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Yttrofluorite

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Formula:
(Ca1-xYx)F2+x where 0.05< x <0.3
Name:
Named for chemical composition.
A variety of Fluorite

Yttrofluorite is a variety of fluorite containing an appreciable amount of trivalent yttrium (Y) taking the place of divalent calcium (Ca) cations in the fluorite structure. Many early identifications of yttrofluorite are likely to be purple fluorite without appreciable yttrium. Yttrofluorite is not commonly purple.

Originally reported from Hundholmen, Tysfjord, Nordland, Norway. [Precise locality not mentioned in Vogt 1911, but first in Vogt 1923.]

See also yttrocerite.


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Classification of YttrofluoriteHide

Discredited
Approval History:
Discredited by IMA in 2006 (IMA 06–C) = a Y-enriched variety of fluorite, cf. Burke 2006.

Chemical Properties of YttrofluoriteHide

Formula:
(Ca1-xYx)F2+x where 0.05< x <0.3

First Recorded Occurrence of YttrofluoriteHide

Other Language Names for YttrofluoriteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Allanite-(Ce)19 photos of Yttrofluorite associated with Allanite-(Ce) on mindat.org.
Thalénite-(Y)11 photos of Yttrofluorite associated with Thalénite-(Y) on mindat.org.
Hundholmenite-(Y)8 photos of Yttrofluorite associated with Hundholmenite-(Y) on mindat.org.
Amazonite7 photos of Yttrofluorite associated with Amazonite on mindat.org.
Bastnäsite-(Ce)7 photos of Yttrofluorite associated with Bastnäsite-(Ce) on mindat.org.
Zinnwaldite6 photos of Yttrofluorite associated with Zinnwaldite on mindat.org.
Keiviite-(Y)5 photos of Yttrofluorite associated with Keiviite-(Y) on mindat.org.
Cleavelandite5 photos of Yttrofluorite associated with Cleavelandite on mindat.org.
Britholite-(Y)4 photos of Yttrofluorite associated with Britholite-(Y) on mindat.org.
Plumbomicrolite (of Hogarth 1977)4 photos of Yttrofluorite associated with Plumbomicrolite (of Hogarth 1977) on mindat.org.

Other InformationHide

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

References for YttrofluoriteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Vogt, T. (1911) Vorlaufige Mitteilung über Yttrofluorit, eine neue Mineralspezies aus dem nördlichen Norwegen. Centralblatt für Mineralogie, Geologie und Paläontologie: 373-377.
Vogt, T. (1923) Über die seltenen Erden im Yttrofluorit von Hundholmen. Centralblatt für Mineralogie, Geologie und Paläontologie: 673-676.
Sverdrup, T. L. (1968): Contributions to the Mineralogy of Norway No. 37. Yttrofluorite-yttrocerite-cerfluorite in norwegian pegmatites. Norsk Geologisk Tidsskrift. 48: 245-252
Burke, E.A.J. (2006) A mass discreditation of GQN minerals. The Canadian Mineralogist: 44(6): 1557-1560.

Internet Links for YttrofluoriteHide

Localities for YttrofluoriteHide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Argentina
 
  • Córdoba
    • Punilla Department
      • Tanti
Dina, H. (1993). Hentschelita en Cerro Blanco, Tanti, Córdoba. Informacion Tecnologica, 48(3-4), 277-282.
Canada
 
  • Newfoundland and Labrador
    • Newfoundland
      • St. Lawrence
Norman Wilson collection
  • Ontario
    • Algoma District
      • Elliot Lake area
        • Bouck Township
Robertson, J.A. (1976) The Blind River Uranium Deposits: the ores and their setting. (Ontario Division of Mines, Miscellaneous paper 65)
China
 
  • Jiangxi Province
    • Ganzhou Prefecture
      • Dayu Co.
Rucheng Wang, Fontan, F., Xiaoming Chen, Huan Hu, Changshi Liu, Shijin Xu, and de Parseval, P. (2003): Canadian Mineralogist 41, 727-748.
Egypt
 
  • Red Sea Governorate
    • Eastern Desert
Gehad M. Saleh (2007) Rare-Metal Pegmatites from the Southeastern Desert, Egypt: Geology, Geochemistry, and Petrogenesis. International Geology Review Vol. 49:824-843.
    • Northeastern Desert
Shalaby, M., Osman, A., Ali, M., Ahamed, F., & Ali, B. (2002). Radioactive Mineralization in Pegmatites, of Dara-Um Swassi, Area North Eastern Desert, Egypt. Bulletin of the Polish Academy of Sciences. Earth Sciences, 50(1), 51-66.
Japan
 
  • Honshu Island
    • Tohoku Region
      • Fukushima Prefecture
        • Kawamata
          • Iizaka Village (Iisaka)
Fluorite: The Collector's Choice. Extra Lapis English No. 9
Kazakhstan
 
  • Karagandy Province (Qaragandy Oblysy; Karaganda Oblast')
    • Betpakdala Desert (Bet-Pak-Dal Desert)
      • Kara-Oba W deposit
PM Kartashov specimen
Evseev, A. A. (1995) Kazaknstan and Middle Asia. A brief Mineralogical Guide. World of Stone 8:24-30
Kyrgyzstan
 
  • Talas Oblast
    • Ak-Tyuz ore Field
no reference
N. MALYUKOVA , (2014) Zoning of Polymetallic Rare-earth and Rare-metal Deposits in the Ak-Tyuz Ore Field (Northern Tien Shan, Kyrgyzstan). Acta Geologica Sinica (English Edition), 88(supp. 2): 451-453.
Mongolia
 
  • Uvs Aimag
    • Zavkhan Soum
http://web.archive.org/web/20050613081149/http://www.mram.mn/orduud-r.htm
Namibia
 
  • Erongo Region
    • Brandberg Area
      • Brandberg Complex
Orris, G.J., and Grauch, R.I. (2002): USGS Open-File Report 02-189.
    • Karibib District
      • Spitzkopje Area
Fluorite: The Collector's Choice. Extra Lapis English No. 9
    • Swakopmund District
      • Cape Cross area
http://www.mineral.tu-freiberg.de/econgeology/lehre/namibia/snlipegm/snlipegm_2_4.html
  • Karas Region
    • Karasburg District
Orris, G.J., and Grauch, R.I. (2002): USGS Open-File Report 02-189.
  • Otjozondjupa Region
    • Otjiwarongo District
Orris, G.J., and Grauch, R.I. (2002): USGS Open-File Report 02-189.
Norway
 
  • Aust-Agder
    • Iveland
      • Birkeland
Frigstad, O.F. (1968): En undersøkelse av cleavelandittsonerte pegmatittganger i Iveland-Evje, Nedre Setesdal. Hovedfagsoppgave (Thesis), University of Oslo
Müller, A., Kearsley, A., Spratt, J. and Seltmann, R. (2012): Petrogenetic implications of magmatic garnet in granitic pegmatites from Southern Norway. Canadian Mineralogist. 50,1095-1115
  • Nordland
    • Hamarøy
      • Finnøy
P.M. Kartashov data; Husdal, T. (2011): Tysfjordgranittens pegmatitter. Stein. 38 (4): 4-35
Neumann, H. (1985): Norges Mineraler. Norges Geologiske Undersøkelse Skrifter 68, 278 pp. (p. 50.
Husdal, T. (2008): The minerals of the pegmatites within the Tysfjord granite, northern Norway. Norsk Bergverksmuseum Skrift 38: 5-28
Husdal, T. (2008): The minerals of the pegmatites within the Tysfjord granite, northern Norway. Norsk Bergverksmuseum Skrift 38: 5-28
    • Tysfjord
      • Drag
        • Eivollen
Sverdrup, T. L. (1968): Contributions to the Mineralogy of Norway No. 37. Yttrofluorite-yttrocerite-cerfluorite in norwegian pegmatites. Norsk Geologisk Tidsskrift 48: 245-252
Sverdrup, T.L., Sæbø,P.Chr. & Bryn, K.Ö. (1965): Contribution to the Mineralogy of Norway No. 31. Tysonite (fluocerite), a new mineral for Norway. Norsk Geologisk Tidsskrift 45: 177-188
        • Lapplægeret
Husdal, T. (2008): The minerals of the pegmatites within the Tysfjord granite, northern Norway. Norsk Bergverksmuseum Skrift 38: 5-28
Vogt, T. (1911): Vorlaufige Mitteilung über Yttrofluorit, eine neue Mineralspezies aus dem nördlichen Norwegen. Centralblatt für Mineralogie, Geologie und Paläontologie, 373-377 ; Sverdrup, T. L. (1968): Contributions to the Mineralogy of Norway No. 37. Yttrofluorite-yttrocerite-cerfluorite in norwegian pegmatites. Norsk Geologisk Tidsskrift 48: 245-252
Folvik, H. O. (2009): Stetinditt- et nytt mineral fra Norge. Stein 36 (4): 34
  • Telemark
    • Drangedal
      • Tørdal
Sverdrup, T.L. (1968): Yttrofluorite-yttrocerite-cerfluorite in Norwegian pegmatites. Contributions to the mineralogy of Norway, No 37. Norsk Geologsk Tidskrift 48: 245-252
Russia
 
  • Eastern-Siberian Region
    • Transbaikalia (Zabaykalye)
      • Chitinskaya Oblast'
Seltmann, R., Soloviev, S., Shatov, V., Pirajno, F., Naumov, E., & Cherkasov, S. (2010). Metallogeny of Siberia: tectonic, geologic and metallogenic settings of selected significant deposits*. Australian Journal of Earth Sciences, 57(6), 655-706; Sharygin, V. V., & Vladykin, N. V. (2014). Mineralogy of cryolite rocks from the Katugin massif, Transbaikalia, Russia. Abstract Book of 30th International Conference on “Ore Potential of Alkaline, Kimberlite and Carbonatite Magmatism,” Antalya, Turkey, 166-168.
    • Tuva Republic
USGS Open File Report 2005-1252 p175
  • Northern Region
    • Murmanskaya Oblast'
      • Keivy Mountains
        • Western Keivy Massif
Voloshin A.V., Pakhomovskii Ya.A. [Волошин А. В., Пахомовский Я. А.] (1986): Minerals and evolution of mineral formation in amazonite pegmatites of the Kola Peninsula [Минералы и эволюция минералообразования в амазонитовых пегматитах Кольского полуострова]. Nauka, Leningrad, 168 pp. (in Russian); Pekov I.V., Chukanov N.V., Kononkova N.N., Yakubovich O.V., Massa W., Voloshin A.V. [Пеков И.В., Чуканов Н.В., Кононкова Н.Н., Якубович О.В., Масса В., Волошин А.В.] (2008): Tveitite-(Y) and rare-earth enriched fluorite from amazonite pegmatites of Western Keivy, Kola Peninsula, Russia. Genetic crystal-chemistry of natural Ca,REE-fluorides [Твейтит-(Y) и редкоземельные разновидности флюорита из амазонитовых пегматитов Западных Кейв, Кольский полуостров, Россия. Генетическая кристаллохимия природных Ca,REE-фторидов]. Zap. RMO [Зап. РМО], 137, 3, 76-93 (in Russian).
          • West Keivy Block
Pekov, I.V., Chukanov, N.V., Kononkova, N.N., Yakubovich, O.V., Massa, W., Voloshin, A.V. (2008): Tveitite-(Y) and rare-earth enriched fluorite from amazonite pegmatites of Western Keivy, Kola Peninsula, Russia. Genetic crystal-chemistry of natural Ca,REE-fluorides. Zapiski RMO (Proceedings of the Russian Mineralogical Society), 137(3), 76-93.
Sweden
 
  • Södermanland
    • Nynäshamn
      • Stora Vika
Jonsson, E. (1991): Om en yttriumhaltig fluorit från Stora Vika. Stuffen Varpen. (Medlemstidning för Stockholms Amatørgeologiska Sällskap). 1 (nr 1) p. 14-15.
Ukraine
 
  • Zhytomyr Oblast' (Zhitomir Oblast')
Pavel M. Kartashov data
USA
 
  • Colorado
    • Boulder Co.
      • Jamestown District
        • Jamestown
Pavel M. Kartashov analytical data (2011), Philip Persson material
    • Douglas Co.
      • Devils Head Pegmatite District
Minerals of Colorado (1997) Eckels, E. B.
    • El Paso Co.
      • Cheyenne District (St. Peters Dome District)
Minerals of Colorado (1997) Eckels, E. B.
Hanson, S.L. and Zito, G. (2013) Mineralogy of Miarolitic Pegmatites in the Stove Mountain Area, Colorado. The 40th Rochester Mineralogical Symposium, Contributed Papers in Specimen Mineralogy, 14-15.
    • Jefferson Co.
      • Clear Creek Pegmatite Province
Minerals of Colorado (1997) Eckels, E. B.
      • South Platte Pegmatite District
Rare-Earth Pegmatites of the South Platte District, Colorado CGS Res Ser 11
Mineralogical Record: 21: 429.; Simmons W B, Hanson S H, Falster A U (2006) Samarskite-(Yb): a new species of the samarskite group from the Little Patsy pegmatite, Jefferson County, Colorado, The Canadian Mineralogist 44, 1119-1125
Rare-Earth Pegmatites of the South Platte District, Colorado CGS Res Ser 11
Minerals of Colorado (1997) E.B. Eckels
Rare-Earth Pegmatites of the South Platte District, Colorado CGS Res Ser 11; Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 29 (Table A-1).
    • Park Co.
Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 31 (Table A-1).
    • Teller Co.
Minerals of Colorado (1997) E.B. Eckels
  • Michigan
    • Marquette Co.
      • Republic
http://www.museum.mtu.edu//news/Mineralogy%20of%20Michigan%20Update%20April%202013.pdf by Robinson, G.W. and Carlson, S.M.
  • New Mexico
    • Rio Arriba Co.
      • Petaca District
        • South Petaca
Minerals of New Mexico 2nd ed.
  • North Carolina
    • Yancey Co.
      • Spruce Pine District
        • Burnsville
          • Hurricane Mountain
Miller, J.W. and Allen, C.W. \
  • Texas
    • Burnet Co.
Crook, Wilson W. III (1977) Texasite, a new mineral: the first example of a differentiated rare-earth species. American Mineralogist: 62: 1006-1008.
    • Hudspeth Co.
Am. Min. 74:865-869 (1989)
O'Neill, L. C. (2014). REE-Be-UF mineralization of the Round Top laccolith, Sierra Blanca Peaks, Trans-Pecos Texas (MS dissertation).
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