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Ludwigite Group

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About Ludwigite GroupHide

This page provides mineralogical data about Ludwigite Group.


Relationship of Ludwigite Group to other SpeciesHide

Group Members:
Azoproite (Mg,Fe2+)2(Fe3+,Ti,Mg)(BO3)O2Orth.
Bonaccordite Ni2Fe3+(BO3)O2Orth.
Fredrikssonite Mg2(Mn3+,Fe3+)(BO3)O2Orth.
Ludwigite Mg2Fe3+(BO3)O2Orth.
  Marinaite Cu2Fe3+O2(BO3)Mon. 2/m : P21/b
Vonsenite Fe2+2Fe3+(BO3)O2Orth.
Structurally related to group(s):

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.

Ludwigite Group in petrologyHide

An essential component of rock names highlighted in red, an accessory component in rock names highlighted in green.

Internet Links for Ludwigite GroupHide

Localities for Ludwigite GroupHide

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.
Afghanistan
 
  • Daykundi Province (Daykondi Province)
    • Gizab District
[Ludwigite] Orris, G.J., and Bliss, J.D. (2002): Mines and Mineral Occurrences of Afghanistan. United States Geological Survey Open-File Report 02-110
  • Ghazni Province (Gazni Province)
    • Jaghuri District
[Ludwigite] Orris, G.J., and Bliss, J.D. (2002): Mines and Mineral Occurrences of Afghanistan. United States Geological Survey Open-File Report 02-110
[Ludwigite] Orris, G.J., and Bliss, J.D. (2002): Mines and Mineral Occurrences of Afghanistan. United States Geological Survey Open-File Report 02-110
  • Kandahar Province (Qandahar Province)
    • Khakrez District
[Ludwigite] Orris, G.J., and Bliss, J.D. (2002): Mines and Mineral Occurrences of Afghanistan. United States Geological Survey Open-File Report 02-110
Argentina
 
  • Jujuy
    • Humahuaca Department
      • Aguilar district
[Ludwigite] Milka K. de Brodtkorb (2002) Las Especies Minerales de la Republica Argentina. Vol. 1 (elements, sulphides and sulphosalts). (Asociacion Mineralogica Argentina)
[Vonsenite] USGS Open-File Report 2009-1252 Sediment-hosted zinc-lead deposits of the world - Database and grade and tonnage models
Australia
 
  • Tasmania
    • Circular Head municipality
      • Corinna-Savage River district
[Ludwigite] Bottrill & Taheri, 2008, Savage River mine, Unpub. Rept, Mineral Resources Tasmania
    • Waratah-Wynyard municipality
      • Waratah district
        • Waratah
[Vonsenite] Bottrill (unpub)
    • West Coast municipality
      • Rosebery district
[Vonsenite] R Bottrill, unpublished research
      • Zeehan district
        • Mt Heemskirk mineral field
[Ludwigite] Bottrill & Baker (in prep) Catalogue of minerals of Tasmania; Tested by XRD and SEM-EDS by R Bottrill, unpub. rept.
[Ludwigite] Bottrill & Baker (in prep) Catalogue of minerals of Tasmania
        • North Dundas
[Ludwigite] Patterson, D.J., 1979, Renison mine, Tasmania. Unpub. PhD thesis, Uni. Tas.
Austria
 
  • Salzburg
    • Hohe Tauern
      • Kaprun valley
        • Kaprun
[Vonsenite] Kolitsch, U. & Brandstätter, F. (2012): 1750) Anglesit, Apatit, Azurit, Fayalit, Humboldtin, Laihunit, Magnetit, Vonsenit und eine Cu-S-Si-O-H-Phase aus einer Kupferschlacke vom Lechnerberg bei Kaprun, Salzburg. Pp. 153-155 in Niedermayr, G. et al. (2012): Neue Mineralfunde aus Österreich LXI. Carinthia II, 202./122., 123-180.
  • Tyrol
    • North Tyrol
      • Zillertal
        • Schlegeis valley (Schlegeisgrund)
[Ludwigite] G. Franz, D. Ackermann, E. Koch: Amer. Mineral. 66:872-877 (1981)
Bulgaria
 
  • Yambol Oblast
    • Tundzha Obshtina
[Ludwigite] Marcus Voigt collection
Canada
 
  • Ontario
    • Hastings Co.
      • Dungannon Township
        • York River area
[Ludwigite] Sabina, A.P. (1982): Some rare minerals of the Bancroft area. Mineralogical Record 13 (4), 226-228
  • Québec
    • Outaouais
      • Les Collines-de-l'Outaouais RCM
        • Chelsea
[Ludwigite] Geological Survey of Canada Miscellaneous Report 41
        • Wakefield
[Ludwigite] Sabina, A.P. (1987) Rocks & Minerals for the collector; Hull-Maniwaki, Quebec, Ottawa-Peterborough, Ontario. GSC Misc. Report 41, 34-35 p.
China
 
  • Anhui Province
    • Huaibei Prefecture
      • Suixi Co.
        • Sanpu ore field
[Ludwigite] Yanjing Chen, Huayong Chen, Khin Zaw, Pirajno, F., and Zengjie Zhang (2007): Ore Geology Reviews 31, 139-169.
[Ludwigite] Yiming Zhao, Yinan Zhang, and Chengsi Bi (1999): Ore Geology Reviews 14, 227-249.
[Ludwigite] Yiming Zhao and Daxin Li (2003): Mineral Deposits 22(4), 345-359
    • Xuancheng Prefecture
      • Xuanzhou District
[Ludwigite] Lianxing Gu, Khin Zaw, Wenxuan Hu, Kaijun Zhang, Pei Ni, Jinxiang He, Yaotong Xu, Jianjun Lu, and Chunming Lin (2007): Ore Geology Reviews 31, 107-138.
  • Guangdong Province
    • Heyuan Prefecture
      • Lianping Co.
[Ludwigite] Jianxiong Zhou and Jinyan Lu (1981): Acta Mineralogica Sinica 1(4), 193-199; Lianshun Feng (1986): Geology and Prospecting 22(3), 21-27
    • Qingyuan Prefecture
      • Yangshan Co.
[Ludwigite] Zhenhai Wang (2000): Guangdong Geology 15(2), 9-18
  • Hebei Province
    • Baoding Prefecture
      • Laiyuan Co.
[Ludwigite] Chang Zhaoshan and Feng Zhongyan (1996): Acta Scientiarum Naturalium Universitatis Pekinensis 32(6), 724-733; Guoxi Ma (2002): Mineral Deposits 21(suppl.), 342-345
  • Hunan Province
    • Hengyang Prefecture
      • Changning Co.
        • Dayishan Sn-polymetallic ore field
[Ludwigite] Rongwen Zhou and Zhishun Chen (1991): Geology and Prospecting 27(3), 29-31
[Ludwigite] Yang Guangming, Peng Zhizhong, and Pan Zhaolu (1985): Acta Mineralogica Sinica 5(2), 97-101; Aleksandrov, S.M. (1998): Geochemistry of skarn and ore formation in dolomites. VSP (Utrecht, Tokyo), 300 pp.
[Ludwigite] Rongwen Zhou and Zaixi Li (1992): Hunan Geology 11(1), 71-74
    • Yongzhou Prefecture
      • Dao Co.
[Ludwigite] Fushun Li, Ruhua Kang, Xuyun Hu, Wuliang Ma, Xinhua Huang, Yonghong Zeng, Junbin Tang, Xian Zhu, Zhiwei Qin, Jie Zhao, and Libin He (2012): Geology in China 39(2), 445-457
  • Inner Mongolia Autonomous Region
    • Ulanhad League (Chifeng Prefecture)
      • Linxi Co.
        • Linxi
[Ludwigite] Ottens, B. & Bin, J. (2014): Seltene Boratmineralien aus der Inneren Mongolei, China. Lapis, 39 (7/8), 66-68.
  • Jiangsu Province
    • Nantong Prefecture
      • Qidong Co.
[Ludwigite] Kamitani, M., Okumura, K., Teraoka, Y., Miyano, S., and Watanabe, Y. (2007): Mineral Resources Map of East Asia. Geological Survey of Japan.
  • Jilin Province (Manchuria; Dongbei Region)
    • Tonghua Prefecture
      • Ji'an Co.
[Ludwigite] Zongkai Lu (1984): Jilin Geology 3(3)
  • Liaoning Province (Manchuria; Dongbei Region)
    • Dandong Prefecture
      • Fengcheng Co.
[Ludwigite] Rongge Xiao, Oi Takao, Hongcai Fei, and Masao Nomura (2003): Geoscience 17(2), 137-142; Yiming Zhao and Daxin Li (2003): Mineral Deposits 22(4), 345-359; Xuehui Xia, Fei Yan, Yuhai Zhao, and Wenzong Chang (2006): Mineral Deposits 25(1), 83-88; Cuizhi Wang, Rongge Xiao, and Jingdang Liu (2008): Acta Geoscientia Sinica 30(5), 542-552; Guyue Hu, Yanhe Li, Changfu Fan, Kejun Hou, Chengyu Wang, and Guiqing Xie (2014): Mineral Deposits 33(4), 821-832
    • Liaodong Peninsula
      • Dalian Prefecture
        • Wafangdian Co.
[Ludwigite] Matsuda, K. (1969) Copper-bearing contact deposits of Hua-tung-kou, Fu Hsien, Feng-tien province, Manchuria (in: Geology and Mineral Resources of the Far East, vol. 2, pp 414-422, Tokyo University Press); Zhiqian Zhang and Jianning Wang (2009): Gold Science and Technology 17(2), 34-37, 53; Zhiqian Zhang, Jianning Wang, and Hongfan Qu (2011): Gold Science and Technology 19(1), 38-41
      • Yingkou Prefecture
        • Dashiqiao Co.
[Ludwigite] Rongge Xiao, Oi Takao, Hongcai Fei, and Masao Nomura (2003): Geoscience 17(2), 137-142; Cuizhi Wang, Rongge Xiao, Jingdang Liu, Hongcai Fei, Wenwu Wang, Hongchun Zhou, and Jingqing Liu (2006): Mineral Deposits 25(6), 683-692; Rongge Xiao, Jingdang Liu, Zhen Wu, Bin Wang, and Jiarui Feng (2007): Geoscience 21(4), 638-644
    • Liaoyang Prefecture
      • Liaoyang Co.
[Ludwigite] Mingshou Yang (1983): Geology and Prospecting 19(2), 8-18
  • Qinghai Province
    • Haixi Autonomous Prefecture
      • Dulan Co.
[Ludwigite] Guoqiang Tian, Duolu Zhu, and Yong Tian (2006): Gansu Metallurgy 28(3), 63-65
  • Xinjiang Autonomous Region
    • Kezilesu Autonomous Prefecture (Kizilsu Autonomous Prefecture; Qizilsu Autonomous Prefecture)
      • Atushi Co. (Artux Co.; Atux Co.; Atush Co.)
[Ludwigite] Fuquan Yang, Huijuan Deng, Haodong Xia, Boyong Ma, and Liben Wang (2003): Xinjiang Geology 21(4), 426-432
  • Yunnan Province
    • Baoshan Prefecture
      • Tengchong Co.
        • Tengchong Sn belt
          • Diantan
[Ludwigite] Feibao Wu and Zongyu Li (1986): Geology and Prospecting 22(8), 20-26; Shilu Zhang (1986): Mineral Deposits 5(3), 19-26
Czech Republic
 
  • Karlovy Vary Region
    • Krušné Hory Mts (Erzgebirge)
      • Jáchymov District (St Joachimsthal)
[Ludwigite] Šrein, V., Hloušek, J.: Ludwigit a hulsit z Krušných hor. Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 1998, roč. 6, s. 243-246.
  • Ústí Region
    • Krušné Hory Mts (Erzgebirge)
      • Klášterec nad Ohří
[Ludwigite] Robert Vaňo specimens
        • Měděnec (Kupferberg)
[Ludwigite] Roman Gramblicka Collection
Finland
 
  • Eastern Finland Region
    • Pieksämäki
[Ludwigite] Virtasalmi-Copper Database. Geological Survey of Finland (2009)
France
 
  • Occitanie
    • Pyrénées-Orientales
      • Prats-de-Mollo-la Preste (Prats de Molló-la Presta)
[Ludwigite] Goujou J-C., Guitard G., Berbain C. (2000), Le massif de Costabonne, 2464 m (Pyrénées-Orientales), Le Règne Minéral, n°32, pp: 5-12
Germany
 
  • Rhineland-Palatinate
    • Gerolstein
      • Roth
[Vonsenite] Blaß, G. & Schüller, W. (2012): Der Rother Kopf in der Vulkaneifel. Lapis, 37 (3), 20-29.
  • Saxony
    • Erzgebirge
[Ludwigite] Lapis, 17 (10), 13-24+82.
        • Antonsthal
[Ludwigite] http://www.mineralienatlas.de/lexikon/index.php/Deutschland/Sachsen/Chemnitz%2C%20Direktionsbezirk/Erzgebirgskreis/Schwarzenberger%20Kuppel/Antonsthal/F%E4llbach
[Ludwigite] Gröbner J., Kolitsch U.; Neufunde aus dem Erzgebirge (II), Mineralien-Welt Jg 17 (2006), 3, pag. 22-27.
      • Schwarzenberg District
        • Pöhla
[Ludwigite] Collection of Chester S. Lemanski, Jr.
Italy
 
  • Campania
    • Naples Province
      • Somma-Vesuvius Complex
        • Monte Somma
          • Sant'Anastasia
[Vonsenite] M. Carati - Guida alla mineralogia vesuviana - Calderini, Bologna, 1982
[Vonsenite] Russo, M., Punzo, I. (2004): I minerali del Somma-Vesuvio, AMI
          • Terzigno
[Vonsenite] Luigi Chiappino data
          • Torre del Greco
[Vonsenite] Mariano Carati - Guida alla mineralogia vesuviana - Calderini, Bologna, 1982
    • Phlegrean Volcanic Complex
      • Naples Province
        • Ischia Island
[Vonsenite] Massim Russo collection
        • Phlegrean Fields
          • Bacoli
[Vonsenite] Russo M. (2008): Zeolites from Campi Flegrei. Bollettino AIZ Series/Report, Vol. 31 (2008), 13-23. Publisher: Associazione Italiana Zeoliti onlus
[Vonsenite] Federico M. (1969): Vonsenite nel Piperno di Pianura (Campi Flegrei, Napoli). Per. Mineral., 38, 81-85; Aleksandrov S.M. [Александров С.М.] (1974): Geochemical peculiarities of the occurrences of endogenic borate mineralisation in Italy [Геохимические особенности проявления эндогенной боратной минерализации в Италии]. Geokhimiya, 10, 1440-1449 (in Russian).
[Vonsenite] Russo, M. (2008): Zeolites from Campi Flegrei, Bollettino AIZ Series/Report, Vol. 31 (2008), Publisher: Associazione Italiana Zeoliti onlus
      • Salerno Province
        • Nocera Inferiore
[Vonsenite] Del Caldo, A., Moro, C., Gramaccioli, C.M., Boscardin, M. (1973): Guida ai minerali. Fratelli Fabbri Editori, Milano, 208 pp.; Carati, M. (1988): I minerali degli inclusi metamorfosati nel Tufo Grigio Campano. Notiziario del Gruppo Mineralogico Geologico Napoletano, 18, 5-12; Russo, M. & Punzo, I. (2010 communication)
  • Latium
    • Frosinone Province
[Vonsenite] Mattias P.P. (1969): I minerali rinvenuti nelle cavità di una tefrite leucitica nella zona di Pofi (Frosinone). Per. Mineral., 38, 1, 87-108; Boscardin M. (1974): Informazioni di mineralogia italiana. 42) Minerali di Pofi (Frosinone). Notizie Gr. Mineral. Lombardo, 5, 2 (Giugno 1974), 30.
    • Rome Province
      • Campagnano di Roma
[Vonsenite] "Giorgio Bortolozzi (visual identification)"
[Vonsenite] Fornaseri, M., and Turi, B. (1969): Contributions to Mineralogy and Petrology 23, 244-256.
      • Monte Compatri
        • Laghetto
[Vonsenite] Stoppani, F.S. & Curti, E. (1982): I minerali del Lazio. Editoriale Olimpia, Firenze, 291 pp.
      • Rome
[Ludwigite] Bachechi F., Federico M., Fornaseri M. (1966) - Prima segnalazione di ludwigite e di magnesioferrite nelle geodi delle "pozzolane nere" di Corcolle (regione vulcanica dei Colli Albani). Periodico di Mineralogia – Roma p. 717, Bachechi F., Federico M., Fornaseri M. (1966) - La ludwigite e i minerali che l'accompagnano nelle geodi delle "pozzolane nere" di Corcolle (Tivoli, Colli Albani). Periodico di Mineralogia – Roma pp. 975-1022.
        • Osteria dell'Osa
[Vonsenite] A. Del caldo - Località mineralogiche consigliate: Le vulcaniti laziali: Notizie del Guppo Min. Lombardo - 1, March 1971, pp. 6-8 - (This publication later changed its name in Rivista Minealogica Italiana)
[Vonsenite] Gresta, S., Duronio, F., Mancinella D. (2002): Geositi e Sistema delle Aree Protette del Lazio: idee per la geoconservazione. Il Cercapietre. Not. del Gruppo Mineralogico Romano, 1-2: 48-55
        • Valleranello
[Vonsenite] Stoppani, F.S., Curti, E. (1982) I minerali del Lazio. Editoriale Olimpia, Firenze, 291 pp.
      • Sacrofano Caldera
        • Campagnano di Roma
[Vonsenite] Della Ventura, Bonazzi, Obertia and Ottolini, Am. Min. vol. 87 p. 739 (2002)
    • Viterbo Province
[Vonsenite] Carloni, L., Signoretti, E., (2002): Le sanadiniti di Bassano Romano. Distretto Vulcanico Sabatino. Il Cercapietre. Not. del Gruppo Mineralogico Romano, 1-2: 28-36
      • Làtera volcano
        • Gradoli
[Vonsenite] - Signoretti, E. & Bosco, P. (2001): Le cave di Gradoli e Onano. Il Cercapietre, 1/2-2001, 10-25
        • Onano
[Vonsenite] Cresta, S., Duronio, F., Mancinella, D. (2002): Geositi e sistema delle arre protette del Lazio: idee per la geoconservazione. Il Cercapietre, 1-2/2002, 48-55
        • Valentano
[Vonsenite] Burli, M., Caponera, I., Signoretti, E. (2007): Le "sanidiniti" di Monte Saliette (Valentano, VT). Il Cercapietre. Not. del Gruppo Mineralogico Romano, 1-2: 13-18
      • Montalto di Castro
        • Pietra Massa Locality
[Vonsenite] "Giorgio Bortolozzi (visual identification)"
      • Vico volcanic complex (Vico Lake)
[Vonsenite] American Mineralogist, Volume 86, pages 1066–1075, 2001
[Vonsenite] Della Ventura, G., Williams, C.T., Cabella, R., Oberti, R., Caprilli, E., Bellatreccia, F. (1999) Britholite-hellandite intergrowths and associated REE-minerals from the alkali-syenitic ejecta of the Vico volcanic complex (Latium, Italy): petrological implications bearing on REE mobility in volcanic systems. European Journal of Mineralogy, 11, 843-854; Oberti, R., Ottolini, L., Cámara, F., Della Ventura, G. (1999) Crystal structure of non-metamict Th-rich hellandite-(Ce) from Latium (Italy) and crystal chemistry of the hellandite-group minerals. American Mineralogist, 84, 913–921.
[Vonsenite] "Giorgio Bortolozzi (visual identification)"
[Vonsenite] Scherillo A. (1940): I proietti con minerali boriferi dei Vulcani Cimini. Per. Mineral., 11, 367-391; Stoppani F.S, Curti E. (1982): I minerali del Lazio. Editoriale Olimpia, Firenze, 291 pp.
[Vonsenite] AMI UK service
[Vonsenite] "Giorgio Bortolozzi (visual identification)"
[Vonsenite] Flavio G. Taricco collection
[Vonsenite] "Giorgio Bortolozzi (visual identification)"
[Vonsenite] American Mineralogist, Volume 91, pages 1170–-1177, 2006
[Vonsenite] Carlini, R., Signoretti, E., 2003. Località minori del vulcano Vicano: Villa S.Giovanni in Tuscia e Mazzocchio. Il Cercapietre. Not. del Gruppo Mineralogico Romano, 1-2: 33-41
  • Lombardy
    • Sondrio Province
      • Valtellina
        • Valfurva
          • Cedec Valley
[Ludwigite] Bedognè, F., Montrasio, A., Sciesa, E. (2006) I minerali della media-alta Valtellina, delle Orobie valtellinesi e della Val Poschiavo. Aggiornamenti sulle altre località della provincia di Sondrio. Bettini, Sondrio, 255 pp.
[Ludwigite] Bedognè,F,,Montrasio; A. & Sciesa;E. (2006): I minerali della media-alta Valtellina delle Orobie valtellinesi e della Val Poschiavo. Bettini, Sondrio, Italia, 255.
          • Zebrù Valley
[Ludwigite] Bedognè, F., Montrasio, A., Sciesa, E. (2006). I minerali della medio-alta Valtellina, delle Orobie valtellinesi e della val Poschiavo. Aggiornamenti sulle altre località della provincia di Sondrio. Tip. Bettini, Sondrio, 255 pp.
  • Piedmont
    • Torino Province
      • Canavese District
        • Léssolo
          • Cálea
[Ludwigite] "Le miniere di Brosso" I.Campostrini 2001 - ed. Museo Regionale Torino
  • Sardinia
    • Sassari Province
      • Anglona
[Vonsenite] "Giorgio Bortolozzi (visual identification)"
[Vonsenite] "Giorgio Bortolozzi (visual identification)"
[Vonsenite] Paolo Capitanio Collection
  • Sicily
    • Messina Province
      • Eolie Islands (Aeolian Islands)
        • Lipari
          • Lipari Island
            • Canneto
              • Punta Castagna
[Vonsenite] F. Brignoli self collected
          • Vulcano Island
[Vonsenite] PANICHI U. (1924): Contributo allo studio dei minerali dell'Isola di Vulcano. - Memorie della Società Italiana delle Scienze (detta dei XL) - serie 3 - 19, 3-55.
  • Umbria
    • Terni Province
      • San Venanzo
[Ludwigite] Meli R. (1997) - Giacimenti da non dimenticare: i minerali della vulcaniti di San Venanzo (Terni). Riv. Miner. Ital. 3, pag. 269-275
Japan
 
  • Honshu Island
    • Tohoku Region
      • Fukushima Prefecture
        • Kawamata
[Ludwigite] Alfredo Petrov collection
      • Iwate Prefecture
        • Kamaishi City
[Vonsenite] Watanabe & Ito (1954) Mineralogical Journal, 1, 84-88.
        • Miyako City
          • Kamineichi
[Ludwigite] Kato, A. (1973) Sakurai Koubutsu Hyohon, 39.; Watanabe et al (1963) Kotoite, Mg3(BO3)2, from the Neichi mine, Iwate prefecture, Japan. Proceedings of the Japan Academy, series B, 39, 164-169.
  • Kyushu Region
    • Miyazaki prefecture
      • Hinokage-cho
[Vonsenite] Minakawa and Adachi (1990) Chigaku Kenkyu, 39, 91-95
Kazakhstan
 
  • Almaty
    • Sarkand
      • Sayak Cu ore field
[Ludwigite] Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
North Korea
 
  • North Hwanghae Province
[Ludwigite] No reference listed
[Ludwigite] Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 323,370,376.
[Ludwigite] Watanabe, T. : Boron mineral resources in Korea (in: Geology and Mineral Resources of the Far East, University of Tokyo Press, 1969)
[Ludwigite] Watanabe, T. : Boron mineral resources in Korea (in: Geology and Mineral Resources of the Far East, University of Tokyo Press, 1969)
[Ludwigite] Watanabe, T. : Boron mineral resources in Korea (in: Geology and Mineral Resources of the Far East, University of Tokyo Press, 1969)
Norway
 
  • Troms
    • Kvæfjord (Kvaefjord)
      • Hinnøya
[Ludwigite] Bøe, P. (1997): Boratmineralet ludwigitt i høymetamorf marmor i Vesterålen. STEIN 24 (3), 130-136
Pakistan
 
  • Khyber Pakhtunkhwa (North-West Frontier Province)
    • Mansehra District
      • Kaghan Valley
        • Naran
[Ludwigite] Jan, M. Q., & Khan, M. A. (1996). Petrology of gem peridot from Sapat mafic-ultramafic complex, Kohistan, NW Himalaya. Geological Bulletin, University of Peshawar, 29, 17-26.; Moore, T. (2004): What's New in Minerals. Costa Mesa Show 2003. Mineralogical Record. 35 (2), 143-145
Peru
 
  • Junín Department
[Ludwigite] Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 323.
Romania
 
  • Bihor Co.
    • Nucet
[Ludwigite] Ş. Marincea: "Suanite in two boron-bearing magnesian skarns from Romania: data on a longtime ignored mineral species", Neues Jahrbuch für Mineralogie - Abhandlungen 182:183-192 (2006)
[Ludwigite] Ş. Marincea: "Suanite in two boron-bearing magnesian skarns from Romania: data on a longtime ignored mineral species", Neues Jahrbuch für Mineralogie - Abhandlungen 182:183-192 (2006); MARINCEA, S. (2000). The influence of Al on the physical and crystallographic properties of ludwigite in three Romanian occurrences. European Journal of Mineralogy, 12(4), 809-823.
  • Caraş-Severin Co.
    • Banat Mts
      • Moldova Nouă-Sasca Cu-Mo ore field
[Ludwigite] www.minerals-of-the-carpathians,2009
      • Ocna de Fier-Dognecea District
[Ludwigite] Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 323.; Marincea, S. (1999). Ludwigite from the type locality, Ocna de Fier, Romania; new data and review. The Canadian Mineralogist, 37(6), 1343-1362.; MARINCEA, S. (2000). The influence of Al on the physical and crystallographic properties of ludwigite in three Romanian occurrences. European Journal of Mineralogy, 12(4), 809-823.
[Ludwigite] Marincea, S. (1999). Ludwigite from the type locality, Ocna de Fier, Romania; new data and review. The Canadian Mineralogist, 37(6), 1343-1362.
[Ludwigite] Marincea, S. (1999). Ludwigite from the type locality, Ocna de Fier, Romania; new data and review. The Canadian Mineralogist, 37(6), 1343-1362.
[Ludwigite] Marincea, S. (1999). Ludwigite from the type locality, Ocna de Fier, Romania; new data and review. The Canadian Mineralogist, 37(6), 1343-1362.; Stefan Nicolescu (1996) - Excursion Guide. Field trip E1, Banat and Transylvanian Gold District, Romania. M&M 3, 3rd International Conference on Mineralogy and Museums, Budapest, Hungary, June 9 - 13, 1996, 60 pp
[Ludwigite] Marincea, S. (1999). Ludwigite from the type locality, Ocna de Fier, Romania; new data and review. The Canadian Mineralogist, 37(6), 1343-1362.
[Ludwigite] Marincea, S. (1999). Ludwigite from the type locality, Ocna de Fier, Romania; new data and review. The Canadian Mineralogist, 37(6), 1343-1362.
[Ludwigite] Marincea, S. (1999). Ludwigite from the type locality, Ocna de Fier, Romania; new data and review. The Canadian Mineralogist, 37(6), 1343-1362.
[Ludwigite] Mineralogical Magazine, Vol. 65(3), pp. 351–372
[Ludwigite] Marincea, S. (1999). Ludwigite from the type locality, Ocna de Fier, Romania; new data and review. The Canadian Mineralogist, 37(6), 1343-1362.; Stefan Nicolescu (1996) - Excursion Guide. Field trip E1, Banat and Transylvanian Gold District, Romania. M&M 3, 3rd International Conference on Mineralogy and Museums, Budapest, Hungary, June 9 - 13, 1996, 60 pp.
  • Cluj Co.
    • Masca Băişoara
      • Iara (Alsójára)
[Ludwigite] http://www.geoecomar.ro/website/publicatii/supliment2008/15.pdf; http://www.geoecomar.ro/website/publicatii/supliment2008/15.pdf ; MARINCEA, S. (2000). The influence of Al on the physical and crystallographic properties of ludwigite in three Romanian occurrences. European Journal of Mineralogy, 12(4), 809-823.
Russia
 
  • Eastern-Siberian Region
    • Prebaikalia (Pribaikal'e)
      • Irkutskaya Oblast'
        • Lake Baikal area
[Azoproite] Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow; Konev A A, Lesedeva V S, Kashaev A A, Ushchapovskaya Z F (1970) Azoproite, a new mineral of the ludwigite group, Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva 99, issue 2, 225-231
        • Zheleznogorsk (Korshunikha)
[Ludwigite] Mazurov, M.P., Grishina, S.N., Istomin, V.E., and Titov, A.T. (2007): Geology of Ore Deposits 49(4), 271-284.
[Ludwigite] American Mineralogist 42:582-583
[Vonsenite] [World of Stones 12:49]
        • Aldan
[Ludwigite] Schreyer, W., Pertsev, N.N., Medenbach, O., Burchard, M., and Dettmar, D. (1998) Pseudosinhalite: discovery of the hydrous MgAl-borate as a new mineral in the Tayozhnoye, Siberia, skarn deposit. Contributions to Mineralogy and Petrology: 133: 382-388.; Jambor, J.L., Pertsev, N.N., and Roberts, A.C. (1999) New mineral names. American Mineralogist: 84: 1195-1198.; USGS Open File Report 2005-1252: 23.; Seltmann, R., Soloviev, S., Shatov, V., Pirajno, F., Naumov, E., and Cherkasov, S. (2010) Metallogeny of Siberia: tectonic, geologic and metallogenic settings of selected significant deposits. Australian Journal of Earth Sciences: 57(6): 655-706.
[Vonsenite] Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 323.
      • Polar Yakutia
        • Dogdo River Basin
          • Tas-Khayakhtakh Range
[Ludwigite] Rudnev, V.V., Chukanov, N.V., Nechelyustov, G.N., Yamnova, N.A. (2007): Hydroxylborite, Mg3(BO3)(OH)3, a new mineral, and the isomorphous fluoborite-hydroxylborite series. Proceedings of the Russian Mineralogical Society, 136(1), 69-82.; Aleksandrov, S.M. (1998): Geochemistry of skarn and ore formation in dolomites. VSP (Utrecht, Tokyo), 300 pp.; 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
              • Izvestkovyi Stream
[Azoproite] E. Galuskin and N.N. Pertsev analytical data; Galuskina I.O., Kadiyski M., Armbruster T., Galuskin E.V., Pertsev N.N., Dzierzanowski P., Wrzalik R. (2008) A new natural phase in the system Mg2SiO4-Mg2BO3F-Mg2BO3(OH): composition, paragenesis and structure of OH-dominant pertsevite, - Eur. J. Mineral., 20, p. 951-964.
[Ludwigite] Pavel M. Kartashov data
      • Verkhoyansk
        • Yana River Basin
          • Dogdo river
[Ludwigite] W. Schreyer et al. (2003) Eur. Journ. Mineral. 15, 1007-1018
    • Transbaikalia (Zabaykalye)
      • Buriatia Republic (Buryatia)
        • Vitim Plateau
[Ludwigite] Lapis 29(1), 47 (2004); American Mineralogist, Volume 87, pages 1509–1513, 2002
  • Far-Eastern Region
    • Kamchatka Oblast'
      • Tolbachik volcano
[Marinaite] Chaplygin, I.V., Yudovskaya, M.A., Pekov, I.V., Zubkova, N.V., Britvin, S.N., Vigasina, M.F., Pushcharovsky, D.Y., Belakovskiy, D.I., Griboedova, I.G., Kononkova, N.N. and Rassulov, V.A. (2016): Marinaite, IMA 2016-021. CNMNC Newsletter No. 32, August 2016, page 917; Mineralogical Magazine: 80: 915–922
    • Khabarovskiy Kray
      • Dzhugdzhur Ridge
[Ludwigite] Galuskina, I. O., Kadiyski, M., Armbruster, T., Galuskin, E. V., Pertsev, N. N., Dzierzanowski, P., & Wrzalik, R. (2008). A new natural phase in the system Mg2SiO4Mg2BO3FMg2BO3 (OH): composition, paragenesis and structure of OH-dominant pertsevite. European Journal of Mineralogy, 20(5), 951-964.
    • Primorskiy Kray
      • Kavalerovo mining district
[Ludwigite] [MinRec 32:8]
  • Northern Region
    • Karelia Republic
      • Ladoga Region
[Ludwigite] Ivashchenko, V. I., Valkama, M., Sundblad, K., Golubev, A. I., & Alekseev, V. Y. (2011, September). New data on mineralogy and metallogeny of scarns in the Pitkyaranta ore region. In Doklady Earth Sciences (Vol. 440, No. 1, pp. 1307-1311). SP MAIK Nauka/Interperiodica; Aleksandrov, S. M., & Troneva, M. A. (2009). Composition and genesis of endogenous borates from the Pitkáranta ore field, Karelia. Geochemistry International, 47(9), 914-929.
  • Urals Region
    • Southern Urals
      • Chelyabinsk Oblast'
        • Kusinskii raion
          • Medvedevka
[Ludwigite] Pavel M. Kartashov data
South Africa
 
  • Mpumalanga Province
    • Ehlanzeni District
      • Barberton
        • Bon Accord
[Bonaccordite] [Trans.Geol.Soc.S.Afr.(1974) 77, 373; Nickel & Nichols, 1991 - "Mineral Reference Manual, p25]
Spain
 
  • Andalusia
    • Málaga
      • Igualeja
[Ludwigite] Curras, J. y Torres, J. (1992).Boletín de la Sociedad Española de Mineralogía, 15 (1), 319-322.
  • Extremadura
    • Badajoz
      • Burguillos del Cerro
[Vonsenite] Sanabria, R. and Calvo, M. (2002). Los yacimientos de magnetita de Burguillos del Cerro. Revista de Minerales, 2 (3), 4-25
Sweden
 
  • Dalarna
    • Falun
      • Svärdsjö
[Ludwigite]
    • Hedemora
[Ludwigite] No reference listed
[Ludwigite]
  • Uppland
    • Norrtälje
      • Söderby-Karl
[Ludwigite] No reference listed
      • Stabby ore field
[Ludwigite] Appel, P.W.U. and Brigatti, M. F. (1999): Ludwigite from central Sweden: new data and crystal structure refinement. Mineralogical Magazine. 63(4),511-518
  • Värmland
    • Filipstad
[Fredrikssonite] GFF (1983) 105, 335-340; P. Dunn; Nysten, P., Holtstam, D. and Jonsson, E. (1999) The Långban minerals. In Långban - The mines,their minerals, geology and explorers (D. Holtstam and J. Langhof, eds.), Swedish Museum of Natural History and Raster Förlag, Stockholm & Chr. Weise Verlag, Munich, pp. 89-183.
      • Nordmark district
        • Jakobsberg ore field
[Fredrikssonite] K.Gatedal
      • Nordmark Odal Field (Nordmarksberg)
[Ludwigite] Knut Edvard Larsen collection # 3913 (visually identified, ex- H. Fylling collection))
      • Persberg
[Ludwigite] Kjell Gatedal
      • Persberg district
[Ludwigite] Sandström, F., Lorin, T. & Strand, U. (2009): Geologi och mineralogi i Gåsgruvefältet, Filipstad. Litofilen. 26 (2): 16-38
[Ludwigite]
  • Västmanland
[Ludwigite] Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 323.
      • Kallmora
[Ludwigite] Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 369.
UK
 
  • Scotland
    • Highland
      • Isle of Skye
        • Broadford
          • Kilchrist
[Ludwigite]
          • Torrin
[Ludwigite] A. Livingstone: Minerals of Scotland, NMS Publications (2002)
USA
 
  • Alaska
    • Nome Borough
      • Seward Peninsula
[Azoproite] Aleksandrov, S. M., & Troneva, M. A. (2008). Heterovalent isomorphism in the magnesium-iron borates. Geochemistry International, 46(8), 800.
        • York Range
[Ludwigite] www.excaliburmineral.com.
  • Arizona
    • Pima Co.
      • Santa Catalina Mts
        • Oracle District (Control District; Old Hat District; Santa Catalina District)
          • Mount Bigelow
            • Leatherwood Mine group (Apache group)
[Ludwigite] Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 281.
  • California
    • Fresno Co.
      • Lakeshore
[Ludwigite] Canadian Minelalogist Vol.26, pp. 911-916 (1988)
      • Twin Lakes
        • Kaiser Ridge
[Ludwigite] Chesterman, C.W. (1959), Ludwigite from Fresno County, California (abstract): Geological Society of America Bulletin: 70: 1712-1713; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 246; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 236.
        • Lower Twin Lake
[Ludwigite] Vlisidid, A.C. and Schaller, W.T. (1974) The identity of paigeite with vonsenite, and chemical analysis of vonsenite, ludwigite and hulsite. Neues Jahrbuch für Mineralogie, Monatshefte 1974(3-4): 95-105; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 236, 237.
    • Kern Co.
      • Tehachapi Mts
[Ludwigite] Page, Lincoln Ridler (1946), Contact metamorphic deposits of Cassiterite in California: (abstract) Geological Society of America Bulletin 56: 1187; […American Mineralogist: 31: 202 (1946)]; Wiese, J.H. & L.R. Page (1946), Tin deposits of the Gorman District, Kern County, California: California Division Mines Report 42: 50; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 246, 330.
          • Lebec
            • Tejon Tin project (Gorman Tin project)
[Ludwigite] USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10033751.
[Ludwigite] Page, Lincoln Ridler (1946), Contact metamorphic deposits of Cassiterite in California: (abstract) Geological Society of America Bulletin 56: 1187; […American Mineralogist (1946): 31: 202]; Wiese, J.H. & L.R. Page (1946), Tin deposits of the Gorman district, Kern County, California: California Division Mines Report 42: 42(1): 36; Vlisidid, A.C. and Schaller, W.T. (1974) The identity of paigeite with vonsenite, and chemical analysis of vonsenite, ludwigite and hulsite. Neues Jahrbuch für Mineralogie, Monatshefte 1974(3-4): 99; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 236.; USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10110529.
    • Monterey Co.
      • Gabilan Range
[Ludwigite] Chesterman, C.W. (1966a), Vonsenite of Monterey County, California: American Mineralogist: 51: 261-262; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 236.
    • Riverside Co.
      • Crestmore
[Vonsenite] [micromounts@yahoogroups.com]
          • Sky Blue Hill
[Ludwigite] AmMin 26:352-381
[Ludwigite] Woodford, A.O., Crippen, R.A., and Garner, K.B. (1941) Section Across Commercial Quarry, Crestmore, California. American Mineralogist: 26: 366.
[Ludwigite] Woodford, A.O., Crippen, R.A., and Garner, K.B. (1941) Section Across Commercial Quarry, Crestmore, California. American Mineralogist: 26: 366.
      • Jurupa Valley
        • Jurupa Mts
[Ludwigite] Cooney, R.L. (1956), The mineralogy of the Jensen and Henshaw quarries near Riverside, California: Unpublished Master’s thesis, University of California at Los Angeles: 32; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 236; Devito, F. and Ordway, A. (1984), The Jensen Quarry, Riverside County, California. Mineralogical Record: 15(5): 273-290.
      • Riverside
[Ludwigite] Am. Min 26:351-381, 1941
[Vonsenite] Eakle, A.S. (1920), Vonsenite; a preliminary note on a new mineral from Riverside, California, American Mineralogist: 5: 141-143; Vlisidid, A.C. and Schaller, W.T. (1974) The identity of paigeite with vonsenite, and chemical analysis of vonsenite, ludwigite and hulsite. Neues Jahrbuch für Mineralogie, Monatshefte 1974(3-4): 95-105; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 236.
    • San Bernardino Co.
      • Bloomington
[Ludwigite] Cooney, R.L. (1956), The mineralogy of the Jensen and Henshaw quarries near Riverside, California: Unpublished Master’s thesis, University of California at Los Angeles: 32; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 237.
      • Cave Mountain
        • Cave Canyon District
[Ludwigite] Lamey, Carl Arthur (1961), Contact metasomatic iron deposits of California: Geological Society of America Bulletin: 72: 673; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 246; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 237.
      • Lava Bed Mts
        • Lava Beds District (Newberry District)
          • Iron Ridge
[Ludwigite] Lamey, Carl Arthur (1961), Contact metasomatic iron deposits of California: Geological Society of America Bulletin: 72: 673; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 237.
  • Idaho
    • Lemhi Co.
[Ludwigite] Micro Probe, Nov 2001, pages 16-19
[Ludwigite] Ream, Lanny R. 2004. Idaho Minerals, 2nd edition, Revised and Updated
[Ludwigite] Ream, Lanny R. 2004. Idaho Minerals, 2nd edition, Revised and Updated
        • Quartzite Canyon
[Ludwigite] Ream, Lanny R. 2004. Idaho Minerals, 2nd edition, Revised and Updated
  • Michigan
    • Keweenaw Co.
[Vonsenite] Mineralogy of Michigan (2004) Heinrich & Robinson
  • Montana
    • Deer Lodge Co.
      • Georgetown District (Southern Cross District; Cable District)
[Ludwigite] Rob Lavinsky specimen
    • Granite Co.
      • Philipsburg District (Flint Creek District)
        • Franklin Hill Iron Deposit (Tarriff; Courtney Manganiferous Iron Deposit; Courtney Prospect)
[Ludwigite] Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
[Ludwigite] Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 323.
    • Lewis and Clark Co.
      • Boulder Mountains Area
[Ludwigite] Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 323.
  • Nevada
    • Lincoln Co.
      • Bristol and Jackrabbit Districts
[Ludwigite] NBMG Spec. Pub. 31 Minerals of Nevada
[Ludwigite] Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 323.
[Ludwigite] American Mineralogist 10:137-139
    • Lyon Co.
      • Singatse Range
        • Yerington District
          • Ludwig
[Ludwigite] NBMG Spec. Pub. 31 Minerals of Nevada
    • Mineral Co.
      • Bell District
[Ludwigite] Martin Jensen (2011) Minerals of the Blue Bird Mine, Mineral County, Nevada. Mineral News, 27, #8, 1-6.
[Ludwigite] NBMG Spec. Pub. 31 Minerals of Nevada
  • New York
[Vonsenite] American Mineralogist (1960): 45: 439.
      • St. Lawrence Co. Magnetite District
        • Clifton
[Vonsenite] George Robinson & Steven Chamberlain (2007) Gazetteer of major New York State mineral localities. Rocks & Minerals, 82, #6, 472-483.
[Vonsenite] NY State Museum spec. no. 13889; George Robinson & Steven Chamberlain (2007) Gazetteer of major New York State mineral localities. Rocks & Minerals, 82, #6, 472-483.; B.F. Leonard and A.F. Buddington (1964) Ore deposits of the St. Lawrence County magnetite district, northwest Adirondacks, New York. USGS Professional Paper 377
  • Utah
    • Beaver Co.
      • Beaver Lake Mts
        • Beaver Lake District
[Ludwigite] UGMS Bull 117 Minerals and Mineral Localities of Utah
    • Salt Lake Co.
[Ludwigite] UGMS Bull 117 Minerals and Mineral Localities of Utah; Hanson, S.L., A.U. Falster & W.B. Simmons (2014), Contact Metamorphic Minerals from the Alta Aureole, Central Wasatch Mountains, Utah, a presentation before the 41st. Rochester Mineralogical Symposium, April 25, 2014.
      • Wasatch Mts
        • Big Cottonwood District
          • Brighton
[Ludwigite] UGMS Bull 117 Minerals and Mineral Localities of Utah
[Ludwigite] UGMS Bull 117 Minerals and Mineral Localities of Utah
[Ludwigite] Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 323.; Calkins, F. C.; Butler, B. S.; Heikes, V. C. (1943) Geology and ore deposits of the Cottonwood-American Fork area, Utah, with sections on history and production. USGS Professional Paper: 201
[Ludwigite] UGMS Bull 117 Minerals and Mineral Localities of Utah
        • Little Cottonwood District (Alta District)
          • Little Cottonwood Canyon
            • Dromedary Peak
[Ludwigite] UGMS Bull 117 Minerals and Mineral Localities of Utah
[Ludwigite] UGMS Bull 117 Minerals and Mineral Localities of Utah
[Ludwigite] Calkins, F. C.; Butler, B. S.; Heikes, V. C. (1943) Geology and ore deposits of the Cottonwood-American Fork area, Utah, with sections on history and production. USGS Professional Paper: 201
[Ludwigite] Calkins, F. C.; Butler, B. S.; Heikes, V. C. (1943) Geology and ore deposits of the Cottonwood-American Fork area, Utah, with sections on history and production. USGS Professional Paper: 201
    • Wasatch Co.
[Ludwigite] Field, V.W. (1917) American Mineralogist, 2, #7, 92-93
  • Washington
    • Snohomish Co.
      • Darrington
        • Jumbo Mountain
[Ludwigite] Minerals of Washington, Bart Cannon, 1975; Aleksandrov, S. M. (2005). Genesis and Composition of Borate and Sulfide Mineralization in the Mount Jumbo Dunite, Snohomish County, Washington, United States. Geochemistry International, 43(3), 277-289.
    • Stevens Co.
      • Huckleberry Range
        • Deer Trail & Cedar Canyon Districts
          • Deer Trail District
            • Adams Mountain
[Ludwigite] Huntting, M. (1956): Inventory of Washington Minerals, Part II, Metallic Minerals, Vol. 1; Cannon, B. (1975): Minerals of Washington, p.48,72,75; Lasmanis, R. Et Al (1990): Metal Mines of Washington-Preliminary Report
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