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Cyrtolite

Formula:
Zr[(SiO
 
4
),(OH)
 
4
]
Name:Name refers to its curved crystal faces. From the Greek κνρτος, for bent.
A variety of Zircon

Dana's Textbook of Mineralogy by w.E. Ford (pg 611, 4th ed.,1947) treats cyrtolite as a chemical variety that "contains uranium, yttrium, and other rare elements". Any old zircon containing uranium will be metamict.

Jeffrey de Fourestier in Glossary of Mineral Synonyms (pg 89, Special publication #2, Canadian Mineralogist, 1998) calls cyrtolite a metamict zircon.

Originally reported from Rockport, Essex Co., Massachusetts, USA, by W.J. Knowlton in Art. XXIV Contributions to Chemistry from the Laboratory of the Lawrence Scientific School, No. 4, On a new mineral from Rockport, Mass. in Am. Jour. Sci., 2nd Series, vol. XLIV, no. 131, pp 224-226, (1867).

Classification of Cyrtolite

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Chemical Properties of Cyrtolite

Formula:
Zr[(SiO
 
4
),(OH)
 
4
]
Essential elements:O, Si, Zr
All elements listed in formula:H, O, Si, Zr

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.

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    Localities for Cyrtolite

    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.
    (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.
    Bolivia
     
    • Santa Cruz Department
      • Ñuflo de Chavez Province
        • La Bella
    Federico Ahlfeld & Jorge Munoz Reyes: Las Especies Minerales de Bolivia (Banco Minero de Bolivia, 1955)
    Brazil
     
    • Central-West Region
    Canada
     
    • Ontario
      • Algoma District
        • Blind River-Elliot Lake uranium district
    Robertson, J.A. (1976) The Blind River Uranium Deposits: the ores and their setting. (Ontario Division of Mines, Miscellaneous paper 65)
      • Haliburton Co.
        • Cardiff Township
    Ref.: Geological Survey of Canada Miscellaneous Report 39
          • Wilberforce
    No reference listed
        • Monmouth Township
    Ref.: Geological Survey of Canada Miscellaneous Report 39.
      • Hastings Co.
        • Bancroft District
          • Dungannon Township
    [www.johnbetts-fineminerals.com]
          • Monteagle Township
    Ref.: Geological Survey of Canada Miscellaneous Report 39.
            • Hybla
    [MinRec 13:199]
    GSC misc. report 39; Dana 7:I: 772, 785.
      • Parry Sound District
        • Conger Township
          • Blackstone Lake
    Ref.: Geological Survey of Canada Miscellaneous Report 39.
        • Henvey Township
    Geological survey of canada misc report 39
      • Peterborough Co.
        • Crystal Lake
    Ref.: Geological Survey of Canada Miscellaneous Report 39.
      • Renfrew Co.
        • Lyndoch Township
          • Quadeville
    Rocks and Minerals For The Collector: Ottawa to Northbay, Ontario; Hull to Waltham
    • Québec
      • Gatineau Co.
        • Wakefield Township
          • St-Pierre-de-Wakefield
    Hogarth, D. et al., 1983, Classic Mineral Collecting Localities in Ontario and Quebec:, p. 29.
    China
     
    • Sichuan Province
      • Liangshan Autonomous Prefecture
        • Huili Co.
    Hong Zhong, Weiguang Zhu, Zhuyin Chu, Defeng He, and Xieyan Song (2007): Chemical Geology 236(1/2), 112-133.
    Ethiopia
     
    • Wallaga (Welega; Wollega; Ouallega) Province
      • Assosa region
    P.M. Kartashov data
    Kyrgyzstan
     
    no reference
    Madagascar
     
    • Antananarivo Province
      • Vakinankaratra Region (Betafo - Antsirabé region)
        • Betafo District
          • Mahaiza Commune
    Lacroix, A. (1912): Sur un groupe de niobotantalates cubiques, radioactifs, des pegmatites du Vakinankaratra . Bulletin de la Société française de Minéralogie, Paris 35 , 85-92
    Russia
     
    • Central Region
      • Tambovskaya Oblast'
    Patyk-Kara, N.G., Levchenko, E.N., Stekhin, A.I., Barsegyan, V.V., Bochneva, A.A., Chizhova, I.A., Andrianova, E.A., and Dubinchuk, V.T. (2008): Geology of Ore Deposits 50(3), 218-239.
    • Eastern-Siberian Region
      • Transbaikalia (Zabaykalye)
        • Buriatia (Buryatia) Republic
          • Ermakovskoe Be Deposit
            • Zunshibir' valley
    Mironov A.G. and Gofman A.F, (1979) Barian betafite in pegmatites of Transbaikalien, - Minerals and Minerals Paragenesisa of Rocks and Ores, Leningrad, Nauka, p.127-132 (in Russian).
      • Tuva Republic
    no reference
        • Sangilen Upland
    Kapustin Yu.L. (1989) Cerite and ternebohmite from fenites of alkaline massifs of Tuva, - Zapiski VMO, 118(4), p. 47-56 (in Rus.)
    Pavel M. Kartashov data
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
    P.M. Kartashov data
    Slovakia
     
    • Bratislava Region
      • Malé Karpaty Mts
    Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590
    • Košice Region
      • Eastern Slovenské Rudohorie Mts
        • Hnilec
    Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k
    Sweden
     
    • Uppland
      • Vaxholm
        • Resarö
    No reference listed
    USA
     
    • Arizona
      • Graham Co.
        • Aravaipa District
    Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 431.
      • Mohave Co.
        • Boulder Springs
    Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 394; Pabst & Woodhouse (1964); Fitzpatrick, J. & Pabst, A. (1986), Thalenite from AZ, Am.Min.: 71:188-193; Galbraith, F.W. & Brennan (1959), Minerals of AZ: 99.
        • Hualapai (Hualpai) Mts
          • Kingman District
    Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 431.
    • California
      • Riverside Co.
        • Nuevo
      • San Bernardino Co.
    Seaman, 1976. Pegmatite Minerals of the World
    • Colorado
      • Chaffee Co.
    Minerals of Colorado (1997) Eckels, E. B.
      • Douglas Co.
    "Minerals of Colorado, updated & revised", p. 13, by Eckel, Edwin B., 1997
      • El Paso Co.
        • Cheyenne District (St. Peters Dome District)
          • St Peters Dome
    Minerals of Colorado (1997) Eckels, E. B.
      • Fremont Co.
        • Cotopaxi District
    Minerals of Colorado (1997) Eckel, E. B.
    Minerals of Colorado (1997) Eckels, E. B.
        • Cottonwood Creek Area
    Minerals of Colorado (1997) Eckels, E. B.
        • Micanite District
    Minerals of Colorado (1997) E.B. Eckels
      • Gunnison Co.
    Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 26 (Table A-1).
        • Quartz Creek District
          • Ohio City
    Minerals of Colorado (1997) Eckels, E. B.
      • Jefferson Co.
        • Clear Creek Pegmatite Province
    Minerals of Colorado (1997) E.B. Eckels
        • Mount Evans
    Minerals of Colorado (1997) E.B. Eckels
        • South Platte Pegmatite District
    Minerals of Colorado (1997) E.B. Eckels
    Minerals of Colorado (1997) Eckel, E. B.
    Rare-Earth Pegmatites of the South Platte District, Colorado CGS Res Ser 11
    Minerals of Colorado (1997) E.B. Eckels
    Minerals of Colorado (1997) Eckels, E. B.
    Minerals of Colorado (1997) E.B. Eckels
    Minerals of Colorado (1997) E.B. Eckels
      • Saguache Co.
        • Crestone District
    Minerals of Colorado (1997) E.B. Eckels
    Minerals of Colorado (1997) Eckel, E. B.
        • Hayden Pass Area
    Minerals of Colorado (1997) E.B. Eckels
    • Connecticut
      • Fairfield Co.
        • Bethel
    Januzzi, 1976. Mineral Localities of CT and Southeastern NY State
          • North Hatterstown
    Earle C. Sullivan Collection specimen #20-11-P
        • Redding
          • Branchville
    Januzzi, 1976. Mineral Localities of CT and Southeastern NY State
    Januzzi, 1976. Mineral Localities of CT and Southeastern NY State
    Januzzi, 1976. Mineral Localities of CT and Southeastern NY State
      • Hartford Co.
        • Glastonbury
          • South Glastonbury
    In the collection of Kevin Czaja.
      • Middlesex Co.
        • East Hampton
    Januzzi, 1976. Mineral Localities of CT and Southeastern NY State, p147.
    Januzzi, 1976. Mineral Localities of CT and Southeastern NY State
        • Middletown
    Januzzi, 1976. Mineral Localities of CT and Southeastern NY State
    Januzzi, 1976. Mineral Localities of CT and Southeastern NY State
        • Portland
    Januzzi, 1976. Mineral Localities of CT and Southeastern NY State
    Januzzi, 1976. Mineral Localities of CT and Southeastern NY State
          • Collins Hill
    Januzzi, 1976. Mineral Localities of Connecticut and Southeastern New York State (Taylor Assoc./Mineralogical Press); Rocks & Minerals (1955) 30:351-358
    Januzzi, 1976. Mineral Localities of Connecticut and Southeastern New York State (Taylor Assoc./Mineralogical Press)
    Januzzi, 1976. Mineral Localities of CT and Southeastern NY State
    • Maine
      • Knox Co.
        • Warren
    Anderson, 1991. Maine Mineral Localities, 2nd ed.
    • Massachusetts
      • Essex Co.
    Gleba, 1978. Massachusetts Mineral & Fossil Localities
    No reference listed
      • Hampshire Co.
        • Huntington
    Emerson, Geology of Massachusetts and Rhode Island, 1917. (USGS Bulletin 597), p.257.
      • Middlesex Co.
        • Woburn
    Gleba, 1978. Massachusetts Mineral & Fossil Localities
    • New Hampshire
      • Cheshire Co.
        • Walpole
    P Cristofono collection
      • Grafton Co.
        • Groton
    Rocks & Min.: 16:208-211.
      • Strafford Co.
        • Strafford
          • Parker Mt
    Rocks & Min.:64:504.
      • Sullivan Co.
        • Acworth
    Jeremy Zolan Collection; Van King
    • New Mexico
      • Grant Co.
        • Gold Hill District
    NMBMMR Bull 83 Mineral Deposits of Western Grant County, New Mexico
    Minerals of New Mexico 3rd ed.
      • Mora Co.
    Minerals of New Mexico 3rd ed.
    Northrop, Minerals of New Mexico, 3rd Rev. Ed., 1996
    Minerals of New Mexico 3rd ed.
      • San Miguel Co.
    Northrop, Minerals of New Mexico, 3rd rev. ed, 1996
    • New York
      • Saratoga Co.
        • Overlook
    Jensen (1978) Minerals of New York State
      • Westchester Co.
    The Minerals of New York City & Its Environs, New York Mineralogical Club Bull., Vol. 3, No. 1, Manchester, J.G. (1931): 65.
    The Minerals of New York City & Its Environs, New York Mineralogical Club Bull. Vol. 3, No. 1, Manchester, J.G. (1931): 39-44.
    The Minerals of New York City & Its Environs, New York Mineralogical Club Bull. Vol. 3, No. 1, Manchester, J.G. (1931): 39 & 45-46.
    Rocks & Min.: 6:117, 123; 10:86; 23:710-712.
    • North Carolina
      • Burke Co.
        • Brindletown
    Dana 6:1074.
    Gems and Minerals of America-J ay Ellis Ransom-1974
        • Tuxedo
    Wilson,W.F.,and McKenzie,B.J. ,1978,Mineral Collecting Sites in North Carolina, Information Circular 24
        • Zirconia (Tuxedo Station)
    Wilson,W.F, and McKenzie,B.J,1978, Mineral Collecting Sites in North Carolina
    U.S Bureau of Mines/Spatial Data from the Minerals System/Mineral Industry Location System(Mas/Mils)CD-Rom,Sep,1995
      • Jackson Co.
        • Pinhook Gap
    Rocks & Min.: 60: 91.
      • Macon Co.
    E.WM.Heinrich,1950,Paragenesis of the Rhodolite Deposit,Masons Mountain,North Carolina,The American Mineralogist,Vol.35
      • Mitchell Co.
        • Spruce Pine District
          • Spruce Pine
            • Greasy Creek Township
    Wilson,W.F and McKenzie,B.J,1978,Mineral Collecting Sites in North Carolina,Information Circular 24
    Gems and Minerals of America-Jay Ellis Ransom-1974
          • Celo
            • Micaville
    U.S Bureau of Mines/Spatial Data from the Minerals System/Mineral Industry Location System(Mas/Mils)CD-Sep,1995
    • Rhode Island
      • Providence Co.
        • Cumberland
    Miller, C.E. (1972) Rhode Island Minerals and Their Locations. O.D. Hermes, ed. Kingston, RI.
    • Texas
      • Burnet Co.
    Crook, W.W. (1977): The Clear Creek pegmatite: a rare earth pegmatite in Burnett County, Texas. Mineralogical Record, 8 (2):88-90.
      • Llano Co.
        • Bluffton
    Am Min (1932) Volume 17, pages 381-390,
        • Kingsland Granite Company quarry (Petrick quarry)
    Self-collected by Franklin Roberts.
    Economic Geology; November 1964; v. 59; no. 7
    • Utah
      • Box Elder Co.
        • Wasatch Mts
    UGMS Bull 117 Minerals and Mineral Localities of Utah
    • Virginia
      • Amelia Co.
        • Amelia (Amelia Court House)
    AmMin 3:27-28 (1918)
    • Washington
      • Grant Co.
        • Grand Coulee Dam area
    Cannon, B. (1975): Minerals of Washington, p.39,62,88
    Mineral and/or Locality
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