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Gratonite

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Formula:
Pb9As4S15
System:
Trigonal
Colour:
Dark lead-gray
Hardness:
Name:
For Louis Caryl Graton (1880-1970), Professor of Mining Geology, Harvard University.
This page provides mineralogical data about Gratonite.

Classification of Gratonite

Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
2.JB.55

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
J : Sulfosalts of PbS archetype
B : Galena derivatives, with Pb
3.3.2.1

3 : SULFOSALTS
3 : 3 <ø < 4
5.6.5

5 : Sulphosalts - Sulpharsenites and Sulphobismuthites (those containing Sn, Ge,or V are in Section 6)
6 : Sulpharsenites etc. of Pb alone
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First Recorded Occurrence of Gratonite

Year of Discovery:
1939

Occurrences of Gratonite

Geological Setting:
Hydrothermal copper deposits

Physical Properties of Gratonite

Metallic
Diaphaneity (Transparency):
Opaque
Colour:
Dark lead-gray
Streak:
Black
Hardness (Mohs):
Hardness (Vickers):
VHN100=130 - 146 kg/mm2
Hardness Data:
Measured
Tenacity:
Brittle
Density:
6.22(2) g/cm3 (Measured)    6.17 g/cm3 (Calculated)

Crystallography of Gratonite

Crystal System:
Trigonal
Class (H-M):
3m - Ditrigonal Pyramidal
Space Group:
R3m
Cell Parameters:
a = 17.758(14) Å, c = 7.807(6) Å
Ratio:
a:c = 1 : 0.44
Unit Cell Volume:
V 2,132.08 ų (Calculated from Unit Cell)
Z:
3
Morphology:
Prismatic crystals, massive.

Crystallographic forms of Gratonite

Crystal Atlas:
Image Loading
Click on an icon to view
Gratonite - {110}, {021}
3d models and HTML5 code kindly provided by www.smorf.nl.

Toggle
Edge Lines | Miller Indicies | Axes

Transparency
Opaque | Translucent | Transparent

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Along a-axis | Along b-axis | Along c-axis | Start rotation | Stop rotation
X-Ray Powder Diffraction:
Image Loading

Radiation - Copper Kα
Data Set:
Data courtesy of RRUFF project at University of Arizona, used with permission.

Optical Data of Gratonite

Type:
Anisotropic
Anisotropism:
Weak
Colour in reflected light:
White - slightly yellow as compared to galena
Pleochroism:
Weak

Chemical Properties of Gratonite

Formula:
Pb9As4S15
Essential elements:
All elements listed in formula:
Common Impurities:
Fe,Sb

Relationship of Gratonite to other Species

2.JB.05DiaphoriteAg3Pb2Sb3S8
2.JB.10CosalitePb2Bi2S5
2.JB.15FreieslebeniteAgPbSbS3
2.JB.15MarriteAgPbAsS3
2.JB.20CannizzaritePb4Bi6S13
2.JB.20WittitePb9Bi12(S,Se)27
2.JB.25aJunoiteCu2Pb3Bi8(S,Se)16
2.JB.25iNeyiteAg2Cu6Pb25Bi26S68
2.JB.25cNordströmiteCuPb3Bi7(Se4S10)
2.JB.25gNuffielditeCu1.4Pb2.4Bi2.4Sb0.2S7
2.JB.25dProuditeCuPb7.5Bi9.33(S,Se)22
2.JB.25hWeibullitePb5Bi8Se7S11
2.JB.25bFelbertaliteCu2Pb6Bi8S19
2.JB.25jRouxeliteCu2HgPb23Sb27S65.5
2.JB.25fÁngelaiteCu2AgPbBiS4
2.JB.25iCuproneyiteCu7Pb27Bi25S68
2.JB.30aGeocronitePb14(Sb,As)6S23
2.JB.30aJordanitePb14(As,Sb)6S23
2.JB.30bKirkiitePb10Bi3As3S19
2.JB.30cTsugaruitePb4As2S7
2.JB.35cPillaitePb9Sb10S23ClO0.5
2.JB.35aZinkenitePb9Sb22S42
2.JB.35bScainiitePb14Sb30S54O5
2.JB.35dPellouxite(Cu,Ag)Pb10Sb12S27O(Cl,S)0.6
2.JB.35fTubuliteAg2Pb22Sb20S53
2.JB.35eChovanitePb15-2xSb14+2xS36Ox (x ~ 0.2)
2.JB.40bAschamalmitePb6Bi2S9
2.JB.40aBursaitePb5Bi4S11 (?)
2.JB.40bEskimoiteAg7Pb10Bi15S36
2.JB.40aFizélyiteAg5Pb14Sb21S48
2.JB.40aGustaviteAg3Pb5Bi11S24
2.JB.40aLillianitePb3-2xAgxBi2+xS6
2.JB.40cOurayiteAg3Pb4Bi5S13
2.JB.40aRamdohrite(Cd,Mn,Fe)Ag5.5Pb12Sb21.5S48
2.JB.40aRoshchiniteAg19Pb10Sb51S96
2.JB.40dSchirmeritePbAgBi3S6 - Pb3Ag1.5Bi3.5S9
2.JB.40aTreasuriteAg7Pb6Bi15S32
2.JB.40aUchucchacuaiteAgMnPb3Sb5S12
2.JB.40eUstarasitePb(Bi,Sb)6S10 (?)
2.JB.40aVikingiteAg5Pb8Bi13S30
2.JB.40aXilingolitePb3Bi2S6
2.JB.40bHeyrovskýitePb10AgBi5S18
2.JB.40UM1988-05-S:AgBiCuHgPb(Hg,Ag,Cu,Pb)5Pb5Bi11S27
2.JB.40UM1988-06-S:AgBiCuHgPb(Pb,Hg)12(Cu,Ag)3(Bi,Sb)10(S,Te)27
2.JB.40aAndorite IVPb18Ag15Sb47S96
2.JB.60MarrucciiteHg3Pb16Sb18S46
2.JB.65VurroitePb20Sn2(Bi,As)22S54Cl6
5.6.1SartoritePbAs2S4
5.6.2DufrénoysitePb2As2S5
5.6.3LiveingitePb9As13S28
5.6.4BaumhaueritePb12As16S36
5.6.6JordanitePb14(As,Sb)6S23
5.6.7FülöppitePb3Sb8S15
5.6.8ZinkenitePb9Sb22S42
5.6.9PlagionitePb5Sb8S17
5.6.10HeteromorphitePb7Sb8S19
5.6.11LaunayiteCuPb10(Sb,As)12S20
5.6.12PlayfairitePb16Sb18S43
5.6.13SemseyitePb9Sb8S21
5.6.14MadocitePb19(Sb,As)16S43
5.6.15BoulangeritePb5Sb4S11
5.6.17RobinsonitePb4Sb6S13
5.6.18GuettarditePbAsSbS4
5.6.19Twinnite Pb0.8Tl0.1Sb1.3As0.8S4
5.6.20VeenitePb2(Sb,As)2S5
5.6.21SorbyiteCuPb9(Sb,As)11S26
5.6.22GeocronitePb14(Sb,As)6S23
5.6.23GalenobismutitePbBi2S4
5.6.24CosalitePb2Bi2S5
5.6.25CannizzaritePb4Bi6S13
5.6.26LillianitePb3-2xAgxBi2+xS6
5.6.27GiessenitePb27Cu2(Bi,Sb)19S57
5.6.28Platynite
5.6.29XilingolitePb3Bi2S6
5.6.30WeibullitePb5Bi8Se7S11
5.6.31WittitePb9Bi12(S,Se)27
5.6.32KirkiitePb10Bi3As3S19
5.6.33UstarasitePb(Bi,Sb)6S10 (?)

Other Names for Gratonite

Name in Other Languages:
German:Gratonit
Simplified Chinese:细硫砷铅矿
Spanish:Gratonita

Other Information

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 Gratonite

Reference List:
Palache, C. and Fisher (1939), American Mineralogist: 24: 136.

Palache, C. and Fisher (1940), American Mineralogist: 25: 255-270.

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: 397-398.

Zeitschrift für Kristallographie: 128: 321-338.

Roland, G. W. (1968): The system Pb-As-S. Composition and stability of jordanite. Mineralium Deposita 3, 249-260.

Internet Links for Gratonite

Localities for Gratonite

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 for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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.
Argentina
 
  • Mendoza
    • Las Heras Department
      • Uspallata
Schalamuk, I.B. et al (1994) Revista del Museo de La Plata
Brodtkorb, Milka K. de (2002) Las Especies Minerales de la República Argentina. Tomo I. (Asociación Mineralógica Argentina)
Canada
 
  • Ontario
    • Hastings Co.
      • Madoc area
        • Huntingdon Township
Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990
China
 
  • Yunnan Province
    • Nujiang Autonomous Prefecture
      • Lanping Co.
        • Baiyangping ore field
          • Western ore zone
Xiaohu Wang, Yucai Song, Zengqian Hou, Hongrui Zhang, Zhe Wang, Tianming Zhuang, Chong Zhang, and Tianfu Zhang (2011): Acta Petrologica et Mineralogica 30(3), 507-518
Xiaohu Wang, Yucai Song, Zengqian Hou, Hongrui Zhang, Zhe Wang, Tianming Zhuang, Chong Zhang, and Tianfu Zhang (2011): Acta Petrologica et Mineralogica 30(3), 507-518
Dominican Republic
 
  • Sánchez Ramírez Province
    • Cotuí
Kettler, R. M., Rye, R. O., Kesler, S. E., Meyers, P. A., Polanco, J., & Russell, N. (1992). Gold deposition by sulfidation of ferrous Fe in the lacustrine sediments of the Pueblo Viejo district (Dominican Republic): The effect of Fe–C–S diagenesis on later hydrothermal mineralization in a Maar-Diatreme complex. Chemical geology, 99(1), 29-50.
Germany
 
  • Baden-Württemberg
    • Black Forest
      • Lahr
        • Reichenbach
Lapis 21(12), 42 (1996)
    • Wiesloch
P. Ramdohr, (1980) The Ore Minerals and Their Intergrowths,2nd ed., Pergammon Press, pg 757. P. Ramdohr, Ore Mineralogy, 3rd ed., pg 1159
  • Saxony
    • Vogtland
      • Reichenbach
        • Limbach
Tröger, S. (2012): Der Steinbruch Reimersgrün im Sächsischen Vogtland. Lapis 37 (10), 32-39.
Ireland
 
  • Co. Tipperary
    • Moyne
Econ Geol (2005) 100:63-86
Isle of Man
 
  • Laxey
No reference listed
Japan
 
  • Honshu Island
    • Tohoku Region
      • Aomori Prefecture
        • Minami-Tsugaru-gun
          • Ikarigaseki
Minerals in Japan, p. 248 (Field Best Encyclopedia, vol. 15) ; Min.Mag. (1998) 62, 793-799
Namibia
 
  • Otjikoto Region (Oshikoto)
    • Tsumeb
Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990; Gebhard, G. (1999): Tsumeb II. A Unique Mineral Locality. GG Publishing, Grossenseifen, Germany
Peru
 
  • La Libertad Department
    • Santiago de Chuco Province
      • Quiruvilca District
Min.Rec. 28, #4 (1997)
  • Pasco department
    • Pasco province
[Amer.Min.(1939) 24, 136; www.johnbetts-fineminerals.com]
      • Simón Bolívar District
Mine is well know for Gratonite and I saw 20 foot benches of pyrite in the open pit. [Rock Currier]
Poland
 
  • Upper Silesia (Śląskie)
    • Bytom District (Beuthen)
P. Ramdohr, Ore Mineralogy, 3rd ed., pg 1128; Eligiusz Szełęg collection
Serbia
 
  • Podrinje District
    • Boranja orefield
      • Krupanj
Slobodan A. Radosavljević, Jovica N. Stojanović, Aleksandar M. Pačevski, Hg-bearing sphalerite from the Rujevac polymetallic ore deposit, Podrinje Metallogenic District, Serbia: Compositional variations and zoning, Chemie der Erde - Geochemistry, Volume 72, Issue 3, September 2012, Pages 237-244, ISSN 0009-2819, 10.1016/j.chemer.2011.12.003.
Spain
 
  • Andalusia
    • Huelva
      • Minas de Riotinto
        • Rio Tinto Mines (Riotinto Mines)
Calvo, M. et al.(1999). Bocamina (4), 50-86
Jean Francois Carpentier
Taiwan
 
  • Taiwan Province
    • New Taipei City
      • Ruifang District
        • Jinguashi Mine (Chinkuashih Mine)
Hwang, J. Y and Meyer, H O A (1982) The Mineral Chemistry and Genesis of the Chinkuashih ore deposits, Taiwan. Proceedings of the Geological Society of China 25:88-101
USA
 
  • Idaho
    • Lemhi Co.
      • Blue Wing District
        • Patterson
R&M 70:4 pp 242-263
  • Nevada
    • Eureka Co.
      • Lynn District
        • Elko
NBMG Spec. Pub. 31 Minerals of Nevada
Mineral and/or Locality  
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