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Terrywallaceite

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About TerrywallaceiteHide

Terry Wallace (Terrywallaceite)
Formula:
AgPb(Sb,Bi)3S6
Colour:
Black
Lustre:
Metallic
Hardness:
4
Specific Gravity:
6.005 (Calculated)
Crystal System:
Monoclinic
Name:
Named after Terry C. Wallace Jr., (b. June 30, 1956) a former professor of geosciences and mineral museum curator specializing in silver minerals at the University of Arizona for over 20 years. Wallace joined Los Alamos National Laboratory (LANL) in 2003 and now is the Principal Associate Director for science, technology, engineering, and educational activities at LANL.
Isostructural with:
This page provides mineralogical data about Terrywallaceite.


Classification of TerrywallaceiteHide

Approved
Approval Year:
2011

Physical Properties of TerrywallaceiteHide

Metallic
Transparency:
Opaque
Colour:
Black
Streak:
Black
Hardness:
Tenacity:
Brittle
Cleavage:
Distinct/Good
{010}
Parting:
none
Density:
6.005 g/cm3 (Calculated)

Optical Data of TerrywallaceiteHide

Type:
Anisotropic
Anisotropism:
weak anisotropy (gray with bluish tint to bluish black in air)
Bireflectance:
weak bireflectance
Colour in reflected light:
grayish white
Pleochroism:
Weak
Comments:
weak pleochroism (white to pale gray)

Chemical Properties of TerrywallaceiteHide

Formula:
AgPb(Sb,Bi)3S6
IMA Formula:
AgPb(Sb,Bi)3S6

Crystallography of TerrywallaceiteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Setting:
P21/c
Cell Parameters:
a = 6.9764(4) Å, b = 19.3507(10) Å, c = 8.3870(4) Å
β = 107.519(2)°
Ratio:
a:b:c = 0.361 : 1 : 0.433
Unit Cell V:
1,079.71 ų (Calculated from Unit Cell)
Z:
4
Twinning:
pervasive on (100)

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.939(18)
3.680(23)
3.369(100)
3.010(33)
2.911(58)
2.080(26)
2.043(20)
1.950(22)

Type Occurrence of TerrywallaceiteHide

General Appearance of Type Material:
lath-shaped, black, with striations parallel to the elongated direction (the c axis) and up to 0.5 mm long
Place of Conservation of Type Material:
Mineral Museum of the University of Arizona, catalogue number 19304, and the RRUFF project, deposition number R100007.
Geological Setting of Type Material:
Hydrothermal alteration and mineralization are believed to have taken place concurrently with the intrusion of late-stage volcanic domes and dikes
Associated Minerals at Type Locality:

Synonyms of TerrywallaceiteHide

Relationship of Terrywallaceite to other SpeciesHide

Other Members of this group:
Andorite IVPb18Ag15Sb47S96Mon. 2 : P2
Andorite VIAgPbSb3S6Orth. mm2 : Pmn21
AndreadiniiteCuHgAg7Pb7Sb24S48Mon. 2/m : P21/b
ArsenquatrandoriteAg17.6Pb12.8Sb38.1As11.5S96Mon. 2/m : P21/b
AschamalmitePb6Bi2S9Mon. 2/m
Clino-oscarkempffiteAg15Pb6Sb21Bi18S72Mon. 2/m : P21/b
ErzwiesiteAg8Pb12Bi16S40Orth. mmm (2/m 2/m 2/m) : Pbcn
EskimoiteAg7Pb10Bi15S36Mon.
FizélyiteAg5Pb14Sb21S48 Mon. 2/m
GustaviteAgPbBi3S6Orth. mmm (2/m 2/m 2/m)
HeyrovskýitePb6Bi2S9Orth. mmm (2/m 2/m 2/m) : Cccm
JasrouxiteAg16Pb4(Sb24As16)S72Tric. 1 : P1
LillianitePb3-2xAgxBi2+xS6Orth. mmm (2/m 2/m 2/m)
OscarkempffiteAg10Pb4(Sb17Bi9)S48Orth. mm2
OurayiteAg3Pb4Bi5S13Orth.
OyoniteAg3Mn2Pb4Sb7As4S24Mon. 2/m
RamdohritePb5.9Fe0.1Mn0.1In0.1Cd0.2Ag2.8Sb10.8S24Mon. 2/m
RoshchiniteAg19Pb10Sb51S96Orth.
SchirmeritePbAgBi3S6 - Pb3Ag1.5Bi3.5S9Orth.
StaročeskéiteAg0.70Pb1.60(Bi1.35Sb1.35)Σ2.70S6Orth. mmm (2/m 2/m 2/m) : Cmcm
TreasuriteAg7Pb6Bi15S32Mon.
UchucchacuaiteAgMnPb3Sb5S12Orth. mmm (2/m 2/m 2/m) : Pmmm
UstarasitePb(Bi,Sb)6S10 (?)
VikingiteAg5Pb8Bi13S30Mon. 2/m : B2/m
XilingolitePb3Bi2S6Mon.

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 TerrywallaceiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Yang, H., Pinch, W.W., Downs, R.T. and Evans, S.H. (2011): Terrywallaceite, IMA 2011-017. CNMNC Newsletter No. 10, October 2011, page 2552
Yang, H., Downs, R. T., Evans, S. H., & Pinch, W. W. (2013). Terrywallaceite, AgPb (Sb, Bi) 3S6, isotypic with gustavite, a new mineral from Mina Herminia, Julcani Mining District, Huancavelica, Peru. American Mineralogist, 98(7), 1310-1314.

Internet Links for TerrywallaceiteHide

Localities for TerrywallaceiteHide

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.
Czech Republic
 
  • Central Bohemia Region
Pažout, R. (2017): Lillianite homologues from Kutná Hora ore district, Czech Republic: a case of large-scale Sb for Bi substitution. Journal of Geosciences, 62, 37-57.
Pazout, R., Sejkora, J., & Srein, V. (2017). Bismuth and bismuth-antimony sulphosalts from Kutna Hora vein Ag-Pb-Zn ore district, Czech Republic. Journal of GEOsciences, 62(1), 59-76.
Peru (TL)
 
  • Huancavelica Department
    • Angaraes Province
      • Julcani District
        • Herminia Mine
          • Vein 14
Yang, H., Downs, R. T., Evans, S. H., & Pinch, W. W. (2013). Terrywallaceite, AgPb (Sb, Bi) 3S6, isotypic with gustavite, a new mineral from Mina Herminia, Julcani Mining District, Huancavelica, Peru. American Mineralogist, 98(7), 1310-1314
Mineral and/or Locality  
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