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Gratonite

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Formula:
Pb
 
9
As
 
4
S
 
15
System:TrigonalColour: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

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:2/E.15-30
Nickel-Strunz 10th (pending) edition ID: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
Dana 8th edition ID:3.3.2.1

3 : SULFOSALTS
3 : 3 <ø < 4
Hey's CIM Ref.: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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Type Occurrence of Gratonite

Type Locality:Excelsior Mine, Cerro de Pasco, Pasco province, Pasco department, Peru
Year of Discovery:1939

Occurrences of Gratonite

Geological Setting:Hydrothermal copper deposits

Physical Properties of Gratonite

Lustre: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 (measured):6.22(2) g/cm3
Density (calculated):6.17 g/cm3

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.
Crystal Atlas:
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Gratonite - {110}, {021}

About Crystal Atlas

The mindat.org Crystal Atlas allows you to view a selection of crystal drawings of real and idealised crystal forms for this mineral and, in certain cases, 3d rotating crystal objects. The 3d models and HTML5 code are kindly provided by www.smorf.nl.

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X-Ray Powder Diffraction:
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Radiation - Copper Kα
Data Set:
Horizontal Axis: ° to ° Vertical Axis: % Source Data: Filtered Data:
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:
Pb
 
9
As
 
4
S
 
15
Simplified for copy/paste:Pb9As4S15
Essential elements:As, Pb, S
All elements listed in formula:As, Pb, S
Common Impurities:Fe,Sb

Relationship of Gratonite to other Species

Common Associates:
TetrahedriteSphaleriteRealgarPyriteJordanite
HutchinsoniteEnargite
Related Minerals - Nickel-Strunz Grouping):

- +
2.JB.05Diaphorite
Ag
 
3
Pb
 
2
Sb
 
3
S
 
8
2.JB.10Cosalite
Pb
 
2
Bi
 
2
S
 
5
2.JB.15Freieslebenite
AgPbSbS
 
3
2.JB.15Marrite
AgPbAsS
 
3
2.JB.20Cannizzarite
Pb
 
4
Bi
 
6
S
 
13
2.JB.20Wittite
Pb
 
9
Bi
 
12
(S,Se)
 
27
2.JB.25aJunoite
Cu
 
2
Pb
 
3
Bi
 
8
(S,Se)
 
16
2.JB.25iNeyite
Ag
 
2
Cu
 
6
Pb
 
25
Bi
 
26
S
 
68
2.JB.25cNordströmite
CuPb
 
3
Bi
 
7
(Se
 
4
S
 
10
)
2.JB.25gNuffieldite
Cu
 
1.4
Pb
 
2.4
Bi
 
2.4
Sb
 
0.2
S
 
7
2.JB.25dProudite
CuPb
 
7.5
Bi
 
9.33
(S,Se)
 
22
2.JB.25hWeibullite
Pb
 
5
Bi
 
8
Se
 
7
S
 
11
2.JB.25bFelbertalite
Cu
 
2
Pb
 
6
Bi
 
8
S
 
19
2.JB.25jRouxelite
Cu
 
2
HgPb
 
23
Sb
 
27
S
 
65.5
2.JB.25fÁngelaite
Cu
 
2
AgPbBiS
 
4
2.JB.25iCuproneyite
Cu
 
7
Pb
 
27
Bi
 
25
S
 
68
2.JB.30aGeocronite
Pb
 
14
(Sb,As)
 
6
S
 
23
2.JB.30aJordanite
Pb
 
14
(As,Sb)
 
6
S
 
23
2.JB.30bKirkiite
Pb
 
10
Bi
 
3
As
 
3
S
 
19
2.JB.30cTsugaruite
Pb
 
4
As
 
2
S
 
7
2.JB.35cPillaite
Pb
 
9
Sb
 
10
S
 
23
ClO
 
0.5
2.JB.35aZinkenite
Pb
 
9
Sb
 
22
S
 
42
2.JB.35bScainiite
Pb
 
14
Sb
 
30
S
 
54
O
 
5
2.JB.35dPellouxite
(Cu,Ag)Pb
 
10
Sb
 
12
S
 
27
O(Cl,S)
 
0.6
2.JB.35fTubulite
Ag
 
2
Pb
 
22
Sb
 
20
S
 
53
2.JB.35eChovanite
Pb
 
15-2x
Sb
 
14+2x
S
 
36
O
 
x
(x ~ 0.2)
2.JB.40bAschamalmite
Pb
 
6
Bi
 
2
S
 
9
2.JB.40aBursaite
Pb
 
5
Bi
 
4
S
 
11
(?)
2.JB.40bEskimoite
Ag
 
7
Pb
 
10
Bi
 
15
S
 
36
2.JB.40aFizélyite
Ag
 
5
Pb
 
14
Sb
 
21
S
 
48
2.JB.40aGustavite
Ag
 
3
Pb
 
5
Bi
 
11
S
 
24
2.JB.40aLillianite
Pb
 
3-2x
Ag
 
x
Bi
 
2+x
S
 
6
2.JB.40cOurayite
Ag
 
3
Pb
 
4
Bi
 
5
S
 
13
2.JB.40aRamdohrite
(Cd,Mn,Fe)Ag
 
5.5
Pb
 
12
Sb
 
21.5
S
 
48
2.JB.40aRoshchinite
Ag
 
19
Pb
 
10
Sb
 
51
S
 
96
2.JB.40dSchirmerite
PbAgBi
 
3
S
 
6
- Pb
 
3
Ag
 
1.5
Bi
 
3.5
S
 
9
2.JB.40aTreasurite
Ag
 
7
Pb
 
6
Bi
 
15
S
 
32
2.JB.40aUchucchacuaite
AgMnPb
 
3
Sb
 
5
S
 
12
2.JB.40eUstarasite
Pb(Bi,Sb)
 
6
S
 
10
(?)
2.JB.40aVikingite
Ag
 
5
Pb
 
8
Bi
 
13
S
 
30
2.JB.40aXilingolite
Pb
 
3
Bi
 
2
S
 
6
2.JB.40bHeyrovskýite
Pb
 
10
AgBi
 
5
S
 
18
2.JB.40UM1988-05-S:AgBiCuHgPb
(Hg,Ag,Cu,Pb)
 
5
Pb
 
5
Bi
 
11
S
 
27
2.JB.40UM1988-06-S:AgBiCuHgPb
(Pb,Hg)
 
12
(Cu,Ag)
 
3
(Bi,Sb)
 
10
(S,Te)
 
27
2.JB.40aAndorite IV
Pb
 
18
Ag
 
15
Sb
 
47
S
 
96
2.JB.60Marrucciite
Hg
 
3
Pb
 
16
Sb
 
18
S
 
46
2.JB.65Vurroite
Pb
 
20
Sn
 
2
(Bi,As)
 
22
S
 
54
Cl
 
6
Related Minerals - Hey's Index Grouping:

- +
5.6.1Sartorite
PbAs
 
2
S
 
4
5.6.2Dufrénoysite
Pb
 
2
As
 
2
S
 
5
5.6.3Liveingite
Pb
 
9
As
 
13
S
 
28
5.6.4Baumhauerite
Pb
 
12
As
 
16
S
 
36
5.6.6Jordanite
Pb
 
14
(As,Sb)
 
6
S
 
23
5.6.7Fülöppite
Pb
 
3
Sb
 
8
S
 
15
5.6.8Zinkenite
Pb
 
9
Sb
 
22
S
 
42
5.6.9Plagionite
Pb
 
5
Sb
 
8
S
 
17
5.6.10Heteromorphite
Pb
 
7
Sb
 
8
S
 
19
5.6.11Launayite
CuPb
 
10
(Sb,As)
 
12
S
 
20
5.6.12Playfairite
Pb
 
16
Sb
 
18
S
 
43
5.6.13Semseyite
Pb
 
9
Sb
 
8
S
 
21
5.6.14Madocite
Pb
 
19
(Sb,As)
 
16
S
 
43
5.6.15Boulangerite
Pb
 
5
Sb
 
4
S
 
11
5.6.17Robinsonite
Pb
 
4
Sb
 
6
S
 
13
5.6.18Guettardite
PbAsSbS
 
4
5.6.19Twinnite
Pb
 
0.8
Tl
 
0.1
Sb
 
1.3
As
 
0.8
S
 
4
5.6.20Veenite
Pb
 
2
(Sb,As)
 
2
S
 
5
5.6.21Sorbyite
CuPb
 
9
(Sb,As)
 
11
S
 
26
5.6.22Geocronite
Pb
 
14
(Sb,As)
 
6
S
 
23
5.6.23Galenobismutite
PbBi
 
2
S
 
4
5.6.24Cosalite
Pb
 
2
Bi
 
2
S
 
5
5.6.25Cannizzarite
Pb
 
4
Bi
 
6
S
 
13
5.6.26Lillianite
Pb
 
3-2x
Ag
 
x
Bi
 
2+x
S
 
6
5.6.27Giessenite
Pb
 
27
Cu
 
2
(Bi,Sb)
 
19
S
 
57
5.6.28Platynite
5.6.29Xilingolite
Pb
 
3
Bi
 
2
S
 
6
5.6.30Weibullite
Pb
 
5
Bi
 
8
Se
 
7
S
 
11
5.6.31Wittite
Pb
 
9
Bi
 
12
(S,Se)
 
27
5.6.32Kirkiite
Pb
 
10
Bi
 
3
As
 
3
S
 
19
5.6.33Ustarasite
Pb(Bi,Sb)
 
6
S
 
10
(?)

Other Names for Gratonite

Other Languages:
German:Gratonit
Japanese:グラトン鉱
Simplified Chinese:细硫砷铅矿
Spanish:Gratonita

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 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

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Gratonite details from Handbook of Mineralogy (PDF)
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  • Localities for Gratonite

    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.
    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
    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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    Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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