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About NagyágiteHide

Nagyág (now Săcărâmb) in the 19th century

Săcărâmb, Deva, Hunedoara, Romania
1 - 1½
Specific Gravity:
7.35 - 7.49
Crystal System:
After the Hungarian name (Nagyág) of the type locality (Săcărâmb, Romania).
The possible Bi analogue is coded as 'UM1986-39-S:AuBiPbTe'.

Classification of NagyágiteHide

Approved, 'Grandfathered' (first described prior to 1959)

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
H : Sulfosalts of SnS archetype
B : With Cu, Ag, Fe, Sn and Pb

11 : AmBnXp, with (m+n):p = 2:3

5 : Sulphosalts - Sulpharsenites and Sulphobismuthites (those containing Sn, Ge,or V are in Section 6)
3 : Sulpharsenites etc. of Au

Physical Properties of NagyágiteHide

Blackish lead-grey
1 - 1½ on Mohs scale
VHN100=60 - 94 kg/mm2 - Vickers
Perfect on {010}, excellent on {101}.
7.35 - 7.49 g/cm3 (Measured)    7.29 g/cm3 (Calculated)

Optical Data of NagyágiteHide

Weak but distinct
400nmR1=46.4%R2= 48.4%
420nmR1=45.4%R2= 47.4%
440nmR1=44.5%R2= 46.7%
460nmR1=43.6%R2= 45.9%
480nmR1=42.9%R2= 45.1%
500nmR1=42.1%R2= 44.2%
520nmR1=41.3%R2= 43.3%
540nmR1=40.5%R2= 42.4%
560nmR1=39.8%R2= 41.6%
580nmR1=39.2%R2= 40.9%
600nmR1=38.7%R2= 40.3%
620nmR1=38.3%R2= 39.8%
640nmR1=37.8%R2= 39.2%
660nmR1=37.2%R2= 38.6%
680nmR1=36.6%R2= 37.8%
700nmR1=36.0%R2= 37.2%

Reflectance graph
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 48.4%.
R1 shown in black, R2 shown in red
Colour in reflected light:
Pale grey

Chemical Properties of NagyágiteHide

Common Impurities:

Crystallography of NagyágiteHide

Crystal System:
Class (H-M):
2/m - Prismatic
Space Group:
Cell Parameters:
a = 4.220(1) Å, b = 4.176(1) Å, c = 15.119(3) Å
β = 95.42(3)°
a:b:c = 1.011 : 1 : 3.62
Unit Cell V:
265.25 ų (Calculated from Unit Cell)
Thin {010} tabular crystals, commonly bent. Also granular.
Multiple twinning on (001).

Crystallographic forms of NagyágiteHide

Crystal Atlas:
Image Loading
Click on an icon to view
Nagyagite no.2 - Goldschmidt (1913-1926)
Nagyagite no.5 - Goldschmidt (1913-1926)
3d models and HTML5 code kindly provided by www.smorf.nl.

Edge Lines | Miller Indices | Axes

Opaque | Translucent | Transparent

Along a-axis | Along b-axis | Along c-axis | Start rotation | Stop rotation

X-Ray Powder DiffractionHide

Powder Diffraction Data:
3.023 (100)
2.829 (80)
2.431 (40)
2.081 (50)
1.823 (30)
1.710 (30)
1.511 (40)
1.473 (30)
Săcărâmb (Nagyág), Romania (ICDD 00-047-1755).

Type Occurrence of NagyágiteHide

Synonyms of NagyágiteHide

Other Language Names for NagyágiteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Rhodochrosite38 photos of Nagyágite associated with Rhodochrosite on mindat.org.
Quartz32 photos of Nagyágite associated with Quartz on mindat.org.
Gold10 photos of Nagyágite associated with Gold on mindat.org.
Sphalerite6 photos of Nagyágite associated with Sphalerite on mindat.org.
Sylvanite5 photos of Nagyágite associated with Sylvanite on mindat.org.
Brochantite3 photos of Nagyágite associated with Brochantite on mindat.org.
Alabandite2 photos of Nagyágite associated with Alabandite on mindat.org.
Linarite1 photo of Nagyágite associated with Linarite on mindat.org.
Malachite1 photo of Nagyágite associated with Malachite on mindat.org.
Gypsum1 photo of Nagyágite associated with Gypsum on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

2.HB.Carducciite(Ag2Sb2)Pb12(As,Sb)16S40Mon. 2/m : P21/b
2.HB.05aAikinitePbCuBiS3Orth. mmm (2/m 2/m 2/m) : Pnma
2.HB.05aFriedrichitePb5Cu5Bi7S18Orth. mm2
2.HB.05aGladitePbCuBi5S9Orth. mmm (2/m 2/m 2/m)
2.HB.05cJaskólskiiteCuxPb2+x(Sb,Bi)2-xS5 (x ~ 0.15)Orth. mmm (2/m 2/m 2/m)
2.HB.05aLindströmitePb3Cu3Bi7S15Orth. mmm (2/m 2/m 2/m)
2.HB.05bMeneghinitePb13CuSb7S24Orth. mmm (2/m 2/m 2/m)
2.HB.05aEmilitePb2.7Cu2.7Bi5.3S12Orth. mm2
2.HB.05aSalzburgitePb1.6Cu1.6Bi6.4S12Orth. mm2
2.HB.05aPaaritePb1.7Cu1.7Bi6.3S12Orth. mmm (2/m 2/m 2/m)
2.HB.10cEclarite(Cu,Fe)Pb9Bi12S28Orth. mmm (2/m 2/m 2/m) : Pnma
2.HB.10bGiessenitePb27Cu2(Bi,Sb)19S57Mon. 2/m
2.HB.10aKobellitePb22Cu4(Bi,Sb)30S69Orth. mmm (2/m 2/m 2/m) : Pnnm
2.HB.10aTintinaitePb22Cu4(Sb,Bi)30S69Orth. mmm (2/m 2/m 2/m) : Pnnm
2.HB.15BenavidesitePb4MnSb6S14Mon. 2/m : P21/b
2.HB.15JamesonitePb4FeSb6S14Mon. 2/m : P21/b
2.HB.20dBerryiteCu3Ag2Pb3Bi7S16Mon. 2/m : P21/m
2.HB.20cMuseumite[Pb2(Pb,Sb)2S8][(Te,Au)2]Mon. 2
2.HB.20eLitochlebiteAg2PbBi4Se8Mon. 2/m : P21/m

Fluorescence of NagyágiteHide

Other InformationHide

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

References for NagyágiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Klaproth, M.H. (1802) Chemische Untersuchung der siebenbürgischen Golderze, D. Blättererz, Beiträge zur chemischen Kenntniss der Mineralkörper, Dritter Band, Rottmann Berlin, 26-34.
Palache, Charles, Harry Berman & Clifford Frondel (1944) The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Volume I: Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, Inc., New York. 7th edition, revised and enlarged, 834pp.: 168-169.
Stumpfel, E.F. (1970) New electron probe and optical data on gold tellurides. American Mineralogist, 55, 808–814.
Stanley, C.J., Roberts, A.C. and Harris, D.C. (1994) New data for nagyagite. Mineralogical Magazine, 58, 479–482.
American Mineralogist (1995) 80: 188.
Lupulescu, M. (1997) Nagyagite; new data and considerations. Rev. Roum. Géol., 41, 29–36.
Effenberger, H., Paar, W.H., Topa, D., Culetto, F.J. and Giester, G. (1999) Towards the crystal structure of nagyagite, [Pb(Pb,Sb)S2][(Au,Te)]. American Mineralogist, 84, 669-676.
Shimizu, M. and Stanley, C. J. (2003) Re-study of nagyagite from Sacaramb, Romania. In: Mineral Exploration and Sustainable Development, edited by Eliopoulos, D. G. et al., 527-528, Millpress, Rotterdam, Netherlands.

Internet Links for NagyágiteHide

Localities for NagyágiteHide

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.
  • Catamarca Province
    • Belén Department
      • Farallón Negro
        • Agua de Dionisio mining district (YMAD)
Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990; Milka K. de Brodtkorb (2002) Las Especies Minerales de la Republica Argentina. Vol. 1 (elements, sulphides and sulphosalts). (Asociacion Mineralogica Argentina); DE BRODTKORB, Milka K. Precious metaltellurides and other Te-bearing minerals in different paragenesis of Argentina: A review. Rev. Asoc. Geol. Argent. [online]. 2009, vol.64, n.3, pp. 365-372.
Raúl J. Tauber Larry{s collection
  • Gelark'unik' Province (Geghark'unik')
    • Vardenis
Pavel M. Kartashov analytical data (2013)
  • Kotayk' Province
    • Hrazdan
Extra Lapis English No. 5 Gold; Kovalenker, V. A., Zalibekyan, M. A., Laputina, I. P., Malov, V. S., Sandomirskaya, S. M., Garas' ko, M. I., & Mkhitaryan, D. I. (1990). Sulfide-telluride mineralization of the Megradzor ore field, Armenia. International Geology Review, 32(7), 705-720.
  • Syunik' Province
    • Sisian (Sisavan; Karakilisa)
Kukulyan, M. A. (1988): Mineral composition of the Mardzhan ore deposit (Armenian SSR). Izvestiya Akademii Nauk Armyanskoi SSR, Nauki o Zemle 41(3), 22-32 (in Russian).
  • Western Australia
reflected light and SEM/EDS study
      • Kalgoorlie-Boulder
Noble, R.J. (2017), The Golden Mile, Australian Journal of Mineralogy, Vol 18 (1), June 2017 pp 11
Simpson, E.S. (1948), Minerals of Western Australia, Vol 1, pp40, 1948
Simpson, E.S. (1948), Minerals of Western Australia, Vol 2, pp 660, 1948
Simpson, E.S. (1948), Minerals of Western Australian, Vol 1, pp 40, 1948
Noble, R.J. (2017), The Golden Mile, Australian Journal of Mineralogy, Vol. 18 (1), pp 14, June 2017
Simpson, E.S. (1948), Minerals of Western Australia, Vol 3, pp 293, 1948
    • Laverton Shire
      • Mount Weld Station
Sung, Y.-H., et al., "Tellurides from the Sunrise Dam gold deposit, Yilgarn Craton, Western Australia: a new occurrence of nagyagite", Mineralogy & Petrology 91, 249-270(2007); Sung, Y. H., Brugger, J., Ciobanu, C. L., Pring, A., Skinner, W., & Nugus, M. (2009). Invisible gold in arsenian pyrite and arsenopyrite from a multistage Archaean gold deposit: Sunrise Dam, Eastern Goldfields Province, Western Australia. Mineralium Deposita, 44(7), 765-791.; Sung, Y. H. (2008). The nature of gold mineralization in the multistage Archean Sunrise Dam gold deposit, Eastern Yilgarn craton, Western Australia (Doctoral dissertation, University of South Australia).
    • Menzies Shire
      • Menzies
Kalgoorlie Miner newspaper (1898), Find at the Menzies United, 28/01/1899
  • Salzburg
    • Lungau
      • Murwinkel
        • Schellgaden
          • Gold mines
C. Auer: Lapis 20(11):11-20 (1995)
  • Balakan District
    • Belokan-Avar ore district
U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia
  • Pazardzhik Province
    • Panagyurishte (Panagurishte) Obshtina
      • Panagyurishte
Cioacă, M. E., Ivanov, D., Iorga-Pavel, A., Stoilov, V., Milu, V., Barbu, O., ... & Munteanu, M. (2018). Au-Ag-Bi mineralization at the Assarel porphyry copper deposit (Srednogorie metallogenic zone, Bulgaria). Advances of Geology in southeast European mountain belts, 276.
  • Sofia City Province
    • Chelopech
American Mineralogist (1966): 51: 29-36; Econ.Geol.: 83; 395-404; Cook, N. J., Ciobanu, C. L., & Bogdanov, K. (2002) Trace mineralogy of the Upper Cretaceous banatitic Magmatic and metallogenetic Belt, SE Europe. In 11th Quadrennial IAGOD symposium–Geocongress 2002, Windhoek, Namibia, July 2002. CD Volume of extended abstracts.
  • British Columbia
    • Revelstoke Mining Division
      • Gainer Creek
        • Ophir Lade Property
Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990; R. P Rothwell (1898) The Mineral Industry, its statistics, technology and trade. Vol. 6 Scientific Publishing Co., New York
  • Northwest Territories
    • Mackenzie District
      • Yellowknife
RIDLAND, G. C (1941): Mineralogy of the Negus and Con Mines, Yellowknife, Northwest
RIDLAND, G. C (1941): Mineralogy of the Negus and Con Mines, Yellowknife, Northwest
  • Ontario
    • Thunder Bay District
      • Moss Township
Dana 7:I:169.
  • Atacama
    • Chañaral Province
      • Potrerillos
Maksaev, V., Townley, B., Palacios, C., and Camus, F. (2007): Metallic ore deposits. In: Moreno, T., and Gibbons, W. (editors): The Geology of Chile. The Geological Society (London), pp. 414.
  • Xinjiang
    • Yili Hasake Autonomous Prefecture (Ili Kazakh Autonomous Prefecture)
      • Aletai Prefecture (Altay Prefecture)
        • Habahe Co. (Kaba Co.; Qaba Co.)
Huiliang Xiao, Yongguan Dong, Jiyuan Zhou, Henian Wang, Junfeng Ji, and Yu Zhao (2002): Mineral Deposits 21(suppl.), 715-718
Czech Republic
  • Liberec Region
    • Jablonec nad Nisou District
      • Jílové u Držkova
Small and microscopical minerals, Gold Shaft, Jílové, ČGO
  • Ústí nad Labem Region
    • Děčín District
      • Jílové
        • Jílové gold mining district
          • Bohuliby
Lapis 2000(4), 13-30
  • El Oro Province
    • Zaruma Canton
I. Vikentyev, R. Banda, A. Tsepin, V. Prokofiev, O. Vikentyeva (2005) Mineralogy and formation conditions of Portovelo-Zaruma gold-sulphide vein deposit, Ecuador. IGCP Project 486, 2005 Field Workshop, Kiten, Bulgaria, 14-19 September 2005
  • Red Sea
    • Eastern Desert
      • Qift area (Kift area; Coptos area)
Osman A. M., Pieczonka J., Piestrzyński A. 2002: Relationships between gold and tellurides in the El Sid gold deposit, Eastern Desert, Egypt. Mineralogia Polonica, vol. 33, no 2, 15-26
  • Viti Levu
Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990
      • Vatukoula
D. W. Pals and P. G. Spry "Telluride mineralogy of the low-sulfidation" Mineralogy and Petrology (2003) 79: 285–307
  • Upper Takutu-Upper Essequibo Region
    • Omai
      • Omai gold mine
Gabriel Voicu (1999) Geology, Geochemistry and Metallogeny of the Omai Gold Deposit, Guiana Shield, South America. PhD Thesis University of Quebec Chicoutimi.
  • Shizuoka
    • Shimoda City
      • Rendaiji
(unpublished species lists maintained by local collectors; needs confirmation)
  • East Kazakhstan
    • Kurshim
Глоба В.А. Месторождение Манка - новый геолого-промышленный тип месторождений золота. // Изв. НАН РК, Сер. геол. 2006, 5(403), с.20-28.
  • Chihuahua
    • Moris Municipality
      • Sahuayacan
Panczner (1987): 281 & 295.
Panczner (1987): 281, 295.
  • Bayanhongor Province
Władysław Zygo (2011) Tsagaan Tsakhir gold deposit: geology and mineralization, Mongolia. Slovakia.SGA Student Conference Mineral resources for the society Prague, April15 19,2011
New Zealand
  • Waikato Region
    • Thames-Coromandel District
      • Tararu
Palache, C., Berman, H., Frondel, C. (1944) Dana’s System of Mineralogy, (7th edition), vol. I, 169.
  • Hordaland
    • Bømlo
      • Lykling
Hoel, T. (1989): Bomlø (Sic!)- ein altes Goldvorkommen in Norwegen-neu entdeckt. Emser Heft. 10 (4), 45-49
Abildgaard, N. A. (2014): Om gullet på Bømlo..og min tid som gullgraver der. Stein. 41 (1), 4-13
  • Alba
Mineralogical Record 13:389-400
  • Hunedoara
    • Brad
      • Crișcior (Criștior; Zarándkristyor; Kristyor; Körösfalva; Kreischquell)
        • Brad Muşariu (Brád; Muşariu)
          • Mustari (Muszàri)
Econ.Geol.: 83; 395-404; Singer, D.A., Berger, V.I., and Moring, B.C. (2008): US Geological Survey Open-File Report 2008-1155.; Ciobanu, C., Cook, N., Mavrogenes, J., Damian, G., & Damian, F. (2007). (Au)-Pb-Te melts: Annealing-quenching experiments on samples from the Musariu deposit Brad district Romania.
    • Deva
      • Bocşa Mare
Andrei Ionuț Apopei, Gheorghe Damian, Nicolae Buzgar, Andrei Buzatu (2016): Mineralogy and geochemistry of Pb–Sb/As-sulfosalts from Coranda-Hondol ore deposit (Romania) — Conditions of telluride deposition. Ore Geology Reviews 72, 857-873.
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: 755; Lapis (1989): 9: 8; American Mineralogist (1995): 80: 188.; Econ.Geol.: 83; 395-404; Marcoux, E., Grancea, L., Lupulescu, M., & Milési, J. (2002). Lead isotope signatures of epithermal and porphyry-type ore deposits from the Romanian Carpathian Mountains. Mineralium Deposita, 37(2), 173-184.; Cook, N. J., Ciobanu, C. L., Capraru, N., Damian, G., & Cristea, P. (2005). Mineral assemblages from the vein salband at Sacarimb, Golden Quadrilateral, Romania: II. Tellurides. Geokhimiia, Mineralogiia i Petrologiia, 43, 56-63.; Simon, G., Alderton, D. H. M., Stumpfl, E. F., & Bleser, T. (1995). Tellurantimony in Romania: first occurrences in Europe. Mineralogy and Petrology, 53(1-3), 115-124.
  • Värmland County
    • Arvika
      • Glava
Scherbina, A. S. (1941): The gold-rich chalcocite-bornite deposit of Glava in Vermland, Sweden, and its geological setting. Neues Jahrb. Mineral., Geol., Beilage-Band, 76A, 377-458.
  • Valais
    • Simplon
Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 193.
  • Sughd
Rustam Koneev, Evgeniy Ignatikov, Arpay Turesebekov, Umid Aripov, Rustam Khalmatov, Obidjon Kodirov, Miraziz Usmanov (2005) Gold ore deposits of Uzbekistan: Geochemistry and nanomineralogy of tellurium and selenium. IGCP Project 486, 2005 Field Workshop, Kiten, Bulgaria, 14-19 September 2005; GEOCHMISTRY, MINERALOGY AND PETROLOGY • 4 3 • SOFIA pp 69-74
  • Wales
    • Gwynedd
      • Dolgellau Gold Belt
        • Bontddu
BMS Database; R. E. Bevins (1988) Sixth Supplementary List of British Isles Minerals (Welsh). Mineralogical Magazine 52:121-124
  • Alaska
    • Matanuska-Susitna Borough
      • Willow Creek District
USGS OFR 98-598(Hawley,1998)
USGS OFR 98-598(Hawley,1998)
U.S. Geological Survey, 2008, Alaska Resource Data File (ARDF): U.S. Geological Survey Open-File Report 2008-1225.
U.S. Geological Survey, 2008, Alaska Resource Data File (ARDF): U.S. Geological Survey Open-File Report 2008-1225.
  • California
    • Calaveras Co.
      • Mother Lode Belt
        • Carson Hill District (Melones District)
          • Melones
            • Carson Hill Gold Mining Company Mines (Carson Hill Mines)
Whitney, J.D. (1865), Geological survey of California, Geology, 1, Report of progress and synopsis of the field work from 1860 to 1864: 263; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 276.
    • Trinity Co.
      • Klamath Mts
        • Preachers Peak
Hershey, Oscar H. (1899), The upper Coffee Creek mining district, California: Mining & Scientific Press: 79: 689; Osborne, H.Z. (1903), The Dorleska gold mine: Mining and Scientific Press: 7: 252; Stines, Norman S. (1907), The geology of the Coffee Creek mining district, California: Mining and Scientific Press: 95: 25-26; Palache, Charles, Harry Berman & Clifford Frondel (1944), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Volume I: 7th edition, revised and enlarged, 834pp.: 169.
  • Colorado
    • Boulder Co.
      • Gold Hill District
        • Gold Hill
Minerals of Colorado (1997) Eckel, E. B.
Minerals of Colorado (1997) Eckel, E. B.
Minerals of Colorado (1997) Eckel, E. B.
Minerals of Colorado (1997) E.B. Eckel
Minerals of Colorado (1997) E.B. Eckel
Minerals of Colorado (1997) Eckel, E. B.
      • Jamestown District
Minerals of Colorado (1997) Eckel, E. B.
Minerals of Colorado (1997) Eckel, E. B.
Minerals of Colorado (1997) Eckel, E. B.
Minerals of Colorado (1997) E.B. Eckel
    • Clear Creek Co.
      • Georgetown District
Minerals of Colorado (1997) Eckel, E. B.
      • Idaho Springs District
Minerals of Colorado (1997) Eckel, E. B.
    • Teller Co.
Minerals of Colorado (1997) Eckel, E. B.
  • Montana
    • Fergus Co.
      • Warm Springs District (Gilt Edge District; Gold Hill District; Maiden District)
        • Cone Butte Sub-District
Econ Geol (1994) 89:602-627
    • Madison Co.
      • Alder Gulch Mining District (Virginia City Mining District; Fairweather Mining District)
        • Summit
U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.; USGS Bull 574
      • Norwegian Mining District (Whitehall Mining District)
Mineralogical Magazine 1996 60 : 871-876
  • Nevada
    • Mineral Co.
      • Borealis District
        • Borealis mine
NBMG Spec. Pub. 31 Minerals of Nevada
  • New Hampshire
    • Rockingham Co.
      • Newington
        • Great Bay National Wildlife Refuge
ora K. Foley, Robert A. Ayuso, Joseph D. Ayotte, Denise L. Montgomery, and Gilpin R. Robinson, Jr. (2006): Geological Assessment of Cores from the Great Bay National Wildlife Refuge, New Hampshire (USGS Scientific Investigations Report 2006-5203).
  • New Mexico
    • Sierra Co.
      • Chloride District
        • Chloride
Minerals of New Mexico 3rd ed.
Northrop, Minerals of New Mexico, 3rd Rev. Ed., 1996
  • North Carolina
    • Cleveland Co.
      • Kings Mountain District
Dana 7:I:169.
Genth, F.A.,1891,The Minerals Of North Carolina;USGS Bulletion No.74
Genth,F.A and Kerr, W.C. 1881, Mineral and Mineral Localities of North Carolina , Geological Survey
    • Montgomery Co.
John E.Callahan,James R.Craig,Todd N.Solberg,Telluride Mineralization of the Southeastern United States,Southeastern Geology,V.35,No.3,Sep,1995,pg.139-151
  • Virginia
    • Spotsylvania Co.
      • Gold-Pyrite Belt
Henwood, W.J. (1871): Transactions of the Royal Geological Society of Cornwall 8(1), 371-384
  • Tashkent
    • Okhangaron District
Eleonora A. Dunin-Barkovskaya, Umid K. Aripov, L.A. Tsoy, M.A. Kim (2005) Mineralogical features and ore-forming conditions of goldbearing deposits of Uzbekistan. GEOCHMISTRY, MINERALOGY AND PETROLOGY 43 SOFIA pp 69-74
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