2005).
    Davis, Fenelon Francis (1948), Mines and mineral resources of Napa County, California: California Division Mines Report 44: 173-174.
    Davis, Fenelon Francis (1948), Mines and mineral resources of Napa County, California: California Division Mines (Report 44): 44(2): 17_; USGS MRDS database (2005), loc. file ID #10031593.
    Davis, Fenelon Francis (1948), Mines and mineral resources of Napa County, California: California Division Mines (Report 44): 44(2): 175-176; California Division of Mines Bulletin 174 (1956): 31; USGS MRDS database (2005), loc. file ID #10031592.
    Davis, Fenelon Francis (1948), Mines and mineral resources of Napa County, California: California Division Mines (Report 44): 44(2): 176; California Division of Mines Bulletin 174 (1956): 33; USGS MRDS database (2005), loc. file ID #10031591.
      • San Bernardino Co.
        • Amboy
    		USGS MRDS database (2005).
      • San Luis Obispo Co.
        • Creston
    		Laizure, Clyde McK (1925), San Francisco field division: California Journal of Mines and Geology, California Mining Bureau (Report 21): 21: 537-538; Franke, Herbert A. (1935a), Mines and mineral resources of San Luis Obispo County, California: California Division Mines (Report 31): 31(4): 460-461; Minobras (1973), Southern California Industrial Minerals: 92.
        • Pismo Beach
    		Fairbanks, Harold W. (1904), Description of the San Luis quadrangle: USGS Atlas, San Luis folio (folio 101), 14pp.: 14; USGS MRDS database (2005), loc. file ID #10165195.
        • Santa Lucia Mts (Santa Lucia Range)
          • Adelaide District (Adelaide Klau District)
            • Adelaida
    		Minobras (1973), Southern California Industrial Minerals: 92; USGS MRDS database (2005), loc. file ID #10165352.
          • Arroyo Grande
    		Fairbanks, Harold W. (1904), Description of the San Luis quadrangle: USGS Atlas, San Luis folio (folio 101), 14pp.: 14; USGS MRDS database (2005), loc. file ID #10237715.
      • Shasta Co.
        • Cascade Range
          • Brush Mountain
    		California Division of Mines and Geology (1990), Mines and mineral producers active in California (1988-89), California Department of Conservation, Division of Mines and Geology, Special Publication 103; USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10140932.
          • Cinder Butte
    		California Division of Mines and Geology (1981), Mines & Mineral Producers Active in California during 1980, Special Publication 58; USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10141101.
          • Sugarloaf Peak (5)
    		USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10165519.
        • Klamath Mts
          • Blue Mountain
    		USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10262356.
          • Shasta District
            • Shasta
    		California Division of Mines and Geology (1981), Mines & Mineral Producers Active in California during 1980, Special Publication 58; USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10116888.
      • Siskiyou Co.
        • Cascade Range
          • Black Mountain
    		California Division of Mines Bulletin 117: 170; Pacific Southwest Field Committee (PSFC) (1955), Natural Resources of NW California Geol. Mines Resources: notes.
          • Cinder Cone
    		O’Brien, J.C. (1947), Mines and mineral resources of Siskiyou County: California Journal of Mines and Geology, California Division of Mines (Report 43): 43(4): 458.
          • Dead Horse Summit
    		Logan, Clarence August (1925), Sacramento field division: California Mining Bureau. (Report 21): 21(4): 495; USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10238897.
          • Garner Mountain
            • Tamarack Flat
    		Gems & Minerals (1963): 20-22 (July, 1963).
          • Glass Mountain
    		O’Brien, J.C. (1947), Mines and mineral resources of Siskiyou County: California Journal of Mines and Geology, California Division Mines (Report 43): 43(4): 458.
    O’Brien, J.C. (1947), Mines and mineral resources of Siskiyou County: California Journal of Mines and Geology, California Division Mines (Report 43): 43(4): 458.
    O’Brien, J.C. (1947), Mines and mineral resources of Siskiyou County: California Journal of Mines and Geology, California Division Mines (Report 43): 43(4): 458.
    California Division of Mines Bulletin 174 (1956): 27, 92.
          • Gray Butte
    		McCulloch, W.C., Oesterling, W.A., Spurck, W.H., & Tischler, M.S. (1964), Minerals for Industry, Northern California, Southern Pacific Company: Vol. II: 185; USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10286512.
          • High Hole crater
    		California Division of Mines and Geology (1981), Mines & Mineral Producers Active in California during 1980, Special Publication 58.
          • Indian Butte
    		USGS MRDS database (2005).
    California Division of Mines and Geology (1981), Mines & Mineral Producers Active in California during 1980, Special Publication 58; California Division of Mines and Geology (1990), Mines and mineral producers active in California (1988-89), California Department of Conservation, Division of Mines and Geology, Special Publication 103.
    O’Brien, J.C. (1948), Current and recent mining activities in the Redding district: California Division Mines (Report 44): 44(4): 336-378.
    O’Brien, J.C. (1947), Mines and mineral resources of Siskiyou County: California Journal of Mines and Geology, California Division of Mines (Report 43): 43(4): 458-459.
          • Little Glass Mountain
    		California Division of Mines Bulletin 174 (1956): 27-28.
    California Division of Mines Bulletin 174 (1956): 28, 92.
          • Macdoel
            • Juniper Knoll
    		California Division of Mines Bulletin 114: 156; California Division of Mines and Geology Active Mines Database (1991).
          • Mount Hoffman
    		Averill, Charles V. (1931), Preliminary report on economic geology of the Shasta quadrangle: California Journal of Mines and Geology, California Division Mines (Report 27): 27: 62.
    O’Brien, J.C. (1947), Mines and mineral resources of Siskiyou County: California Journal of Mines and Geology, California Division of Mines (Report 43): 43(4): 458.
          • Mount Shasta
    		MESA mine file No. 0401865.
          • Mt Hebron
            • Horsethief Butte
    		MESA Identification No. 04-02666, 11-4-75, Phoenix, Arizona.
          • Paint Pot Crater
    		Averill, Charles V. (1935), Mines and mineral resources of Siskiyou County: California Journal of Mines and Geology, California Division Mines (Report 31): 31(3): 335.
        • Grenada
    		California Division of Mines and Geology (1990), Mines and mineral producers active in California (1988-89), California Department of Conservation, Division of Mines and Geology, Special Publication 103.
    California Division of Mines and Geology (1990), Mines and mineral producers active in California (1988-89), California Department of Conservation, Division of Mines and Geology, Special Publication 103.
      • Trinity Co.
        • Klamath Mts
          • Minersville District
            • Trinity Dam
    		Logan, Clarence August (1926), El Dorado, Shasta and Trinity Counties: California Journal of Mines and Geology, California Mining Bureau. (Report 22): 22(2): 67; California Division of Mines Bulletin 174 (1956): 29, 93; USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10214437; California Division of Mines Mineral Abstracts, Pumice and Volcanic Ash: 26.
      • Ventura Co.
        • Bardsdale
          • Grimes Canyon
    		California Division of Mines and Geology (1990), Mines and mineral producers active in California (1988-89), California Department of Conservation, Division of Mines and Geology, Special Publication 103; USGS MRDS database (2005).
    • Colorado
      • Chaffee Co.
        • Nathrop
    		U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
      • Conejos Co.
    		U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
      • Eagle Co.
    		U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
      • Saguache Co.
        • Cochetopa District (Cochetopa Creek District)
    		U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    • Hawaii
      • Hawaii Co. (Hawaii Island)
        • Hualalai Volcano
    		www.hawaiinews.com/archives/volcano_watch/000309.shtml
    • Idaho
      • Blaine Co.
        • Camas District
    		U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
      • Bonneville Co.
        • Ammon Area
    		U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
        • Idaho Falls Area
    		U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
        • Iona Area
    		U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
        • Willow Creek - Caribou District
    		U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
      • Oneida Co.
        • Daniels Area
    		U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
      • Owyhee Co.
        • Marsing Area
    		U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
      • Power Co.
        • Rockland Area
    		U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
      • Teton Co.
        • Tetonia Area
    		U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
      • Twin Falls Co.
        • Goose Creek District
    		U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    • Montana
      • Granite Co.
        • Alps District
    		U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
        • Drummond Area
    		U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
        • John Long Mountains Area
    		U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
      • Powell Co.
        • Boulder Mountains Area
    		U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
        • Garnet Range Area
    		U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
        • Zosell District (Emery District)
    		U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
      • Ravalli Co.
        • Sapphire Mountains Area
    		U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
        • Three Mile District
    		U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    • Oregon
      • Deschutes Co.
    		DOGAMI MLR 09-0025.
    • Utah
      • Garfield Co.
        • Panguitch
    		U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
        • Panguitch Lake Area
    		U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
      • Juab Co.
        • Keg Mts (McDowell Mts)
    		U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
        • Sevier Bridge Reservoir Area
    		U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
      • Millard Co.
        • Black Rock Desert
    		U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
        • House Range
    		U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
      • Tooele Co.
        • Faust Area
    		U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
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