Barikaite
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Formula:
Ag3Pb10(Sb8As11)S40
Colour:
greyish black
Lustre:
Metallic
Specific Gravity:
5.34 (Calculated)
Crystal System:
Monoclinic
Member of:
Name:
For the type locality.
Classification of Barikaite
Approved
Physical Properties of Barikaite
Metallic
Transparency:
Opaque
Colour:
greyish black
Streak:
dark gray
Hardness:
VHN50=200 kg/mm2 - Vickers
Tenacity:
Brittle
Cleavage:
None Observed
Parting:
none
Fracture:
Irregular/Uneven
Density:
5.34 g/cm3 (Calculated)
Optical Data of Barikaite
Type:
Anisotropic
Anisotropism:
distinct, in shades of grey.
Bireflectance:
distinct bireflectance in grey tones,
Colour in reflected light:
greyish white
Internal Reflections:
none
Chemical Properties of Barikaite
Formula:
Ag3Pb10(Sb8As11)S40
IMA Formula:
Ag3Pb10(Sb8As11)Σ19S40
Crystallography of Barikaite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Cell Parameters:
a = 8.519 Å, b = 8.057 Å, c = 24.905 Å
β = 98.926°
β = 98.926°
Ratio:
a:b:c = 1.057 : 1 : 3.091
Unit Cell V:
1,688.72 ų (Calculated from Unit Cell)
Z:
1
Comment:
P21/n
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
3.835 | (62) |
3.646 | (100) |
3.441 | (60) |
3.408 | (62) |
3.117 | (52) |
3.008 | (43) |
2.972 | (66) |
2.769 | (90) |
Comments:
From Type Description.
Type Occurrence of Barikaite
General Appearance of Type Material:
anhedral grains
Place of Conservation of Type Material:
Department of Materials Engineering and Physics, University of Salzburg, Salzburg, Austria, specimen number 15005
Geological Setting of Type Material:
gold-rich volcanogenic massive sulfide deposit of Cretaceous age. Greenschist metamorphism and deformation in the form of shear zones overprinted the original synvolcanic stratiform textures
Associated Minerals at Type Locality:
Synonyms of Barikaite
Relationship of Barikaite to other Species
Member of:
Other Members of this group:
Argentobaumhauerite | Ag1.5Pb22As33.5S72 | Tric. 1 : P1 |
Argentodufrénoysite | Ag3Pb26As35S80 | Tric. 1 : P1 |
Argentoliveingite | AgxPb40-2xAs48+xS112 | Tric. 1 : P1 |
Baumhauerite | Pb12As16S36 | Tric. 1 : P1 |
Bernarlottiite | Pb6(As5Sb3)S18 | Tric. 1 : P1 |
Boscardinite | TlPb4(Sb7As2)S18 | Tric. 1 : P1 |
Carducciite | (Ag2Sb2)Pb12(As,Sb)16S40 | Mon. 2/m : P21/b |
Dekatriasartorite | TlPb58As97S204 | Mon. 2/m : P21/b |
Dufrénoysite | Pb2As2S5 | Mon. 2 : P21 |
Écrinsite | AgTl3Pb4As11Sb9S36 | Tric. 1 : P1 |
Enneasartorite | Tl6Pb32As70S140 | Mon. 2/m : P21/b |
Guettardite | PbAsSbS4 | Mon. 2/m : P21/b |
Hendekasartorite | Tl2Pb48As82S172 | Mon. 2/m : P21/b |
Heptasartorite | Tl7Pb22As55S108 | Mon. 2/m : P21/b |
Hyršlite | Pb8As10Sb6S32 | Mon. 2 : P21 |
Incomsartorite | Tl6Pb144As246S516 | Mon. 2/m |
Liveingite | Pb9As13S28 | Mon. |
Parapierrotite | TlSb5S8 | Mon. m |
Philrothite | TlAs3S5 | Mon. 2/m : P21/b |
Pierrotite | Tl2(Sb,As)10S16 | Orth. mm2 : Pna21 |
Polloneite | AgPb46As26Sb23S120 | Mon. 2 : P21 |
Rathite | Ag2Pb12-xTlx/2As18+x/2S40 | Mon. 2/m : P21/b |
Sartorite | PbAs2S4 | Mon. 2/m : P21/m |
Twinnite | Pb0.8Tl0.1Sb1.3As0.8S4 | Mon. 2/m |
Veenite | Pb2(Sb,As)2S5 | Mon. 2 : P21 |
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 Barikaite
Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Topa, D., Makovicky, E., Putz, H., Zagler, G. and Tajjedin, H. (2013) Barikaite, IMA 2012-055. CNMNC Newsletter No. 15, February 2013, page 4; Mineralogical Magazine, 77, 1-12.
Topa, D., Makovicky, E., Tajedin, H., Putz, H., Zagler, G. (2013): Barikaite, Pb10Ag3(Sb8As11)sum19S40, a new member of the sartorite homologous series. Mineralogical Magazine, 77, 3039-3046.
Makovicky, E. & Topa, D. (2013): The crystal structure of barikaite. Mineralogical Magazine, 77, 3093-3104.
Internet Links for Barikaite
mindat.org URL:
https://www.mindat.org/min-43578.html
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External Links:
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Localities for Barikaite
Locality List




All localities listed without proper references should be considered as questionable.
Iran (TL) | |
| Topa, D., Makovicky, E., Putz, H., Zagler, G. and Tajjedin, H. (2013) Barikaite, IMA 2012-055. CNMNC Newsletter No. 15, February 2013, page 4; Mineralogical Magazine, 77, 1-12; Topa, D., Makovicky, E., Tajedin, H., Putz, H., Zagler, G. (2013): Barikaite, Pb10Ag3(Sb8As11)S19S40, a new member of the sartorite homologous series. Mineralogical Magazine, 77, 3039-3046. |