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Fergusonite-(Y)

Big Photo

Mt Malosa, Zomba District, Malawi
© Elmar Lackner

Show Fergusonite-(Y) Photos (65)
Formula:
YNbO
 
4
System:TetragonalColour:Grey, yellow, brown
Hardness:5½ - 6½
Name:After Robert Ferguson (1767-1840), Scottish landowner, politician and mineral collector.
This page provides mineralogical data about Fergusonite-(Y).

Classification of Fergusonite-(Y)

IMA status:Approved
Strunz 8th edition ID:4/D.24-40
Nickel-Strunz 10th (pending) edition ID:7.GA.05

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
G : Molybdates, Wolframates and Niobates
A : Without additional anions or H2O
Dana 8th edition ID:8.1.1.1

8 : MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
1 : ABO4
Hey's CIM Ref.:18.2.1

18 : Niobates and Tantalates
2 : Niobates and tantalates containing rare earths but not U
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Type Occurrence of Fergusonite-(Y)

Type Locality:Qeqertaussaq Island, Atammik, Nuuk (Godthåb), Kitaa (West Greenland) Province, Greenland

Occurrences of Fergusonite-(Y)

Geological Setting:Rare earth bearing pegmatites, placer deposits.

Physical Properties of Fergusonite-(Y)

Lustre:Vitreous, Sub-Metallic, Dull
Diaphaneity (Transparency):Opaque
Colour:Grey, yellow, brown
Comment:Brownish black when altered, brown in transmitted light.
Streak:Brown, yellow brown, greenish gray
Hardness (Mohs):5½ - 6½
Tenacity:Brittle
Cleavage:Poor/Indistinct
Poor on {111}
Fracture:Sub-Conchoidal
Density (measured):5.6 - 5.8 g/cm3
Density (calculated):5.65 g/cm3

Crystallography of Fergusonite-(Y)

Crystal System:Tetragonal
Class (H-M):4/m - Dipyramidal
Space Group:I41/a
Cell Parameters:a = 5.15Å, c = 10.089Å
Ratio:a:c = 1 : 1.959
Unit Cell Volume:V 267.59 ų (Calculated from Unit Cell)
Z:4
Morphology:Prismatic to acicular dipyramidal crystals to 20cm.
Comment:Commonly metamict

Optical Data of Fergusonite-(Y)

Type:Isotropic
RI values: n = 2.05 - 2.19
Maximum Birefringence:δ = 0.000 - Isotropic minerals have no birefringence
Surface Relief:Very High
Comments:Rarely uniaxial

Chemical Properties of Fergusonite-(Y)

Formula:
YNbO
 
4
Essential elements:Nb, O, Y
All elements listed in formula:Nb, O, Y

Relationship of Fergusonite-(Y) to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
7.GA.05Fergusonite-(Ce)
(Ce,La,Nd)NbO
 
4
7.GA.05Fergusonite-(Nd)
(Nd,Ce)(Nb,Ti)O
 
4
7.GA.05Powellite
Ca[MoO
 
4
]
7.GA.05Scheelite
Ca[WO
 
4
]
7.GA.05Stolzite
Pb[WO
 
4
]
7.GA.05Wulfenite
Pb[MoO
 
4
]
7.GA.10Formanite-(Y)
YTaO
 
4
7.GA.10Iwashiroite-(Y)
Y(Ta,Nb)O
 
4
7.GA.15Paraniite-(Y)
Ca
 
2
Y(AsO
 
4
)(WO
 
4
)
 
2
Related Minerals - Hey's Index Grouping:

- +
18.2.2β-Fergusonite-(Y)
YNbO
 
4
18.2.3Fergusonite-(Ce)
(Ce,La,Nd)NbO
 
4
18.2.4β-Fergusonite-(Ce)
(Ce,La,Nd)NbO
 
4
18.2.5Fergusonite-(Nd)
(Nd,Ce)(Nb,Ti)O
 
4
18.2.6β-Fergusonite-(Nd)
(Nd,Ce)NbO
 
4
18.2.7Formanite-(Y)
YTaO
 
4
18.2.8Pyrochlore
(Ca,Na)
 
2
Nb
 
2
O
 
6
(OH,F)
18.2.9Ceriopyrochlore-(Ce)
(Ce,Ca,Y)
 
2
(Nb,Ta)
 
2
O
 
6
(OH,F)
18.2.10Strontiopyrochlore
(Sr,Ce,Ca)
 
2-x
(Nb,Fe)
 
2
(O,OH)
 
7
18.2.11Loparite-(Ce)
(Na,Ce,Ca,Sr,Th)(Ti,Nb,Fe)O
 
3
18.2.12Fersmite
(Ca,Ce,Na)(Nb,Ta,Ti)
 
2
(O,OH,F)
 
6
18.2.13Aeschynite-(Ce)
(Ce,Ca,Fe,Th)(Ti,Nb)
 
2
(O,OH)
 
6
18.2.14Aeschynite-(Nd)
(Nd,Ce,Ca)(Ti,Nb)
 
2
(O,OH)
 
6
18.2.15Aeschynite-(Y)
(Y,Ca,Fe,Th)(Ti,Nb)
 
2
(O,OH)
 
6
18.2.16Nioboaeschynite-(Ce)
(Ce,Ca,Th)(Nb,Ti)
 
2
(O,OH)
 
6
18.2.17Nioboaeschynite-(Nd)
(Nd,Ce,Ca,Th)(Nb,Ti,Fe,Ta)
 
2
(O,OH)
 
6
18.2.18Tantalaeschynite-(Y)
(Y,Ce,Ca)(Ta,Ti,Nb)
 
2
O
 
6
18.2.19Vigezzite
(Ca,Ce)(Nb,Ti)
 
2
O
 
6
18.2.20Murataite-(Y)
(Y,Na)
 
6
Zn(Zn,Fe
3+
 
)
 
4
(Ti,Nb,Na)
 
12
O
 
29
(O,F,OH)
 
10
F
 
4

Other Names for Fergusonite-(Y)

Synonyms:
α-Fergusonite
Other Languages:
German:α-Fergusonit
β-Fergusonit-(Y)
Fergusonit-(Y)
Japanese:フェルグソン石
Russian:Фергусонит-(Y)
Spanish:α-Fergusonita
Varieties:
Risörite

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.

References for Fergusonite-(Y)

Reference List:Soviet Physics – Crystallography: 26(1): 35-37.

Internet Links for Fergusonite-(Y)

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Fergusonite-(Y) in the Natural History Museum (London) online catalogue
  • Fergusonite-(Y) details from Handbook of Mineralogy (PDF)
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    Localities for Fergusonite-(Y)

    Hide Locality List
    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.
    Australia
     
    • South Australia
      • Flinders Ranges
        • North Flinders Ranges
          • Mt Babbage area (Inlier)
    		P.-A. Wulser unpublished data
    Austria
     
    • Salzburg
      • Hohe Tauern Mts
        • Obersulzbach valley
          • Hopffeld area
    		R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
    • Tyrol
      • North Tyrol
        • Ziller valley
          • Zamser Grund (Zams valley)
            • Schrammacher Mt.
    		Folie, K., Rocchetti, I. (1999): Novità Mineralogiche del Passo di Vizze. Rivista Mineralogica Italiana, 4/1999, 222-230.
    M. Moro collection
    Burma (Myanmar)
     
    • Mandalay Division
      • Sagaing District
        • Mogok
          • Kyauk-Pyat-Thet
    		Pavel M. Kartashov analytical data, Sieghard Ellenberger specimens
    Canada
     
    • Northwest Territories
    • Ontario
      • Haliburton Co.
        • Cardiff Township
    		No reference listed
      • Nipissing District
        • Murchison Township
          • Madawaska
    		Dana's New Mineralogy
    • Québec
      • Gatineau Co.
        • Wakefield Township
          • St-Pierre-de-Wakefield
    		Hilderley, M., Ercit, T.S., Rowe, R.A. (2006) 33rd Rochester Mineralogical Symposium, abstracts, 13-14.
      • Papineau Co.
        • Portland Township
          • St-Pierre-de-Wakefield
    		No reference listed
    China
     
    • Guangxi Zhuang Autonomous Region
      • Liuzhou Prefecture
        • Rong'an Co.
    		Zhiwei Bao and Zhenhua Zhao (2008): Ore Geology Reviews 33, 519-535.
    • Hunan Province
      • Yongzhou Prefecture
        • Jianghua Co.
    		Zhiwei Bao and Zhenhua Zhao (2008): Ore Geology Reviews 33, 519-535.
    • Inner Mongolia Autonomous Region
      • Baotou League
        • Darhan Muminggan United Banner
          • Bayan Obo
    		http://www.smartminerals.com/cina2004/art_China_localities.htm
    • 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.
    • Liaoning Province (Manchuria; Dongbei Region)
    		Pavel M. Kartashov data
    • Sichuan Province
      • Liangshan Autonomous Prefecture
        • Huili Co.
    		Zhang Peishan, Yang Zhuming, Tao Kejie, and Yang Xueming (1996): \"Mineralogy and Geology of Rare Earths in China\", Science Press (Beijing), 226 pp.
    Czech Republic
     
    • Moravia (Mähren; Maehren)
      • Vysočina Region
        • Třebíč
    		Škoda, R., Novák, M., Houzar, S.: Granitické NYF pegmatity třebíčského plutonu. Acta Musei Moraviae, Scientiae geologicae, 2006, roč. 91, s. 129 - 176.
    Germany
     
    • Rhineland-Palatinate
      • Eifel Mts
        • Laach lake volcanic complex
          • Kruft
    		Blass, G.; Graf, H.W., Neufunde von bekannten Fundorten (IX), Mineralien-Welt 5/1,18, 1994
          • Mendig
            • Niedermendig
    		Blass, G.; Graf, H.W., Neufunde von bekannten Fundorten (IX), Mineralien-Welt 5/1,18, 1994
    Blass, G.; Graf, H.W., Neufunde von bekannten Fundorten (IX), Mineralien-Welt 5/1,18, 1994
              • Wingertsberg Mt.
    		Blass, G.; Graf, H.W., Neufunde von bekannten Fundorten (IX), Mineralien-Welt 5/1,18, 1994
        • Mayen
          • Ettringen
            • Bellerberg volcano
              • Ettringer Bellerberg Mt. (Bellberg Mt.; Bellenberg Mt.; Billenberg Mt.; Boilenberg Mt.)
    		Blass, G., Graf, H.W., Kolitsch, U., Sebold, D., Neue Funde aus der Vulkaneifel , Mineralien-Welt 15/3, 58-69, 2004
    Greenland
     
    • Kitaa (West Greenland) Province
      • Nuuk (Godthåb)
        • Atammik
    		AmMin 46 (1961), 1516
    Italy
     
    • Aosta Valley
      • Courmayeur
        • Les Grandes Jorasses Massif
          • Ferret Valley
    		Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007): MInerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" Alba, Ed., Alba (Cuneo) 607 pp.
    • Piedmont
      • Torino Province
        • Luserna San Giovanni
    		- Finello, G., Ambrino, P., Kolitsch, U., Ciriotti, M.E., Blaß, G., Bracco, R. (2007): I minerali della “Pietra di Luserna”, Piemonte, Italia nord-occidentale. I. Alcune cave di gneiss della Val Luserna. Micro (località), 2/2007, 181-226.
      • Verbano-Cusio-Ossola Province
        • Ossola Valley
          • Beura-Cardezza
    		Preite, D., Mattioli, V., Cini, V., Besana, G. (1997): Die mineralien von Beura und Villadossola (NO), Oberitalien. Lapis, 5/1997, 13-26.
          • Vigezzo Valley
            • Craveggia
    		Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007): Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" Alba, Ed., Alba (Cuneo) 607 pp.
            • Trontano
    		Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007): MInerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" Alba, Ed., Alba (Cuneo) 607 pp.
    Japan
     
    • Honshu Island
      • Kinki Region
        • Shiga Prefecture
          • Otsu City
    		Nakatsugawa Mineral Museum (Gifu Prefecture, Japan)
      • Tohoku Region
        • Fukushima Prefecture
          • Kawamata
    		National Science Museum specimens (Tokyo); Am. Min. 69:196-199
            • Iizaka (Iisaka) Village
    		Alfredo Petrov specimen, from Kotaro Watanabe.
    Madagascar
     
    • Antananarivo Province
      • Analamanga Region
        • Ankazobe Pegmatite Field
          • Anjozorobe District
    		Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871
      • Itasy Region
        • Soavinandriana District
          • Mahavelona Commune
    		[www.johnbetts-fineminerals.com]
      • Vakinankaratra Region (Betafo - Antsirabé region)
        • Betafo District
          • Manapa pegmatite Field
    		Rob Lavinsky specimen
    Malawi
     
    • Zomba District
    		Cairncross, B., Messner, K & Farquharson, E. (1999): Die Pegmatite des Mount Malosa bei Zomba, Malawi. LAPIS 24 (4), 22-32
    Mexico
     
    • Chihuahua
      • Mun. de Aldama
        • Puerto del Aire
    		Panczner (1987): 191.
    • Oaxaca
      • Mun. de la San Francisco Telixtlahuaca
        • San Francisco Telixtlahuaca
    		Panczner (1987): 88-357.
    Mongolia
     
    • Hovd Aimag (Khovd Aimag)
      • Altai Mts
    		P.M. Kartashov data
          • Mount Ulyn Khuren
    		Can Min 40:1641-1648
    P.M. Kartashov data
    Kartashov P.M., Voloshin A.V., PakhomovskiiYa.A. On the zonal crystaline gadolinite from the alkaline granite pegmatites of Haldzan Buragtag (Mongolian Altai), - Zapiski VMO, 1993,N3,p. 65-79.
    Pavel M. Kartashov data; Econ Geol (1995) 90:530-547
    North Korea
     
    • Kangwon Province
      • Pyonggang-gun
    		Pavel M. Kartashov data
    Norway
     
    • Aust-Agder
      • Arendal
        • Flostadøya
    		Forbes & Dahll (1855, p. 227); Neumann (1985, p. 83).
        • Tromøy
    		Forbes & Dahll (1855, p. 227); Neumann (1985, p. 83).
    Forbes & Dahll (1855, p. 227); Neumann (1985, p. 83).
    Brøgger, W.C. (1906): Die Mineralien der südnorwegischen granitpegmatitgänge. I. Niobate, tantalate, titantate und titanoniobate. Videnskabs-Selskabets Skrifter. Math.-Naturv. Klasse 1906. No. 6
      • Evje og Hornnes
    		Schei (1905, pp. 139-140); Oftedal (1961b, p. 137); Neumann (1985, p. 83).
        • Landsverk
    		Brøgger, W.C. (1906): Die Mineralien der südnorwegischen granitpegmatitgänge. I. Niobate, tantalate, titantate und titanoniobate. Videnskabs-Selskabets Skrifter. Math.-Naturv. Klasse 1906. No. 6
      • Froland
    		Nilssen, B. (1970): Samarskites. Chemical composition, formula and crystalline phases produced by heating. Norsk Geologisk Tidsskrift 50, 357-373
        • Mykland
    		Brøgger, W.C. (1906): Die Mineralien der südnorwegischen granitpegmatitgänge. I. Niobate, tantalate, titantate und titanoniobate. Videnskabs-Selskabets Skrifter. Math.-Naturv. Klasse 1906. No. 6
      • Gjerstad
    		[var: Risörite] Hauser (1908); Barth (1927c); Neumann (1985, p. 83).
    Bjørlykke, H. (1937): Mineral parageneses of some granite pegmatites near Kragerø, Southern Norway. Norsk Geologisk Tidsskrift 17, 1-16; Neumann (1985, p. 83).
      • Iveland
    		Pavel M. Kartashov data
        • Frikstad (Frigstad)
    		Revheim, O. (2006): Slobrekka, Iveland. [Del 2]. STEIN 34 (1), 3-5
    Nilssen, B. (1971): Yttrialite from Ivedal, Iveland, South Norway. Nosk Geologisk Tidsskrift 51, 1-8
      • Risør
    		Brøgger 1906, p. 16, Neumann 1985, p. 7.
    Butler & Hall (1960); Neumann (1985, p. 83).
        • Søndeled
    		Brøgger, W.C. (1906): Die Mineralien der südnorwegischen granitpegmatitgänge. I. Niobate, tantalate, titantate und titanoniobate. Videnskabs-Selskabets Skrifter. Math.-Naturv. Klasse 1906. No. 6
      • Tvedestrand
    		Forbes & Dahll (1855, p. 227); Neumann (1985, p. 83).
    • Buskerud
      • Øvre Eiker
        • Gunhildrud
    		Jahren, J.; Berg, H.J.; Hurum, J.H. & Wulff-Pedersen, E. (1998): Nye undersøkelser av amazonitt-genthelvin pegmatitten fra Fiskum, Øvre Eiker. Bergverksmuseets Skrift 14, 13-16
    • Finnmark
      • Alta
    		Barth (1927, pp. 38 ff); Neumann (1985, p. 83).
    • Nordland
      • Sørfold
    		Ellingsen, H.V., Haugen, A., Raade, G., Eldjarn, K. & Berg, H.-J., (1995): Sjeldne mineraler i en amazonittpegmatitt ved Tennvatn i Nordland. Norsk Bergverksmuseums Skriftserie 9, 35-37
      • Tysfjord
    		Vogt (1911, pp. 373-374); Neumann (1985, p. 83).
    Husdal, T. (2008): The minerals of the pegmatites within the Tysfjord granite, northern Norway. Norsk Bergverksmuseum, skrift 38, 5-28.
    • Østfold
      • Moss
        • Dillingøya (Dillingö)
    		Brøgger, W.C. (1906): Die Mineralien der südnorwegischen granitpegmatitgänge. I. Niobate, tantalate, titantate und titanoniobate. Videnskabs-Selskabets Skrifter. Math.-Naturv. Klasse 1906. No. 6
    Brøgger, W.C. (1906): Die Mineralien der südnorwegischen granitpegmatitgänge. I. Niobate, tantalate, titantate und titanoniobate. Videnskabs-Selskabets Skrifter. Math.-Naturv. Klasse 1906. No. 6
    Harald Bjørlykke (1939): Feltspat V. De sjeldne mineraler på de norske granittiske pegmatittganger, NGU Nr. 154
    Brøgger, W.C. (1906): Die Mineralien der südnorwegischen granitpegmatitgänge. I. Niobate, tantalate, titantate und titanoniobate. Videnskabs-Selskabets Skrifter. Math.-Naturv. Klasse 1906. No. 6
      • Råde
    		Brøgger, W.C. (1906): Die Mineralien der südnorwegischen granitpegmatitgänge. I. Niobate, tantalate, titantate und titanoniobate. Videnskabs-Selskabets Skrifter. Math.-Naturv. Klasse 1906. No. 6
    Oftedal (1962b, p. 137);Brøgger, W.C. (1906): Die Mineralien der südnorwegischen granitpegmatitgänge. I. Niobate, tantalate, titantate und titanoniobate. Videnskabs-Selskabets Skrifter. Math.-Naturv. Klasse 1906. No. 6
    Brøgger, W.C. (1906): Die Mineralien der südnorwegischen granitpegmatitgänge. I. Niobate, tantalate, titantate und titanoniobate. Videnskabs-Selskabets Skrifter. Math.-Naturv. Klasse 1906. No. 6
    • Telemark
      • Drangedal
        • Tørdal
    		Raade et al(1993): Kuliokite-(Y) and its alteration products kainosite-(Y) and kamphaugite-(Y) from granite pegmatite in Tørdal, Norway, European Journal of Mineralogy: 5: 691-698.
      • Nome
    		Åmli (1974, p. 39); Neumann (1985, p. 83).
      • Porsgrunn
        • Bjørkedalen
    		Engvoldsen,T.,Andersen, F.,Berge, S.A. & Burvald, I. (1991): Pegmatittmineraler fra Larvik ringkompleks. STEIN 18(1),15-71
    Poland
     
    • Lower Silesia (Dolnośląskie)
      • Karkonosze Massif
        • Karkonosze Mts
          • Szklarska Poręba District
    		Pieczka A., Gołębiowska B. 2002: Pegmatites of the Szklarska Poręba Huta granite quarry: preliminary data on REE-mineralization. Mineralogia Polonica, vol. 20, 175-177
      • Strzegom-Sobótka Massif
        • Jawor District
    		SZEŁĘG E., CIURLA A., 2004: Preliminary data on Nb-Ta oxides in pegmatites
    Portugal
     
    • Azores District
      • San Miguel Island
    		Ternes, B., Mineralien von der Azoreninsel Sao Miguel, Lapis, 20-42, 1999
    Ternes, B. (1999): Mineralien von der Azoreninsel Sao Miguel (Portugal). Lapis, 24 (1), 20-42
    Russia
     
    • Eastern-Siberian Region
      • Transbaikalia (Zabaykalye)
        • Buriatia (Buryatia) Republic
    		Savel’eva, V.B., and Karmanov, N.S. (2008): Geology of Ore Deposits 50(8), 681-696.
      • Tuva Republic
        • 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.)
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
    		www.koeln.netsurf.de/~w.steffens/khib.htm
    Pavel M. Kartashov data
    A.V. Voloshin, Ya.A. Pakhomovskii Minerals and mineralformation evolution in amazonite pegmatites of Kola peninsula, - Leningrad, Nauka, 1986, pp.168.
    Pavel M. Kartashov data
    Pavel M. Kartashov data
        • Northern Karelia
    		Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    • Southern Siberia
      • Sayan Mts
        • Eastern Sayan
    		Savel\'eva V.B. Karmanov N.S. (2008) Rare earth\'s minerals of alkaline metasomatites of Main Sayan Fault zone, - Zapiski RMO, N2, pp.14-35 (in Rus.).
    • Urals Region
      • Southern Urals
        • Chelyabinsk Oblast'
          • Ilmen Mts
            • Ilmen Natural Reserve
    		Dana 7:I:761.
              • Lake Ishkul'
    		Am. Min. 90:1402-1412 (2005)
    P.M. Kartashov data
    • Western-Siberian Region
      • Polar Urals
        • Nenetskiy Autonomous Okrug
          • Labytnangi
    		Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    Saudi Arabia
     
    • Mintaqah Tabuk
      • Midyan
    		Küster, D. (2009): Ore Geology Reviews 35, 68-86.
    Slovakia
     
    • Košice Region
      • Eastern Slovenské Rudohorie Mts
    		Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k
    South Africa
     
    • Gauteng Province
    • Northern Cape Province
      • Namaqualand
    		Minerals of South Africa
    Minerals of South Africa
    Minerals of South Africa
    South Korea
     
    • Chungcheongbukdo (Chungchong-pukto)
      • Chungju (Chung Won Kum; Chung-ju)
        • Joongwon-gun
          • Mt. Eorae
    		P.M. Kartashov data
    Sweden
     
    • Dalarna
      • Gagnef
        • Mockfjärd
      • Säter
        • Gustavs
    		No reference listed
    • Jämtland
      • Bräcke
    		Kjellman et al. 1999, Can. Min. vol.37, 832-3.
      • Krokom
    		No reference listed
    • Lappland
      • Jokkmokk
    No reference listed
        • Varjisträsk
    • Småland
      • Vetlanda
        • Alseda
    		Swedish Nat.Musuem
          • Slättåkra
    		Swedish Nat.Musuem
    • Södermanland
      • Nynäshamn
    		Gustafsson, Lars & Otter, Bertil (1991): Mineralförekomster i Stockholmstrakten.Del 2. STEIN 18(4),4-12
    • Uppland
      • Norrtälje
        • Väddö
    		Wilke, H.-J. (1997): Die Mineralien und Fundstellen von Schweden. Chr. Weise Verlag, München, 200 pp. (in German)
    Wilke, H.-J. (1997): Die Mineralien und Fundstellen von Schweden. Chr. Weise Verlag, München, 200 pp. (in German)
      • Vaxholm
        • Resarö
    		Riksmuseet Stockholm specimen
    • Värmland
      • Filipstad
    		No reference listed
    Switzerland
     
    • Wallis (Valais)
      • Binn Valley
        • Kriegalp Valley (Chriegalp Valley)
    		M. Praeger and M. Crumbach: Lapis 29(7/8):59-64; 86 (2004)
      • Hérens Valley
        • Thyon
    		Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 161.
    UK
     
    • Scotland
      • North West Highlands (Inverness-shire)
        • Isle of Skye
          • Luib
    		S Rust collection
    USA
     
    • Colorado
      • Douglas Co.
    		"Minerals of Colorado, updated & revised", p. 13, by Eckel, Edwin B., 1997
      • El Paso Co.
    		"Minerals of Colorado, updated & revised", p. 14, by Eckel, Edwin B., 1997
      • Fremont Co.
    		"Minerals of Colorado, updated & revised", p. 16, by Eckel, Edwin B., 1997
      • Jefferson Co.
        • Clear Creek pegmatite Province
    		Minerals of Colorado (1997) Eckels, E. B.
        • South Platte Pegmatite District
    		Minerals of Colorado (1997) Eckel, E. B.
    Minerals of Colorado (1997) Eckels, E. B.
    Minerals of Colorado (1997) Eckel, E. B.
    Minerals of Colorado (1997) E.B. Eckels
    Minerals of Colorado (1997) Eckels, E. B.
      • Teller Co.
    		Minerals of Colorado (1997) E.B. Eckels
    • Idaho
      • Boise Co.
    		Ream, Lanny R. 2004. Idaho Minerals, 2nd edition, Revised and Updated
    • Maine
      • Sagadahoc Co.
        • Topsham
    		King & Foord, 1994. Mineralogy of Maine, V. 1.; King and Foord, 2000, Addenda to Volume 1, Mineralogy of Maine, v. 2.
    • Massachusetts
      • Essex Co.
    		www.handbookofmineralogy.org/pdfs/fergusonitey.pdf
    • Nevada
      • Pershing Co.
        • Antelope District
    		NBMG Spec. Pub. 31 Minerals of Nevada
    • North Carolina
      • Burke Co.
    		Jan H.Bernard and Jaroslav Hyrsl,2004,Minerals and their Localities,pg 211
      • Mitchell Co.
    		rruff.geo.arizona.edu/doclib/horn/fergusonitey.pdf
    • Texas
      • Llano Co.
        • Bluffton
    		American Mineralogist (1925): 10: 77
        • Kingsland Granite Company quarry (Petrick quarry)
    		Arthur Smith, Frank Roberts, Denise Bicknell (2008) Mineral News, 24, #1, 6-7.
    • Wisconsin
      • Marathon Co.
    		Hanson, S.L., et al (1999) Rocks and Minerals, 74, 184
    Mineral and/or Locality
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