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Hercynite

Big Photo

Laach lake volcanic complex, Eifel Mts, Rhineland-Palatinate, Germany
© Stephan Wolfsried

Show Hercynite Photos (16)
Formula:
FeAl
 
2
O
 
4
System:IsometricColour:Dark blue-green, yellow, ...
Hardness:7½
Name:From the Latin name for the Bohemian Forest, Silva Hercynia, where the species was first found.


Spinel Group, Al series. Chromite-Hercynite Series. Gahnite-Hercynite Series, the Spinel-Hercynite Series.

Classification of Hercynite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:4/B.01-20
Nickel-Strunz 10th (pending) edition ID:4.BB.05

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
B : Metal: Oxygen = 3:4 and similar
B : With only medium-sized cations
Dana 8th edition ID:7.2.1.3

7 : MULTIPLE OXIDES
2 : AB2X4
Hey's CIM Ref.:7.20.14

7 : Oxides and Hydroxides
20 : Oxides of Fe
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Type Occurrence of Hercynite

Type Locality:Poběžovice (Ronsperg), Plzeň Region, Bohemia (Böhmen; Boehmen), Czech Republic
Year of Discovery:1847

Physical Properties of Hercynite

Lustre:Vitreous
Diaphaneity (Transparency):Translucent
Colour:Dark blue-green, yellow, brown
Streak:Dark greyish green to dark green
Hardness (Mohs):7½
Tenacity:Brittle
Fracture:Conchoidal
Density (calculated):4.39 g/cm3

Crystallography of Hercynite

Crystal System:Isometric
Class (H-M):m3m (4/m 3 2/m) - Hexoctahedral
Space Group:Fd3m (F41/d 3 2/m)
Cell Parameters:a = 8.119Å
Unit Cell Volume:V 535.19 ų (Calculated from Unit Cell)
Morphology:Crystals usually octahedral.
Twinning:Common on {111}, (spinel law).

Optical Data of Hercynite

Type:Isotropic

Chemical Properties of Hercynite

Formula:
FeAl
 
2
O
 
4
Essential elements:Al, Fe, O
All elements listed in formula:Al, Fe, O

Relationship of Hercynite to other Species

Series:Forms a series with Spinel (see here)
Forms a series with Gahnite (see here)
Forms a series with Chromite (see here)
Related Minerals - Nickel-Strunz Grouping):
4.BB.05Brunogeierite
(Ge,Fe)Fe
 
2
O
 
4
4.BB.05Chromite
FeCr
 
2
O
 
4
4.BB.05Cochromite
(Co,Ni,Fe)(Cr,Al)
 
2
O
 
4
4.BB.05Coulsonite
FeV
 
2
O
 
4
4.BB.05Cuprospinel
Cu
2+
 
Fe
3+
2
O
 
4
4.BB.05Filipstadite
(Mn,Mg)
 
2
(Sb
 
.5
Fe
 
.5
)O
 
4
4.BB.05Franklinite
Zn
2+
 
Fe
3+
2
O
 
4
4.BB.05Gahnite
ZnAl
 
2
O
 
4
4.BB.05Galaxite
(Mn,Fe,Mg)(Al,Fe)
 
2
O
 
4
4.BB.05Jacobsite
Mn
2+
 
Fe
3+
2
O
 
4
4.BB.05Manganochromite
(Mn,Fe)(Cr,V)
 
2
O
 
4
4.BB.05Magnesiocoulsonite
MgV
 
2
O
 
4
4.BB.05Magnesiochromite
MgCr
 
2
O
 
4
4.BB.05Magnesioferrite
MgFe
3+
2
O
 
4
4.BB.05Magnetite
Fe
2+
 
Fe
3+
2
O
 
4
4.BB.05Nichromite
(Ni,Co,Fe)(Cr,Fe,Al)
 
2
O
 
4
4.BB.05Qandilite
(Mg,Fe)
 
2
(Ti,Fe,Al)O
 
4
4.BB.05Spinel
MgAl
 
2
O
 
4
4.BB.05Trevorite
Ni
2+
 
Fe
3+
2
O
 
4
4.BB.05Ulvöspinel
Fe
 
2
TiO
 
4
4.BB.05Vuorelainenite
(Mn,Fe)(V,Cr)
 
2
O
 
4
4.BB.05Zincochromite
ZnCr
 
2
O
 
4
4.BB.05Tegengrenite
(Mg,Mn
2+
 
)
 
2
Sb
5+
0.5
(Mn
3+
 
,Si,Ti)
 
0.5
O
 
4
4.BB.10Hausmannite
MnMn
 
2
O
 
4
4.BB.10Hetaerolite
ZnMn
 
2
O
 
4
4.BB.10Hydrohetaerolite
ZnMn
 
2
O
 
4
·H
 
2
O
4.BB.10Iwakiite
Mn(Fe,Mn)
 
2
O
 
4
4.BB.15Maghemite
Fe
 
2
O
 
3
4.BB.15Titanomaghemite
Fe
3+
 
(Fe
3+
 
,Ti
4+
 
,Fe
2+
 
,[])
 
2
O
 
4
Related Minerals - Hey's Index Grouping:
7.20.1Wüstite
FeO
7.20.2Magnetite
Fe
2+
 
Fe
3+
2
O
 
4
7.20.3Maghemite
Fe
 
2
O
 
3
7.20.4Hematite
Fe
 
2
O
 
3
7.20.5Goethite
α-Fe
3+
 
O(OH)
7.20.6Akaganeite
β-Fe
3+
 
O(OH,Cl)
7.20.7Feroxyhyte
Fe
3+
 
O(OH)
7.20.8Lepidocrocite
γ-Fe
3+
 
O(OH)
7.20.9Ferrihydrite
Fe
 
5
O
 
3
(OH)
 
9
7.20.10Amakinite
(Fe
2+
 
,Mg)(OH)
 
2
7.20.11Magnesioferrite
MgFe
3+
2
O
 
4
7.20.12Muskoxite
Mg
 
7
Fe
 
4
O
 
13
·10H
 
2
O
7.20.13Srebrodolskite
Ca
 
2
Fe
 
2
O
 
5
7.20.15Brownmillerite
Ca
 
2
(Al,Fe
3+
 
)
 
2
O
 
5

Other Names for Hercynite

Synonyms:
ChrysomelaneHercynite (of Zippe)Iron-magnesia Spinel (Synonym)Iron Spinel
German names:
Hercynit
Russian names:
Герцинит
Spanish names:
Hercynita
Varieties:
ChromohercyniteChrompicotiteCobaltochrompicotitePicotite

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 Hercynite

Reference List: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: 689-697.

Neues Jahrbuch für Mineralogie, Abhandlungen: 115: 120-122.

European Journal of Mineralogy: 6: 39-51.

Andreozzi, G.B. and Lucchesi, S. (2002) Intersite distribution of Fe 2+ and Mg in the spinel (sensu-stricto)-hercynite series by single-crystal X-ray diffraction. American Mineralogist: 87: 1113-1120.

Internet Links for Hercynite

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  • Raman and XRD data at RRUFF project
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    Localities for Hercynite

    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.
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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.
    Algeria
     
    • Algiers Province
    		C. Hejny et al. (2002) Eur. J. Mineral. 14, 957-967
    • Annaba Province
      • Cap de Fer
    		Eur. J. Mineral. , 1996, 8, pp. 625-638.
    • Skikda Province
      • Collo
        • Cape Bougaroun
    		Eur. J. Mineral. , 1996, 8, pp. 625-638.
    • Tamanghasset Province
      • Ahaggar Mts (Hoggar Mts)
        • In Ouzzal
    		[var: Picotite] M. Guiraud, J.R. Kienast, A. Rahmani : "Petrological study of high-temperature granulites from In Ouzal, Algeria : some implications on the phase relationships in the FMASTOCr system", Eur. J. Mineral. , 1996, 8, 1375-1390.
        • Laouni
    		[var: Picotite] J.P. Lorand and J.Y. Cottin, Bull. Minéral. , 1987, 110, pp. 373-378.
    [var: Picotite] C. Lemanski, Jr. (re-entry lost Mindat data).
    Antarctica
    [var: Picotite] AmMin 36:361-367
    [var: Picotite] AmMin 36:361-367
    • Eastern Antarctica
      • Enderby Land
    		Eur. J. Mineral. , 1991, 3, pp. 367-386.
      • Mac Robertson Land
    		Eur. J. Mineral. , 1991, 3, pp. 367-386.
      • Princess Elizabeth Land
        • Ingrid Christensen Coast
          • Prydz Bay
    		Eur. J. Mineral. , 1991, 3, pp. 367-386.
      • Wilkes Land
        • Queen Mary Coast
    		Eur. J. Mineral. , 1991, 3, pp. 367-386.
    Argentina
     
    • Córdoba
    		The Canadian Mineralogist, Vol. 42, pp. 155-168 (2004)
    Australia
     
    • New South Wales
      • Yancowinna Co.
    		Birch BH Book
    • Northern Territory
    Am Min 93:283-299
    • Queensland
    • Tasmania
    		Bottrill & Baker (in prep) Catalogue of minerals of Tasmania
    • Western Australia
    		MinMag 66(6):985-1002
    Austria
     
    • Carinthia
      • Lavant valley
        • St Paul
          • Kollnitz
    		[var: Picotite] J. E. Zirkl: Der Karinthin 43/44:175-188 (1961)
    • Lower Austria
    		R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
        • Meidling im Tal
    		[var: Picotite] Eur. J. Mineral. , 1991, 3, pp. 323-342.
      • St Pölten
    		[var: Picotite] R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
    • Salzburg
      • Hohe Tauern Mts
        • Habach Valley
          • Nasenkopf Mt.
            • Leckbachgraben (Leckbachrinne)
    		[var: Picotite] R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
      • Wolfgang Lake
    		[var: Picotite] A. Strasser: Die Minerale Salzburgs (1989)
    • Styria
      • Bad Gleichenberg
        • Kapfenstein
    		[var: Picotite] R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
    [var: Picotite] R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
        • Klause
    		[var: Picotite] Aufschluss 1972(SB), 52-55
      • Bad Radkersburg
        • Klöch
    		Taucher, J. et al. (1989); Taucher, J. & Hollerer, Ch.E. (1998)
    Brazil
     
    • Northeast Region
      • Pernambuco
        • São Pedro and São Paulo archipel
    		[var: Picotite] Washington, H.S. (1929) The American Mineralogist, 14, 369-372.
    Canada
     
    • Québec
      • Rouville Co.
        • Mont Saint-Hilaire
    		No reference listed
    Chile
     
    • Antofagasta Region
      • El Loa Province
        • San Pedro volcano
    		[var: Picotite] C. Lemanski, Jr. (re-entry of lost Mindat data).
    China
     
    • Shandong Province
      • Jiaodong Gold Province
        • Weihai Prefecture
          • Rongcheng Co.
    		[var: Picotite] Geological Society of America Abstracts with Programs, Vol. 35, N°6, Sept. 2003, p. 634.
    • Xinjiang (Xinjiang-Uygur) Autonomous Region
      • Yili Hasake (Ili Kazakh) Autonomous Prefecture
        • Tacheng (Tarbaghatay) Prefecture
          • Junggar basin
    		[var: Picotite] C. Lemanski, Jr. (re-entry lost Mindat data).
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Liberec Region
    		[var: Picotite] Scharm, B.: Přehled minerálů nalezených v oblasti uranových koncentrací v severočeské křídě. Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 1995, roč. 3, s. 169-172.
      • Plzeň Region
    		[AM 69 (1984), 937; Clark, 1993, "Hey's Mineral Index"]
      • South Bohemia Region
        • Tábor
          • Sepekov
    • Moravia (Mähren; Maehren)
      • Olomouc Region
        • Šumperk (Mährisch Schönberg)
          • Petrov nad Desnou (Petersdorf an der Tess)
    		[var: Chromohercynite] Zimák, J., Košuličová, M.: Chromem bohatý svor z Petrova nad Desnou. Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 2001, roč. 9, s. 282-285.
      • Vysočina Region
        • Chotěboř
    		Mísař, Z.: Metamorphism of Ultramafic Rocks by Nehodovka in the Železné hory Mts., Czechoslovakia. Acta Universitatis Carolinae, Geologica, 1969, č. 2, s. 133-151.
    Egypt
     
    • Red Sea
    		[var: Picotite] Eur. J. Mineral. , 1993, 5, pp. 1039-1056.
    Ethiopia
     
    • Wallaga (Welega; Wollega; Ouallega) Province
      • Assosa region
    		P.M. Kartashov data
    France
     
    • Auvergne
      • Haute-Loire
        • Allègre
          • Fix-Saint-Geneys
            • Vernassal
    		[var: Picotite] F.H. Forestier : "Les Péridotites Serpentinisées en France, Groupe I, Fascicule IV, Bassin du Haut Allier", BRGM, 1964
        • Blesle
          • Lubilhac
    		[var: Picotite] P.G. Pélisson : "Etude Minéralogique et Métallogénique du District Filonien Polytype de Paulhaguet (Haute-Loire, Massif Central Français)", Doctorate Thesis, Orléans, France, 1989 ; F.H. Forestier : "Les Péridotites Serpentinisées de France", Fascicule IV, BRGM, 1964
        • Brioude - Massiac area
          • Brioude
            • Azérat
    		[var: Picotite] Bull. Minéral. , 1987, 110, pp. 359-371.
    [var: Picotite] P.G. Pélisson : "Etude Minéralogique et Métallogénique du District Filonien Polytype de Paulhaguet (Haute-Loire, Massif Central Français)", Doctorate Thesis, Orléans, France, 1989
          • Lavoûte-Chilhac
            • Saint-Cirgues
    		[var: Picotite] Bull. Minéral. , 1987, 110, pp. 359-371.
          • Torsiac
            • Lanau
    		[var: Picotite] Bull. Minéral. , 1987, 110, pp. 359-371.
        • La Chaise-Dieu
          • Cistrières
    		[var: Picotite] F.H Forestier "Les Péridotites Serpentinisées en France, Fascicule IV, Massif Central Médian : Bassin du Haut Allier", BRGM, 1964
    [var: Picotite] F.H Forestier "Les Péridotites Serpentinisées en France, Fascicule IV, Massif Central Médian : Bassin du Haut Allier", BRGM, 1964
    [var: Picotite]
        • Paulhaguet
          • Salzuit
    		[var: Picotite]
      • Puy-de-Dôme
        • Jumeaux
          • Champagnat-le-Jeune
    		[var: Picotite] Bull. Minéral. , 1987, 110, pp. 359-371.
    • Corsica
      • Haute-Corse
        • Bastia
          • Canari
    		[var: Picotite] H. Azais, J. Bouladon, P. Picot, P. Sainfeld : "Le Problème du Nickel dans les Serpentines de Corse", 1968, Bulletin du BRGM
          • Casamozza
    		[var: Picotite]
    [var: Picotite]
    [var: Picotite]
          • Poggio-Mezzana
    		[var: Picotite]
    [var: Picotite] H. Azias et al. : "Le problème du nickel dans les serpentinites de Corse", Extrait du Bulletin du BRGM, N°1, 1968
        • Corte
    		[var: Picotite] H. Azias et al. : "Le problème du nickel dans les serpentinites de Corse", Extrait du Bulletin du BRGM, N°1, 1968
          • Cervione
    		[var: Picotite]
          • Ghisoni
    		[var: Picotite] H. Azias et al. : "Le problème du nickel dans les serpentinites de Corse", Extrait du Bulletin du BRGM, N°1, 1968
    [var: Picotite] H. Azias et al. : "Le problème du nickel dans les serpentinites de Corse", Extrait du Bulletin du BRGM, N°1, 1968
    [var: Picotite] H. Azias et al. : "Le problème du nickel dans les serpentinites de Corse", Extrait du Bulletin du BRGM, N°1, 1968
    [var: Picotite] H. Azias et al. : "Le problème du nickel dans les serpentinites de Corse", Extrait du Bulletin du BRGM, N°1, 1968
            • Matra
    		[var: Picotite] H. Azias et al. : "Le problème du nickel dans les serpentinites de Corse", Extrait du Bulletin du BRGM, N°1, 1968
    [var: Picotite]
    [var: Picotite] H. Azias et al. : "Le problème du nickel dans les serpentinites de Corse", Extrait du Bulletin du BRGM, N°1, 1968
    [var: Picotite]
          • Piedicorte-di-Gaggio
    		[var: Picotite] H. Azias et al. : "Le problème du nickel dans les serpentinites de Corse", Extrait du Bulletin du BRGM, N°1, 1968
          • Piedicroce
    		[var: Picotite]
    [var: Picotite]
            • Prato-di-Giovellina
    		[var: Picotite]
    [var: Picotite]
          • Sermano
    		[var: Picotite]
    • Languedoc-Roussillon
      • Gard
        • Trèves
          • Mas Aubert
    		R.C. Maury and P. Picot : "Conditions d'Apparition du Fer Natif dans une Enclave de Schistes Graphiteux d'une Basanite des Cévennes", Bulletin de Minéralogie, 1979, Vol. 102, N° 4, 326-332
    • Midi-Pyrénées
      • Ariège
        • Saint-Girons
          • Aulus-les-Bains
            • Col d'Agnès
              • Etang de Lherz
    		[var: Picotite] J.L. Bodinier et al. , Bull. Minéral. , 1987, 110, pp. 345-358 / A.B. Woodland , Chemical Geology, 10 December 1996, vol. 134, no. 1, pp. 83-112(30) / J.P. Lorand, 1989, Lithos, 23, 281-299
              • La Freychinède
    		[var: Picotite] J.L. Bodinier et al. , Bull. Minéral. , 1987, 110, pp. 345-358 / A.B. Woodland , Chemical Geology, 10 December 1996, vol. 134, no. 1, pp. 83-112(30) / J.P. Lorand, 1989, Lithos, 23, 281-299
      • Aveyron
        • Espalion
    		Boutry C., Pelisson P., Pillard F. (1986), Les zéolites d'Espalion, Le Cahier des Micromonteurs, n°2, pp: 3-7
    French West Indies
     
    • Lesser Antilles
      • Martinique
    Germany
     
    • Baden-Württemberg
      • Kaiserstuhl
        • Sasbach
    		[var: Picotite] Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
    • Bavaria
      • Franconia
        • Maroldsweisach
    		Wittern: "Mineralfundorte in Deutschland", 2001
      • Lower Bavaria
        • Bavarian Forest
          • Zwiesel
            • Bodenmais
    		Obermüller, T., (1993): Der Silberberg bei Bodenmais/Bayer. Wald, Der Aufschluss, Vol. 44, 201-224
      • Upper Palatinate
        • Waldeck
    		Pöllmann et al. (2007): Aufschluss 58, 227-233.
    • Hesse
      • North Hesse
        • Hofgeismar
    		[var: Picotite] S. Weiß: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
    • North Rhine-Westphalia
      • Siebengebirge
        • Meckenheim
          • Niederbachem
    		[var: Picotite] Frechen, J., (1976): Siebengebirge am Rhein, Laacher Vulkangebiet, Maargebiet der Westeifel, Bornträger Berlin Stuttgart
    • Rhineland-Palatinate
      • Eifel Mts
        • Daun
          • Brück-Dreis
    		[var: Picotite] Brauns, R., Die Mineralien der Niederrheinischen Vulkangebiete, Schweizerbart, Stuttgart, 1922
          • Üdersdorf
    		Guth, G., Interessante Neufunde für den Basaltbruch Liley (Löley) bei Üdersdorf in der Westeifel Mineralien-Welt 2/2000
        • Gerolstein
          • Rockeskyll
    		Haardt, W., Die vulkanischen Auswürflinge und Basalte am Killer Kopf bei Rockeskyll in der Eifel, Jb. Preuß. Geolog. Landesanstalt, Berlin 35, 177-252
        • Kelberg
          • Müllenbach
    		Vogelsang, K.:Trachyte und Basalte der Eifel, Dissertation Universität Leipzig, 1890
        • Laach lake volcanic complex
          • Kruft
    		Brauns, R., Die kristallinen Schiefer des Laacher See Gebietesund ihre Umbildung zu Sanidinit, Schweizerbart, Stuttgart, 1911
          • Mendig
            • Niedermendig
    		Brauns, R., Die kristallinen Schiefer des Laacher See Gebietesund ihre Umbildung zu Sanidinit, Schweizerbart, Stuttgart, 1911
    Brauns, R. , Die kristallinen Schiefer des Laacher See Gebietesund ihre Umbildung zu Sanidinit, Schweizerbart, Stuttgart, 1911)
              • Wingertsberg Mt.
    		Brauns, R., Die kristallinen Schiefer des Laacher See Gebietesund ihre Umbildung zu Sanidinit, Schweizerbart, Stuttgart, 1911
          • Niederzissen
            • Glees
    		Brauns, R., Die kristallinen Schiefer des Laacher See Gebietesund ihre Umbildung zu Sanidinit, Schweizerbart, Stuttgart, 1911
        • Mayen
          • Ettringen
    		Blass, G., Graf, H.W., Kolitsch, U., Sebold, D., Neue Funde aus der Vulkaneifel , Mineralien-Welt 15/3, 58-69, 2004
        • Mendig
          • Niedermendig
    		Brauns, R., Die Mineralien der Niederrheinischen Vulkangebiete, Schweizerbart, Stuttgart, 1922
        • Niederzissen
          • Glees
    		Brauns, R., Die Mineralien der Niederrheinischen Vulkangebiete, Schweizerbart, Stuttgart, 1922
        • Rieden volcano
          • Niederzissen
            • Wehr
    		Hentschel, G., Die Mineralien der Eifelvulkane, Weise Verlag, München, 1983
    Greenland
     
    • Kitaa (West Greenland) Province
      • Nuuk (Godthåb)
    		[var: Chromohercynite] No reference listed
    Contrib.Mineral Petrol (1981) 77:307-324
    Hungary
     
    • Baranya Co.
      • Mecsek Mts.
        • Mánfa
    		Mineral species of Hungary, 2005
    • Fejér Co.
      • Velencei Mts.
        • Sukoró
    		Mineral Species of Hungary, 2005
    • Nógrád Co.
      • Karancs-Medves Mts.
        • Bárna
    		[var: Picotite] C. Szabó et al. , Eur. J. Mineral. , 1996, 8, pp. 881-899.
        • Salgótarján
    		[var: Picotite] EGU / EGS - AGU - EUG Joint Assembly, Abstracts from the meeting held in Nice, France, 6 - 11 April 2003, abstract #748 "Silicate melt inclusions in olivine phenocrysts from Hegyestu (Bakony-Balaton Highland) and Pecsko alkaline basalts (Nograd-Gomor), Hungary"
    • Veszprém Co.
      • Balaton Uplands
        • Zánka
    		[var: Picotite] XVI ECROFI European Current Research On Fluid Inclusions, Porto 2001, Abstracts (Eds F. Noronha, A. Dória and A. Guedes), Faculdade de Ciências do Porto, Departamento de Geologia, Memória nº 7, pp. 237-240. Porto, 2001
    • Zala Co.
      • Zalai Mts.
        • Garabonc
    		Mineral species of Hungary, 2005
    India
     
    • Andhra Pradesh
      • Visakhapatnam District
    		Eur. J. Mineral. , 1991, 3, pp. 367-386.
    • Bihar
      • Gaya District
    Israel
     
    Gross, S. (1977): The Mineralogy of the Hatrurim Formation, Israel. Geological Survey of Israel, Bulletin no. 70, 80 pp.
    Italy
     
    • Latium
      • Rome Province
        • Bracciano Lake
    		Schingaro, E. et al. (2001): Crystal chemistry of Kimzeyite from Anguillara, Mts. Sabatini, Italy, European Journal of Mineralogy, Vol. 13, 749-759
        • Tivoli
    		No reference listed
    • Liguria
      • Genova Province
        • Mezzanego
    		[var: Picotite] Antofilli, Borgo, Palenzona, 1985. I nostri minerali. Geologia e mineralogia in Liguria. Edizioni Melita, La Spezia.
    • Lombardy
      • Sondrio Province
        • Sondalo
    		AA. VV., 1996. Collezionare minerali. Hobby & Work.
    • Piedmont
      • Verbano-Cusio-Ossola Province
    		The Canadian Mineralogist, V 42, 2004, pp. 1825-1845.
    • Sicily
      • Siracusa Province
        • Melilli
    		[var: Picotite] S. Tonarini et al. , Eur. J. Mineral. , 1996, 8, pp. 1153-1173.
    • Tuscany
      • Florence Province
        • Montaione
          • Montignoso
    		[var: Chrompicotite] Manasse E. (1922) - Sulla composizione chimica della cromopicotite di Montignoso presso Iano. - Rend. Lav. Uff. Invenz. Ric., 1.
    Ivory Coast (Côte d'Ivoire)
     
    • Worodougou region
      • Séguéla department
        • Toubabouko
    		[var: Chromohercynite] Pouclet A. et al. (2004) C.R.Geoscience 336, 9-17
    Japan
     
    • Ehime Prefecture
      • Inland Sea (Setonaikai)
    		Amer.Min.(1984) 69, 465-471
    • Hokkaido Island
      • Hidaka Province
        • Samani-gun
          • Samani-cho
    		[var: Picotite] M. Yamaguchi (1961) Mem. Fac. Sci., Kyushu University, Ser. D, Geology, 10, 2, 233-245.
    • Honshu Island
      • Chugoku Region
        • Okayama Prefecture
          • Takahashi
    		Matsueda, H. (1980) Journal of the Mining College, Akita University, Ser. A, Mining Geology, 5, #4, 15-77.; Matsueda, H. (1980) Journal of the Mining College, Akita University, Ser. A, Mining Geology, 5, #4, 15-77.
        • Tottori Prefecture
          • Hino-gun
            • Nichinan-cho
    		Alfredo Petrov - unpublished
    • Nansei Archipelago
      • Kagoshima Prefecture
        • Tokara Archipelago
    		[var: Picotite]
    Kazakhstan
     
    • Pavlodar Oblysy (Pavlodar [Pavlodarskaya] Oblast')
    		Lunar and Planetary Science XXXI
    Madagascar
     
    • Fianarantsoa Province
      • Atsimo-Atsinanana Region
        • Farafangana Department
    		[var: Chromohercynite] J.Behier(1963): Carte mineralogique de Madagascar. Archive Serv. Geol.Mad. A 1871
      • Horombe Region
        • Betroka Department
    		A.Lacroix (1922): Mineralogie de Madagascar,T.1, p 323
    • Tuléar (Toliara) Province
      • Anosy (Fort Dauphin) Region
        • Ranopiso Department
    		Eur. J. Minéral; , 1991, 3, pp.367-386
    New Zealand
     
    • South Island
      • Nelson
    		[var: Chrompicotite] No reference listed
    Norway
     
    • Finnmark
      • Alta /Seiland
        • Seiland Island
    		Robins & Tyseland (1979, p. 16); Neumann (1985, p. 61).
      • Loppa
        • Øksfjord
    		S. Elvevold and H. Reginiussen, Eur. Journ. Mineral. , 1996, 8, pp. 777-789.
    • Oppland
      • Lom
    		Davidson (1977, tabel 1); Neumann (1985, p. 55).
    • Rogaland
      • Lund
        • Flatestøl
    		Eur. J. Mineral. , 1991, 3, pp. 367-386.
    • Telemark
      • Nome
    		[var: Picotite] Brøgger (1920, p. 286); Griffin (1973); Neumann (1985, p. 54).
    Oman
     
    • Dhofar (Al Janubiyah) Province
    		The Meteoritical Bulletin 84 (Aug.2000)
    Pacific Ocean
     
    • East Pacific Rise
    		[var: Picotite] R. Hekinian et al. , Bull. Minéral. , 1985, 108, pp. 691-698.
    [var: Picotite] Contr. Min. Petr. (1998) 131, (2-3), 111 - 122.
    Peru
     
    • Puno Department
    		Eur. J. Mineral. , 1994, 6, pp. 145-150.
    Poland
     
    • Mazowieckie
      • Warszawa
    		[var: Picotite] Manecki, 2001. in Geological Quarterly Vol. 45-03 (Polish Geological Institute)
    Republic of Congo (Brazzaville)
     
    • Brazzaville Region (Renéville Region)
    		[var: Picotite] Bull. Soc. Franç. Minéralo. Cristallo. , 1974, 97, pp. 470-474.
    Russia
     
    • Eastern-Siberian Region
      • Saha Republic (Sakha Republic; Yakutia)
        • Daldyn-Alakit kimberlite field
          • Daldyn
    		[var: Picotite] M. Kamenetsky et al. , Geophysical Research Abstracts, Vol. 5, 2003.
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
          • Khibiny Massif
    		[World of Stones 95:5-6, p64]
    Shlyukova Z.V. (1986) Mineralogy of contact formations of Khibina massif, - Moscow, Nauka, p. 96 (in Rus.)
    Shlyukova Z.V. (1986) Mineralogy of contact formations of Khibina massif, - Moscow, Nauka, p. 96 (in Russ.)
    Slovakia
     
    • Banská Bystrica Region
      • Krupinská planina
    		[var: Picotite] Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k
      • Western Slovenské Rudohorie Mts
    		[var: Picotite] Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k
    • Košice Region
      • Eastern Slovenské Rudohorie Mts
    		[var: Picotite] Pauliš P., Ďuďa R., 2002:Nejznámejší mineralogická nalezište Slovenska. Kuttna, Kutná Hora, 136p
    [var: Chrompicotite] Háber,M., Hovorka,D., 1981: Ore mineralisation on the contact of an alpine type ultramafic body (Dankova, SGR Mnts). Geol.Zbor. – Geol.Carpath., 91 – 113
    [var: Chrompicotite] Pauliš P., Ďuďa R., 2002:Nejznámejší mineralogická nalezište Slovenska. Kuttna, Kutná Hora, 136p
      • Košická basin
    		Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k
      • Slovenský kras Mts
    		[var: Picotite] Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k
    • Prešov Region
      • Eastern Low Tatra Mts
        • Východná
    		[var: Picotite] Koděra et all.,1990: Topografická mineralógia Slovenska, I-III, 1590p
    South Africa
     
    • Free State Province
    		[var: Picotite] Minerals of South Africa
    • KwaZulu-Natal Province
    		Minerals of South Africa
    • Northern Cape Province
        • Gordonia District
    Spain
     
    • Castile-La Mancha
      • Albacete
        • Cancarix
    		[var: Picotite] E. Salvioli-mariani et al. , Eur. J. Mineral. , 1996, 8, pp. 1027-1039.
    • Murcia
      • Cabezzo Negro de Tallante
    		Eur. J. Mineral. , 1991, 3, pp. 367-386.
      • Jumilla
        • La Celia
    		[var: Picotite] E. Salvioli-mariani et al. , Eur. J. Mineral. , 1996, 8, pp. 1027-1039.
    Sri Lanka
     
    • Sabaragamuwa Province
    		No reference listed
    Sweden
     
    • Dalarna
      • Ludvika
    • Hälsingland
      • Ljusdal
        • Los
    		[var: Picotite] No reference listed
    • Lappland
      • Arjeplog
    		[var: Picotite]
    • Skåne
      • Hässleholm
    • Värmland
      • Filipstad
    		MinMag 52, 193
    Tanzania
     
    • Kilimanjaro Region
      • Lashaine volcano
    		[var: Picotite] Journal of Petrology, September 2002, vol. 43, no. 9, pp. 1749-1777(29)
    [var: Picotite] C.T. Lee et al. , Contrib. Mineral. Petrol. , 2000, 139, pp. 470-484.
    Uganda
     
    • Kotido District (Karamoja District)
    		Eur. J. Mineral. , 1991, 3, pp. 367-386.
    UK
     
    • England
      • Cornwall
        • Lizard Peninsula
          • St Keverne
    		[Golley & Williams, 1995, 31 - "Cornish Mineral Reference Manual"]
    USA
     
    • Alaska
      • Prince of Wales-Outer Ketchikan Borough
        • Prince of Wales Island
    		Min Rec 35:5 pp383-404, 419-420
    • Arizona
      • Gila Co.
        • San Carlos Indian Reservation
    		Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 249.
    • Arkansas
      • Hot Spring Co.
        • Magnet Cove
    		Rocks & Min.: 63:109.
    • California
      • Riverside Co.
        • Crestmore
    		[micromounts@yahoogroups.com]; American Mineralogist: 51: 56-74
      • San Luis Obispo Co.
    		[var: Picotite] U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
      • Yolo Co.
        • Knoxville
    		[var: Picotite] U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    • Colorado
      • Chaffee Co.
        • Sedalia District
    		Minerals of Colorado (1997) Eckels, E. B.
      • Clear Creek Co.
    		Minerals of Colorado (1997) Eckels, E. B.
      • Fremont Co.
        • Grape Creek District (Greenhorn District)
    		Minerals of Colorado (1997) Eckels, E. B.
        • Iron Mountain complex
    		Minerals of Colorado (1997) Eckels, E. B.
      • Gilpin Co.
    		Minerals of Colorado (1997) Eckels, E. B.
      • Larimer Co.
    		Minerals of Colorado (1997) Eckels, E. B.
      • Park Co.
        • Guffey District
    		Minerals of Colorado (1997) Eckels, E. B.
    • Georgia
      • Towns Co.
        • Youngstown
    		[var: Picotite] Minerals of Georgia: Their properties and occurrences. Robert Cook GGWRD Bull 92
    • Idaho
      • Idaho Co.
        • Maggie Creek District
    		[var: Picotite] U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    • Kansas
      • Decatur Co.
    		Workshop on Parent-Body and Nebular Modification of Chondritic Materials 4038.pdf http://www.lpi.usra.edu/meetings/chondrite/pdf/4038.pdf
    • Maine
      • Knox Co.
        • Union
    		No reference listed
    http://keck.wooster.edu/archives/symposium/02/Maine01_pdfs/brillabs.pdf.
        • Warren
    		No reference listed
      • Oxford Co.
    		[var: Picotite] Anderson, 1991. Maine Mineral Localities, 2nd ed.
      • York Co.
    		King & Foord, 1994. Mineralogy of Maine, Vol. 1., p.318.
    • New Hampshire
      • Rockingham Co.
    • New Jersey
      • Sussex Co.
        • Franklin Mining District
          • Franklin
    		Betancourt, P.P. : The Picking Table, Vol. 27(2):2-10; Parker, F.: The Picking Table:24(2):9; Dunn(1995):Pt4:581.
    • New Mexico
      • Doña Ana Co.
    		Northrop, Minerals of New Mexico, 3rd Rev. Ed., 1996
    • New York
      • Orange Co.
        • Town of Warwick
    		 Yale Peabody Museum
      • Tompkins Co.
    		[var: Picotite] Jensen (1978) Minerals of New York State,p.163
      • Westchester Co.
    		Eur. J. Mineral. , 1991, 3, pp. 367-386.
    The Minerals of New York City & Its Environs, New York Mineralogical Club Bull., Vol. 3, No. 1, Manchester, J.G. (1931): 70.
        • Peekskill
    		The Minerals of New York City & Its Environs, New York Mineralogical Club Bull., Vol. 3, No. 1, Manchester, J.G. (1931): 72.
    • North Carolina
      • Buncombe Co.
    		No reference listed
    • Utah
      • Sevier Co.
        • Pine Canyon
    		UGMS Bull 117 Minerals and Mineral Localities of Utah
    • Vermont
      • Windham Co.
    		http://serc.carleton.edu/files/NAGTWorkshops/petrology/teaching_examples/JS_pelitic_lab.doc.
    • Virginia
    		[var: Picotite] Minerals of Virginia 1990 by R. V. Dietrich
      • Henry Co.
    		Minerals of Virginia, 1990 by R. V. Dietrich
    Minerals of Virginia, 1990 by R. V. Dietrich
      • Pittsylvania Co.
    		Dana 7:694
      • Rockingham Co.
        • Harrisonburg
    		Minerals of Virginia 1990 by R. V. Dietrich
    • Washington
      • Snohomish Co.
    		Minerals of Washington, Bart Cannon, 1975
    Mineral and/or Locality
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