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Gratonite

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Cerro de Pasco, Alcides Carrión Province, Pasco Department, Peru
© Peter Haas

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Formula:
Pb
 
9
As
 
4
S
 
15
System:TrigonalColour:Dark lead-gray
Hardness:2½
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, Alcides Carrión Province, Pasco Department, Peru
Year of Discovery:1939

Physical Properties of Gratonite

Lustre:Metallic
Diaphaneity (Transparency):Opaque
Colour:Dark lead-gray
Streak:Black
Hardness (Mohs):2½
Hardness Data:Measured
Tenacity:Brittle

Crystallography of Gratonite

Crystal System:Trigonal
Cell Parameters:a = 17.7Å, c = 7.79Å
Ratio:a:c = 1 : 0.44
Unit Cell Volume:V 2,113.56 ų (Calculated from Unit Cell)
Crystal Atlas:
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Gratonite - {110}, {021}

About Crystal Atlas

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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. You need Java to see these. You can download Java for free - click here to download Java

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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: Peaks:
Data courtesy of RRUFF project at University of Arizona, used with permission.

Optical Data of Gratonite

Type:Anisotropic
Anisotropism:Weak

Chemical Properties of Gratonite

Formula:
Pb
 
9
As
 
4
S
 
15
Essential elements:As, Pb, S
All elements listed in formula:As, Pb, S
Common Impurities:Fe,Sb

Relationship of Gratonite to other Species

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.25Junoite
Cu
 
2
Pb
 
3
Bi
 
8
(S,Se)
 
16
2.JB.25Nordströmite
CuPb
 
3
Bi
 
7
(Se
 
4
S
 
10
)
2.JB.25Proudite
CuPb
 
7.5
Bi
 
9.33
(S,Se)
 
22
2.JB.25Felbertalite
Cu
 
2
Pb
 
6
Bi
 
8
S
 
19
2.JB.30Geocronite
Pb
 
14
(Sb,As)
 
6
S
 
23
2.JB.30Jordanite
Pb
 
14
(As,Sb)
 
6
S
 
23
2.JB.30Kirkiite
Pb
 
10
Bi
 
3
As
 
3
S
 
19
2.JB.35Pillaite
Pb
 
9
Sb
 
10
S
 
23
ClO
 
0.5
2.JB.35Zinkenite
Pb
 
9
Sb
 
22
S
 
42
2.JB.35Scainiite
Pb
 
14
Sb
 
30
S
 
54
O
 
5
2.JB.35Pellouxite
(Cu,Ag)Pb
 
10
Sb
 
12
S
 
27
O(Cl,S)
 
0.6
2.JB.40Andorite
PbAgSb
 
3
S
 
6
2.JB.40Aschamalmite
Pb
 
6
Bi
 
2
S
 
9
2.JB.40Eskimoite
Ag
 
7
Pb
 
10
Bi
 
15
S
 
36
2.JB.40Fizélyite
Pb
 
14
Ag
 
5
Sb
 
21
S
 
48
 ?
2.JB.40Gustavite
Ag
 
3
Pb
 
5
Bi
 
11
S
 
24
2.JB.40Lillianite
Pb
 
3
Bi
 
2
S
 
6
2.JB.40Ourayite
Ag
 
3
Pb
 
4
Bi
 
5
S
 
13
2.JB.40Ramdohrite
Ag
 
3
Pb
 
6
Sb
 
11
S
 
24
2.JB.40Roshchinite
Ag
 
19
Pb
 
10
Sb
 
51
S
 
96
2.JB.40Schirmerite
AgPb
 
2
Bi
 
3
S
 
7
2.JB.40Treasurite
Ag
 
7
Pb
 
6
Bi
 
15
S
 
32
2.JB.40Uchucchacuaite
AgMnPb
 
3
Sb
 
5
S
 
12
2.JB.40Vikingite
Ag
 
5
Pb
 
8
Bi
 
13
S
 
30
2.JB.40Xilingolite
Pb
 
3
Bi
 
2
S
 
6
2.JB.40Heyrovskýite
Pb
 
10
AgBi
 
5
S
 
18
2.JB.40Andorite IV
Pb
 
18
Ag
 
15
Sb
 
47
S
 
96
2.JB.40Andorite VI
PbAgSb
 
3
S
 
6
2.JB.45Galenobismutite
PbBi
 
2
S
 
4
2.JB.45Weibullite
Pb
 
5
Bi
 
8
Se
 
7
S
 
11
2.JB.45Angelaite
Cu
 
2
AgPbBiS
 
4
2.JB.50Neyite
Pb
 
7
(Cu,Ag)
 
2
Bi
 
6
S
 
17
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
 
3
As
 
4
S
 
9
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
Pb
 
22
Sb
 
26
S
 
61
5.6.12Playfairite
Pb
 
16
Sb
 
18
S
 
43
5.6.13Semseyite
Pb
 
9
Sb
 
8
S
 
21
5.6.14Madocite
Pb
 
17
Sb
 
16
S
 
41
5.6.15Boulangerite
Pb
 
5
Sb
 
4
S
 
11
5.6.17Robinsonite
Pb
 
4
Sb
 
6
S
 
13
5.6.18Guettardite
Pb(Sb,As)
 
2
S
 
4
5.6.19Twinnite
Pb(Sb,As)
 
2
S
 
4
5.6.20Veenite
Pb
 
2
(Sb,As)
 
2
S
 
5
5.6.21Sorbyite
Pb
 
17
(Sb,As)
 
22
S
 
50
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
Bi
 
2
S
 
6
5.6.27Giessenite
Cu
 
2
Pb
 
26
(Bi,Sb)
 
20
S
 
57
5.6.28 Platynite
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

German names:
Gratonit
Japanese names:
グラトン鉱
Spanish names:
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.

Internet Links for Gratonite

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  • Look for Gratonite on Wikipedia
  • Look for Gratonite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Gratonite in the Natural History Museum (London) online catalogue
  • Gratonite details from Handbook of Mineralogy (PDF)
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    Localities for Gratonite

    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.
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    (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
      • Uspallata
    Canada
     
    • Ontario
      • Hastings Co.
        • Huntingdon Township
          • Madoc
    		Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990
    Germany
     
    • Baden-Württemberg
      • Black Forest
        • Lahr
          • Reichenbach
    		Lapis 21(12), 42 (1996)
      • Heidelberg
        • Wiesloch
    		P. Ramdohr, Ore Mineralogy, 3rd ed., pg 1159
    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-Tsugara-gun
    		Minerals in Japan, p. 248 (Field Best Encyclopedia, vol. 15)
    Namibia
     
    • Otjikoto (Oshikoto) Region
      • Tsumeb
    		No reference listed
    Peru
     
    • La Libertad Department
      • Santiago de Chuco Province
        • Quiruvilca District
    		Min.Rec. 28, #4 (1997)
    • Pasco Department
      • Alcides Carrión Province
    [Amer.Min.(1939) 24, 136; www.johnbetts-fineminerals.com]
    Poland
     
    • Upper Silesia (Śląskie)
      • Bytom (Beuthen) District
    		P. Ramdohr, Ore Mineralogy, 3rd ed., pg 1128
    Spain
     
    • Andalusia
      • Huelva
    		[MinRec 27:284]
    Taiwan
     
    • Taiwan Province
      • Taipei Co.
        • Jui-Fang Town
    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
    Google
     
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