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Orthopyroxene Subgroup

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Emmelberg Mt., Üdersdorf, Daun, Eifel Mts, Rhineland-Palatinate, Germany
© Stephan Wolfsried

Show Orthopyroxene Subgroup Photos (3)


A subgroup name for orthorhombic Pyroxene Group minerals.
Compare Clinopyroxene Subgroup.

The most common member in rocks is enstatite.

Classification of Orthopyroxene Subgroup

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Relationship of Orthopyroxene Subgroup to other Species

Minerals in Group:
Donpeacorite:
(Mn
2+
 
,Mg)Mg[SiO
 
3
]
 
2
Enstatite:
Mg
 
2
[SiO
 
3
]
 
2
Ferrosilite:
Fe
 
2
[SiO
 
3
]
 
2

Other Names for Orthopyroxene Subgroup

Synonyms:
OrthopyroxeneOrthorhombic Pyroxene
Other Languages:

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 Orthopyroxene Subgroup

Reference List:Chatillon-Colinet, C., Newton, R.C., Perkins, D., III, and Kleppa, O.J. (1983) Thermochemistry of (Fe 3+,Mg)SiO3 orthopyroxene. Geochimica et Cosmochimica Acta: 47: 1597-1603.

Morimoto, N. (1988): Nomenclature of Pyroxenes. Am. Mineral. 73, 1123-1133.

Domeneghetti, M.C. and Steffen, G. (1992) M1, M2 site populations and distortion parameters in synthetic Mg-Fe orthopyroxenes from Mössbauer spectra and X-ray structure refinements. Physics and Chemistry of Minerals: 19: 298-306.

Skogby, H., Annersten, H., Domeneghetti, M.C., Molin, G.M., and Tazzoli V. (1992) Iron distribution in orthopyroxene: a comparison of Mössbauer spectra and X-ray refinement results. European Journal of Mineralogy: 4: 441-452.

Carpenter, M.A. and Salje, E.K.H. (1994a), Thermodynamics of nonconvergent cation ordering in minerals: II. Spinels and the orthopyroxene solid solution. American Mineralogist: 79: 1068-1083.

Ganguly, J., Yang, H.X., and Ghose, S. (1994) Thermal history of mesosiderites: Quantitative constraints from compositional zoning and Fe-Mg ordering in orthopyroxenes. Geochimica et Cosmochimica Acta: 58: 2711-2723.

Yang, H. and Ghose, S. (1994) in situ Fe-Mg order-disorder studies and thermodynamic properties of orthopyroxene (Fe,Mg)2Si2O6. American Mineralogist: 79: 633-643.

Domeneghetti, M.C., Molin, G.M., and Tazzli, V. (1995a) A crystal-chemical model for Pbca orthopyroxenes. American Mineralogist: 80: 253-267.

Domeneghetti, M.C., Molin, G.M., Stimpfl, M., and Tribaudino, M. (1995b) Orthopyroxene from Serra de Mage' meteorite: structure refinement and estimation of C2/c pyroxene contributions to apparent Pbca diffraction violations. American Mineralogist: 80: 923-929.

Yang, H. and Ghose, S. (1995b) A transitional structural state and anomalous Fe-Mg order-disorder in Mg-rich orthopyroxene, (Mg0.75Fe0.25)Si2O6. American Mineralogist: 80: 9-20.

Chai, M., Brown, M., and Slutsky, L.J. (1997) The elastic constants of an aluminous orthopyroxene to 12.5 GPa. Journal of Geophysical Research: 102: 14779-14789.

Hugh-Jones, D.A. (1997) Thermal expansion of MSiO3 and FeSiO3 ortho- and clinopyroxenes. American Mineralogist: 82: 689-696.

Hugh-Jones, .A., Chopelas, A., and Angel, R.J. (1997) Tetrahedral compression in (Mg,Fe)SiO3 orthopyroxenes. Physics and Chemistry of Minerals: 24: 301-310.

Zema, M., Domeneghetti, M.C., Molin, G.M., and Tazzoli, V. (1997) Coling rates of diogenites: astudy of Fe 3+-Mg ordering in orthopyroxene by single-crystalX-ray diffraction. Meteoritics and Planetary Science Letters: 32: 855-862.

Stimpfl, M., Ganguly, J., and Molin, G.M. (1999) Fe 2+-Mg order-disorder in orthopyroxene: equilibrium fractionation between octahedral sites and thermodynamic analysis. Contributions to Mineralogy and Petrology: 136: 297-309.

Zema, M., Domeneghetti, M.C., and Tazzoli, V. (1999) Order-disorder inetics in orthpyroxene with exsolution products. American Mineralogist: 84: 1895-1901.

Domeneghetti, M.C., Molin, G.M., Triscari, M., and Zema, M. (2000) Orthopyroxenes as a geospeedometer: thermal history of Kapoeta, Old Homestead 001 and Hughes 004 howardites. Meteoritics and Planetary Science: 35: 347-354.

Ganguly, J. and Stimpfl, M. (2000) Cation ordering in orthopyroxenes from two stony-iron meteorites: Implications for cooling rates and metal-silicate mixing. Geochimica et Cosmochimica Acta: 64: 1292-1297.

Nestola, F. and Tribaudino, M. (2003) The structure of Pbca orthopyroxenes along the join diopside-enstatite (CaMgSi2O6-Mg2Si2O6). European Journal of Mineralogy: 15: 365-371.

Zema, M., Tarantino, S.C., Domeneghetti, M.C., and Tazzoli, V. (2003) Ca in orthopyroxene: structural variations and kinetics of the disordering process. European Journal of Mineralogy: 15: 373-380.

Kung, J., Li, B.S., Uchida, T., Wang, Y.B., Neuville, D., and Liebermann, R.C. (2004) In situ measurements of sound velocities and densities across the orthopyroxene - high-pressure clinopyroxene transition in MgSiO3 at high-pressure. Physics of the Earth and Planetary Interiors: 147: 27-44.

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    Localities for Orthopyroxene Subgroup

    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.
    Algeria
     
    • Tamanghasset Province
      • Ahaggar Mts (Hoggar Mts)
        • In Ouzzal
    		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
    		C. Lemanski, Jr. (re-entry lost Mindat data).
    C. Lemanski, Jr. (re-entry lost Mindat data).
    Antarctica
     
    • Eastern Antarctica
      • Enderby Land
        • Edward VIII Bay
    		Journal of Petrology, 2004, 45 (7), pp. 1481-1512.
        • Tula Mts
          • Mt. Riiser-Larsen
    		Y. Motoyoshi and B.J. Hensen, Eur. J. Mineral., 1989, 1, pp. 467-471.
      • Princess Elizabeth Land
        • Ingrid Christensen Coast
          • Prydz Bay
            • Larsemann Hills (Larseman Hills)
    		Edward S. Grew, et al (2007) European Journal of Mineralogy, 19, 29-245
      • Victoria Land
    		Meteoritical Bulletin, 84 (Aug. 2000)
    Australia
     
    • Northern Territory
    		Geology : Vol. 25, N° 3, pp. 215-218
    • Queensland
    • South Australia
      • Olary Province
        • Weekeroo Station
    		Bunch, T.E., Keil, K., and Olsen, E. (1970): Contributions to Mineralogy and Petrology 25, 297-340.
    • Western Australia
      • Gascoyne District
    		Journal of the Royal Society of Western Australia, 84:149-152, 2001
    Austria
     
    • Lower Austria
      • Dunkelsteinerwald
        • Aggsbach Dorf
    		D.A. Carswell et al., Eur.J. Mineral., 1989, 1, pp. 455-466.
    Botswana
     
    • North-East District
      • Francistown
        • Selebi-Phikwe (Selbi-Pikwe) belt
    		Maier, W.D., Barnes, S.-J., Chinyepi, G., Barton, Jr., J.M., Eglington, B., and Setshedi, I. (2008): Mineralium Deposita 43, 37-60.
    Brazil
     
    • Central-West Region
      • Goiás
        • Sanclerlândia
    		Candia, M.A.F., and Gaspar, J.C. (1997): Mineralogy and Petrology 60, 27-40.
    • Southeast Region
      • Minas Gerais
    		Chris D. Parkinson et al. , " Ultrahigh-pressure pyrope-kyanite granulites and associated eclogites in Neoproterozoic nappes of southeast Brazil", 2001, Universidade do Estado do Rio de Janeiro, http://akmotoki.tripod.com/2001/Waseda/Cdp.html
    Canada
     
    • Alberta
      • Peace River
    		Canadian Mineralogist Vol. 21, pp. 29-35 (1983)
    • New Brunswick
      • Carleton Co.
        • Benton
    		Meteoritics & Planetary Science 38:157-161 (2003)
    • Newfoundland and Labrador
      • Newfoundland
        • Baie Verte Peninsula
          • Betts Cove
    		Journal of Petrology, Vol. 40, Issue 12, Dec. 1999, pp. 1853-1889.
    Journal of Petrology, Vol. 40, Issue 12, Dec. 1999, pp. 1853-1889.
    • Northwest Territories
      • Contwoyto Lake
    		Journal of Petrology 40:79-104
      • Lac de Gras
    • Ontario
      • Thunder Bay District
        • Lac des Iles Complex
          • Roby Zone
    		Economic Geology 2005 100: 43-61
    • Québec
      • Grenville Province
    		C. Lemanski, Jr. (re-entry of lost Mindat data).
    Chile
     
    • Antofagasta Region
      • El Loa Province
        • San Pedro volcano
    		C. Lemanski, Jr. (re-entry of lost Mindat data).
    China
     
    • Anhui Province
      • Anqing Prefecture
        • Qianshan Co.
    		The Island Arc, April 1998, V 7, N 1-2, pp. 135-141.
        • Tongcheng Co.
    		Yican Liu, Shutong Xu, Shuguang Li, Laili Jiang, Weiping Wu, Guanbao Chen, and Wen Su (2000): Science in China, Series D (Earth Sciences), 43(suppl.), 178-188.
    Yican Liu, Shutong Xu, Shuguang Li, Laili Jiang, Weiping Wu, Guanbao Chen, and Wen Su (2000): Science in China, Series D (Earth Sciences), 43(suppl.), 178-188.
      • Bozhou Prefecture
        • Qiaocheng District
          • Xiaoyanzhuang
    		http://www.lpi.usra.edu/meetings/LPSC99/pdf/1774.pdf / Lunar and Planetary Science XXX, J. C. Bridges et al.
      • Lu'an Prefecture
        • Shou Co.
    		Am. Min. , V 90, pp. 801-813, 2005 / Journal of Petrology, June 2004, V 45, N° 6, pp. 1125-1145.
    • Beijing Municipality
      • Miyun Co.
    		http://wrgis.wr.usgs.gov/open-file/of03-220/DATABASE/lode_deposits.txt
    • Hubei Province
      • Jingmen Prefecture
        • Jingshan Co.
    		Zhang Hong-Fu, Min Sun, Lu Feng-Xiang, Zhou Xin-Hua, Zhou Mei-Fu, Liu Yong-Shun, and Zhang Guo-Hui (2001): Geochemical Journal 35(5), 315-331.
    • Liaoning Province (Manchuria; Dongbei Region)
      • Chaoyang Prefecture
        • Beipiao Co.
    		Shan Gao et al. , Letters to Nature, Nature, Vol. 432, 16 December 2004.
    • Qinghai (Chinghai) Province
      • Haixi Autonomous Prefecture
        • North Qaidam UHP Terrane
    		- Shuguang Song, Lifei Zhang, and Yaoling Niu (2004): American Mineralogist 89, 1330-1336.
    Zhang, G., Zhang, L., Song, S., Niu, Y., and Wang, Q. (2006): Eos Trans. AGU, 87(36), West. Pac. Geophys. Meet. Suppl., Abstract V32A-03.
    • Shandong Province
      • Jiaodong Gold Province
        • Weihai Prefecture
          • Rongcheng Co.
    		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
        • Aletai (Altay) Prefecture
          • Fuyun Co.
    		Li Zi-Long et al. , Journal of Zhejiang University SCIENCE, 2004 5(10), pp. 1180-1182.
    Cuba
     
    • Oriente Province
    		Acta Geológica Hispánica, 1998, 33(1-4):351-371
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Central Bohemia Region
        • Kutná Hora (Kuttenberg)
      • South Bohemia Region
        • Písek
    		J. Kotkova, S.L. Hartley, M. Fisera, Eur J. Mineral., 1997, Vol. 9, N. 5, pp. 1017-1033
    Egypt
     
    • Red Sea
    		Eur. J. Mineral. , 1993, 5, pp. 1039-1056.
    Finland
     
    • Itä-Suomen Lääni
    		Grew, E.S., Pertsev, N.N., Vrána, S., Yates, M.G., Shearer, C.K., and Wiedenbeck, M. (1998): Contributions to Mineralogy and Petrology 131, 22-38.
    France
     
    • Languedoc-Roussillon
      • Hérault
        • Montpellier
    		N. Cabanes and J.C.C. Mercier, Bull. Minéral. , 1988, 111, pp. 65-77.
    • Limousin
      • Haute-Vienne
    		D. Coffrant, Bull. Soc. Fr. Minéral. Cristallogr. , 1974, 97, pp. 70-78.
    • Midi-Pyrénées
      • Ariège
        • Saint-Girons
          • Aulus-les-Bains
            • Col d'Agnès
              • Etang de Lherz
    		J.L. Bodinier et al. , Bull. Minéral. , 1987, 110, pp. 345-358 / J.P. Lorand, 1989, Lithos, 23, 281-299
              • La Freychinède
    		J.L. Bodinier et al. , Bull. Minéral. , 1987, 110, pp. 345-358 / J.P. Lorand, 1989, Lithos, 23, 281-299
      • Aveyron
        • Rodez
          • Pont-de-Salars
    • Provence-Alpes-Côte d'Azur
      • Hautes-Alpes
        • Briançon
          • Montgenèvre
            • Chenaillet Massif
    		http://wwwpsvt.free.fr/svt/geol/alpes/chenaillet.htm
    • Rhône-Alpes
      • Drôme
        • Romans-sur-Isère
          • Saint-Jean-en-Royans
    		M. Christophe Michel-Lévy, Bull. Minéral. , 1987, 110, pp. 449-458.
      • Rhône
        • Lyonnais Mts
    		http://alex.geosciences.univ-rennes1.fr:85/Document.htm&numrec=031994168917690 and http://christian.nicollet.free.fr/page/enseignement/LicenceSN/manteauMetam.html and http://www.ens-lyon.fr/Planet-Terre/Infosciences/Geodynamique/Chimie-enveloppes/Articles/peridotite.html
    Germany
     
    • Bavaria
      • Franconia
        • Maroldsweisach
    		Wittern: "Mineralfundorte in Deutschland", 2001
    • Rhineland-Palatinate
      • Eifel Mts
        • Andernach
          • Nickenich
    		Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
        • Gerolstein
          • Essingen
            • Hohenfels
    		Aufschluss 82(6), 237-240
        • Hillesheim
          • Zilsdorf
    		Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
        • Manderscheid
          • Bettenfeld
    		S. Weiß: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
    Greece
     
    • Thraki (Thrace; Thracia) Department
      • Komotini (Rodopi; Rhodope) Prefecture
        • Thermes
    		Eur. J. Mineral. , 1994, 6, pp. 733-738.
    Greenland
     
    • Tunu (East Greenland) Province
      • Kangerlussuaq Firth
        • Kangerlussuaq complex
    		Mineralogical Magazine, August 2004, Vol. 68(4), pp. 615–632
    Hungary
     
    • Nógrád Co.
      • Karancs-Medves Mts.
        • Bárna
    		C. Szabó et al. , Eur. J. Mineral. , 1996, 8, pp. 881-899.
    India
     
    • Andhra Pradesh
      • Visakhapatnam District
    		Eur. J. Mineral. , 1991, 3, pp. 367-386.
    Italy
     
    • Piedmont
      • Torino Province
        • Sesia-Lanzo zone
          • Lanzo Valley
            • Lanzo Massif
              • Balangero - Corio area
                • Malone Valley
    		Eur. J. Mineral. , 1989, 1, pp. 89-104.
                  • Rocca Canavese
    		Eur. J. Mineral. , 1989, 1, pp. 89-104.
              • Tesso Valley
    		Eur. J. Mineral. , 1989, 1, pp. 89-104.
      • Verbano-Cusio-Ossola Province
        • Different Municipalities
    		http://www.unileoben.ac.at/~chemie/zaccarini%20et%20al%20finero%20Platinumsymposium%202005.pdf
    Jamaica
     
    • Saint Andrew Parish
    		Scott, P.W., Jackson, T.A., and Dunham, A.C. (1999): Mineralium Deposita 34, 718-723.
    Japan
     
    • Hokkaido Island
      • Hidaka Province
        • Samani-gun
          • Samani-cho
    		E. Takazawa et al. , Journal of Petrology, V 40, N 12, December 1999, pp. 1827-1851.
    E. Takazawa et al. , Journal of Petrology, V 40, N 12, December 1999, pp. 1827-1851.
    E. Takazawa et al. , Journal of Petrology, V 40, N 12, December 1999, pp. 1827-1851.
    E. Takazawa et al. , Journal of Petrology, V 40, N 12, December 1999, pp. 1827-1851.
    E. Takazawa et al. , Journal of Petrology, V 40, N 12, December 1999, pp. 1827-1851.
    • Honshu Island
      • Chubu Region
        • Ishikawa Prefecture
          • Neagari
            • Taisei
    		Ishiwatari, A. et al. (1995) Chikyu Kagaku, 49, no. 3, 179-182.
      • Kinki region
        • Osaka Prefecture
    		Tainosho, Y. (1974) Journal of Geosciences, Osaka City University, 17, 53-71.
    Libya
     
    • Dar al Gani
    Madagascar
     
    • Tuléar (Toliara) Province
      • Anosy (Fort Dauphin) Region
        • Betroka District
    		Knorring,v.O; Sahama, Th.G & Lehtinen, M.(1969): Kornerupine-bearing gneiss from Inanakafy nearBetroka, Madagascar. Bull.Geol.Soc. Finland 41, 79-84
    Montserrat
     
    Montserrat Volcano Observatory
    Morocco
     
    • Meknès-Tafilalet Region
      • Er Rachidia Province
        • Erfoud (Erfud)
    		The Meteoritical Bulletin, n.94 - http://www.meteoriticalsociety.org/simple_template.cfm?code=pub_bulletin
    • Tanger-Tétouan Region
      • Beni Bousera massif
    		Econ Geol (1990) 85:112-132
    Econ Geol (1990) 85:112-132
    Econ Geol (1990) 85:112-132
    Niger
     
    • Benue River
    		Bunch, T.E., Keil, K., and Olsen, E. (1970): Contributions to Mineralogy and Petrology 25, 297-340.
    Norway
     
    • Aust-Agder
      • Arendal
    		T.L. Knudsen and A. Lidwin, Eur. J. Mineral. , 1996, 8, pp. 1041-1063.
    T.L. Knudsen and A. Lidwin, Eur. J. Mineral. , 1996, 8, pp. 1041-1063.
    T.L. Knudsen and A. Lidwin, Eur. J. Mineral. , 1996, 8, pp. 1041-1063.
    Hulzebos-Sijen N.M.P.E., Visser, D., Maarschalkerweerd, M.H. & Maijer, C., (1990). Two new kornerupine localities in the Bamble Sector, south Norway. Abstract 19th Nordic Geological Winter Meeting, Geonytt, 17, 58
    • Buskerud
      • Kongsberg
        • Lake Mykle
          • Dammen
    		NGU Bulletin, 442, 2004, pp. 23-28.
    • Finnmark
      • Loppa
        • Øksfjord
    		S. Elvevold and H. Reginiussen, Eur. Journ. Mineral. , 1996, 8, pp. 777-789.
    • More og Romsdal
      • Midsund
    		Geology, July 2005, V. 33, N° 7, pp. 613-616.
      • Ulstein
    		Journal of Metamorphic Geology, Vol. 17, Issue 6, p. 637, Nov. 1999.
    • Nordland
      • Lofoten
        • Flakstad
          • Flakstadøy Island
    		K. Kullerud, Eur. J. Mineral. , 1996, 8, pp. 355-370.
    • Rogaland
      • Bjerkreim
        • Vikeså
    		Maijer, C.; Jansen, J.B.H.; Wevers, J. & Poorter, R.P.E. (1977): Contribution to the mineralogy of Norway, no 63. Osumilite, a new mineral to Norway. Norsk Geologisk Tidsskrift 57 (2), 187-188
      • Eigersund
    		Neeb, P-R, ( 2004): Beskrivelse til geologisk kart over Rogaland Anortosittprovins. Norges Geologiske Undersøkelse Rapport 2004-007
      • Sokndal
    		Gierth, E. & Krause, H. (1973): Die Ilmenitlagerstätte Tellnes (Süd-Norwegen). Norsk Geologisk Tidsskrift 53: 359-402
    • Sogn og Fjordane
      • Stadlandet
        • Selje
    		J. Metam. Geol. , 2003, 21, pp. 601-612.
    Oman
     
    • Dhofar (Al Janubiyah) Province
    		Meteoritical Bulletin No. 86
    www.meteoriticalsociety.org/bulletin/mb87.pdf.
    The Meteoritical Bulletin, No. 88, 2004 JULY, Meteoritics & Planetary Science 39, Axxx–Axxx (2004)
    • Sayh al Uhaymir
    		The Meteoritical Bulletin, No. 87
    Pacific Ocean
     
    • East Pacific Rise
    		R. Hekinian et al. , Bull. Minéral. , 1985, 108, pp. 691-698.
    Peru
     
    • Puno Department
    		Eur. J. Mineral. , 1994, 6, pp. 145-150.
    Russia
     
    • Eastern-Siberian Region
      • Saha Republic (Sakha Republic; Yakutia)
    www.venuewest.com/8IKC/s2post.htm.
    • Urals Region
      • Southern Urals
        • Bashkortostan (Bashkiria) Republic
    		F. Zaccarini et al. , The Canadian Mineralogist, Vol. 42, pp. 545-562 (2004).
    Saint Vincent and the Grenadines
     
    • Saint Vincent
    		Journal of Petrology 10:1721-1764
    Slovakia
     
    • Banská Bystrica Region
      • Cérová Mts
    		M. Huraiova et al. , Eur. J. Mineral. , 1996, 8, pp. 901-916.
    Solomon Islands
     
    • Malaita Province
      • Malaita Island (Mala Island)
    		SHIRAISHI and Eiji OHTANI (2007) “Raman spectroscopic study of a garnetite xenolith from Malaita, Southwest Pacific”. Journal of Mineralogical and Petrological Sciences, 102, 337-345.
    South Africa
     
    • Northern Cape Province
      • Aggeneys
    		www.portergeo.com.au/database/mineinfo.asp?mineid=mn017
      • Namaqualand
    		M. A. G. Andreoli, et al (1994) Economic Geology; August 1994; v. 89; no. 5; p. 994-1016.
    • Northwest Province
    		www.lpi.usra.edu/meetings/impacts97/pdf/6055.pdf.
    • Western Cape Province
      • Vanrhynsdorp
    		M. A. G. Andreoli, et al (1994) Economic Geology; August 1994; v. 89; no. 5; p. 994-1016.
    Spain
     
    • Andalusia
      • Málaga
        • Carratraca
    		Econ Geol (1990) 85:112-132
        • Mijas
    		Econ Geol (1990) 85:112-132
        • Ojén
          • Ojén Iherzolite massif
    		Econ Geol (1990) 85:112-132
    Econ Geol (1990) 85:112-132
    Econ Geol (1990) 85:112-132
    Econ Geol (1990) 85:112-132
        • Ronda Massif
    		Econ Geol (1990) 85:112-132
    Econ Geol (1990) 85:112-132
        • Sierra Alpujata
    		I. S. Oen, C. Kieft, E.A.J. Burke, A.B. Westerhof : "Orcelite and associated minerals in the Ni-Fe-As-S system in chromitites and orthopyroxenites of Nebral, Malaga, Spain", Bull. Minéral., 1980, 103, 198-208
    • Castile-La Mancha
      • Albacete
        • Cancarix
    		E. Salvioli-mariani et al. , Eur. J. Mineral. , 1996, 8, pp. 1027-1039.
    Sri Lanka
     
    • Central Province
    Switzerland
     
    • Grischun (Grisons; Graubünden)
      • Albula Valley
        • Landwasser Valley
          • Davos
            • Wolfgang
    		Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 170.
    Tanzania
     
    • Kilimanjaro Region
    		C.T. Lee et al. , Contrib. Mineral. Petrol. , 2000, 139, pp. 470-484.
    Tunisia
     
    • Tataouine Governorate
      • Tataouine (Foum Tatahouine)
    Uganda
     
    • Kotido District (Karamoja District)
    		Eur. J. Mineral. , 1991, 3, pp. 367-386.
    UK
     
    • Scotland
      • Outer Hebrides
        • Isle of Harris
    		AmMin 85: 1474-1484
    USA
     
    • Colorado
      • Weld Co.
        • Johnstown
    		American Mineralogist, Volume 61, pages 373-378, 1976
    • Georgia
      • Wilcox Co.
    		Bunch, T.E., Keil, K., and Olsen, E. (1970): Contributions to Mineralogy and Petrology 25, 297-340.
    • Indiana
      • Tippecanoe Co.
        • Lafayette
    		www-curator.jsc.nasa.gov/antmet/mmc/Lafay.pdf.
    • Michigan
      • Iron Co.
        • Lake Ellen
    		Heinrich, Mineralogy of Michigan (2001)
    • Montana
      • Judith Basin Co.
        • Little Belt Mts
          • Yogo District
    		http://www.littlebelt.com/geology/baldy.shtml _ http://www.koeln.netsurf.de/~w.steffens/usa.htm
    • New Hampshire
    		AmMin 85:1606­1616
      • Rockingham Co.
        • Raymond
    		http://jmchone.web.wesleyan.edu/Gregs_Publications/NEGSA95abstract.pdf.
    • New York
      • Westchester Co.
    		Eur. J. Mineral. , 1991, 3, pp. 367-386.
    • North Carolina
      • Buncombe Co.
    		No reference listed
    • Ohio
      • Clark Co.
        • Springfield
    		Bunch, T.E., Keil, K., and Olsen, E. (1970): Contributions to Mineralogy and Petrology 25, 297-340.
    • Texas
      • Ector Co.
        • Odessa
    		Meteoritics, Vol. 17, p.256
        • Penwell
    		www.meteorlab.com; Meteoritics, Vol. 17, p.256; Meteoritics, Vol. 16, p.361
      • Hamilton Co.
        • Carlton
    		American Mineralogist, Volume 79, pages 375-380, 1994
    • Wisconsin
    		www.uwrf.edu/~wc01
    R&M 73:11-12 pp 378-399 Wisconsin Mineral Locality Index
    R&M 73:11-12 pp 378-399 Wisconsin Mineral Locality Index
    R&M 73:11-12 pp 378-399 Wisconsin Mineral Locality Index
    R&M 73:11-12 pp 378-399 Wisconsin Mineral Locality Index
      • Iron Co.
    		R&M 73:11-12 pp 378-399 Wisconsin Mineral Locality Index
      • Lincoln Co.
    		R&M 73:11-12 pp 378-399 Wisconsin Mineral Locality Index
      • Shawano Co.
    		R&M 73:11-12 pp 378-399 Wisconsin Mineral Locality Index
      • Waushara Co.
        • Saxeville
    		Bunch, T.E., Keil, K., and Olsen, E. (1970): Contributions to Mineralogy and Petrology 25, 297-340.
    Zimbabwe
     
    • Masvingo District
    		Kolb, J., Kisters, A.F.M., Hoernes, S., and Meyer, F.M. (2000): Mineralium Deposita 35, 109-125.; Econ Geol (1996) 91:1225-1238
    Mineral and/or Locality
    Google
     
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