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Buckhornite

Formula:
AuPb
 
2
BiTe
 
2
S
 
3
System:OrthorhombicColour:Black
Lustre:MetallicHardness:2½
This page provides mineralogical data about Buckhornite.

Classification of Buckhornite

IMA status:Approved
Strunz 8th edition ID:2/D.15-30
Nickel-Strunz 10th (pending) edition ID:2.HB.20b

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
Dana 8th edition ID:2.11.11.1

2 : SULFIDES
11 : AmBnXp, with (m+n):p = 2:3
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Type Occurrence of Buckhornite

Type Locality:Buckhorn Mine (Bigthing), Jamestown, Jamestown District, Boulder Co., Colorado, USA
Year of Discovery:1992

Physical Properties of Buckhornite

Lustre:Metallic
Colour:Black
Streak:Grey
Hardness (Mohs):2½

Crystallography of Buckhornite

Crystal System:Orthorhombic
Cell Parameters:a = 4.09Å, b = 12.24Å, c = 9.32Å
Ratio:a:b:c = 0.334 : 1 : 0.761
Unit Cell Volume:V 466.57 ų (Calculated from Unit Cell)

Chemical Properties of Buckhornite

Formula:
AuPb
 
2
BiTe
 
2
S
 
3
Essential elements:Au, Bi, Pb, S, Te
All elements listed in formula:Au, Bi, Pb, S, Te
Common Impurities:Cu

Relationship of Buckhornite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
2.HB.05aAikinite
PbCuBiS
 
3
2.HB.05aFriedrichite
Pb
 
5
Cu
 
5
Bi
 
7
S
 
18
2.HB.05aGladite
PbCuBi
 
5
S
 
9
2.HB.05aHammarite
Pb
 
2
Cu
 
2
Bi
 
4
S
 
9
2.HB.05cJaskólskiite
Pb
 
2+x
Cu
 
x
(Sb,Bi)
 
2-x
S
 
6
 (x = 0.2)
2.HB.05aKrupkaite
PbCuBi
 
3
S
 
6
2.HB.05aLindströmite
Pb
 
3
Cu
 
3
Bi
 
7
S
 
15
2.HB.05bMeneghinite
Pb
 
13
CuSb
 
7
S
 
24
2.HB.05aPekoite
PbCuBi
 
11
(S,Se)
 
18
2.HB.05aEmilite
Pb
 
2.7
Cu
 
2.7
Bi
 
5.3
S
 
12
2.HB.05UM2000-46-S:BiCuPb
Cu
 
0.33
Pb
 
0.33
Bi
 
7.67
S
 
12
2.HB.05aSalzburgite
Pb
 
1.6
Cu
 
1.6
Bi
 
6.4
S
 
12
2.HB.05UM1990-54-Se:BiCuPb
CuPb(Ni,Co)
 
0.3
Bi
 
3
Se
 
6
2.HB.05aPaarite
Pb
 
1.7
Cu
 
1.7
Bi
 
6.3
S
 
12
2.HB.10cEclarite
(Cu,Fe)Pb
 
9
Bi
 
12
S
 
28
2.HB.10bGiessenite
Pb
 
27
Cu
 
2
(Bi,Sb)
 
19
S
 
57
2.HB.10bIzoklakeite
Pb
 
27
(Cu,Fe,Ag)
 
2
(Sb,Bi)
 
19
S
 
57
2.HB.10aKobellite
Pb
 
22
Cu
 
4
(Bi,Sb)
 
30
S
 
69
2.HB.10aTintinaite
Pb
 
22
Cu
 
4
(Sb,Bi)
 
30
S
 
69
2.HB.15Benavidesite
Pb
 
4
(Mn,Fe)Sb
 
6
S
 
14
2.HB.15Jamesonite
Pb
 
4
FeSb
 
6
S
 
14
2.HB.20dBerryite
Pb
 
3
(Ag,Cu)
 
5
Bi
 
7
S
 
16
2.HB.20aNagyágite
Pb
 
5
Au(Te,Sb)
 
4
S
 
5-8
2.HB.20eWatkinsonite
Cu
 
2
PbBi
 
4
(Se,S,Te)
 
8
2.HB.20cMuseumite
Pb
 
5
AuSbTe
 
2
S
 
12
2.HB.20eIMA2009-036
Ag
 
2
PbBi
 
4
Se
 
8

Other Names for Buckhornite

Synonyms:
IMA1988-022
Other Languages:
German:Buckhornit
Russian:Букхорнит
Spanish:Buckhornita

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 Buckhornite

Reference List:New Mins. (1997), New Minerals 1990-1994.

Canadian Mineralogist: 30: 1039-1047.

Internet Links for Buckhornite

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

    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.
    (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.
    Armenia
     
    • Kotayk' Province
      • Hrazdon
    		extraLapis no. 2, Gold, p. 52
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Central Bohemia Region
        • Jílové (Eule)
          • Jílové Gold mining District
            • Bohuliby
    		Lapis 2000(4), 13-30
            • Studené (Kaltengrund)
    		Lapis 2000(4), 13-30
    USA
     
    • Colorado
      • Boulder Co.
        • Jamestown District
          • Jamestown
    		Minerals of Colorado (1997) Eckels, E. B.
    • Montana
      • Jefferson Co.
        • Whitehall District (Cardwell District)
    		Spry, P.G., Foster, F., Truckle, J.S., and Chadwick, T.H. (1997): Mineralogy and Petrology 59, 143-164.; Economic Geology,(1996) Vol. 91-3, pp.507-526
    Mineral and/or Locality
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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the 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 hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 26th Oct 2009 18:10:01