UM1986-39-S:AuBiPbTe
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Formula:
~Au(Pb,Cu)2(Bi,Sb,As,Se)Te2S3
Compositionally similar to buckhornite. Suggested as the Bi analogue of nagyágite.
Forms aggregates, up to 0.1 mm in size, that comprise longitudinally twinned and elongated crystals, up to 0.015 mm in length. Occurs as graphic intergrowths with tetrahedrite and rucklidgeite; may also be intergrown with other Bi tellurides and chalcopyrite.
Forms aggregates, up to 0.1 mm in size, that comprise longitudinally twinned and elongated crystals, up to 0.015 mm in length. Occurs as graphic intergrowths with tetrahedrite and rucklidgeite; may also be intergrown with other Bi tellurides and chalcopyrite.
Unique Identifiers
Mindat ID:
47909
Long-form identifier:
mindat:1:1:47909:3
Similar Names
| UM1970-21-S:BiPbTe | (Bi,Pb)3Te2S2 | |
| UM1972-11-S:BiPbTe | PbBiTeS | |
| UM1974-28-S:BiPbTe | ||
| UM1974-29-S:BiPbTe | (Bi,Pb)5TeS5 | |
| UM1983-09-S:BiPbTe | Invalid as an unnamed mineral | PbBi3S2Te |
| UM1986-41-S:BiPbTe | ~ (Pb,Cu,Fe)10Bi8(Te,Se)4S11 | |
| UM1987-16-Se:BiPbTe | (Bi,Pb)2(Se,Te,S)3 | |
| UM1988-07-S:AgBiPbTe | PbBi3.14Ag0.09Te3.89S2.81 | |
| UM1995-25-S:BiPbTe | Valid as an unnamed mineral | Pb2Bi2TeS3 |
| UM1995-26-S:BiPbTe | Valid as an unnamed mineral | Pb2Bi3Te2S3 |
| UM1995-27-S:BiPbTe | Valid as an unnamed mineral | Pb2Bi5Te5S2 |
| UM1995-28-S:BiPbTe | Valid as an unnamed mineral | PbBi4Te2S2 |
| UM1995-29-S:BiPbTe | Valid as an unnamed mineral | PbBi4Te3S |
| UM2007-23-S:BiPbTe | Valid as an unnamed mineral | Pb3Bi4Te4S5 |
| UM2007-24-S:BiPbTe | Valid as an unnamed mineral | Pb5Bi4Te4S7 |
| UM2007-25-S:BiPbTe | Valid as an unnamed mineral | Pb3Bi2Te2S4 |
Optical Data of UM1986-39-S:AuBiPbTe
Anisotropism:
strong, bluish to brownish polarization colours
Reflectivity:
| Wavelength | R1 (%) | R2 (%) |
|---|---|---|
| 420nm | 46.6% | 41.4% |
| 460nm | 45.1% | 40.5% |
| 500nm | 44.5% | 39.8% |
| 540nm | 43.3% | 39.5% |
| 580nm | 41.9% | 38.6% |
| 620nm | 41.5% | 38.3% |
| 660nm | 40.7% | 37.9% |
| 700nm | 39.2% | 37.2% |
Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 46.6%.
R1 shown in black, R2 shown in red
Colour in reflected light:
light gray
Chemistry of UM1986-39-S:AuBiPbTe
Mindat Formula:
~Au(Pb,Cu)2(Bi,Sb,As,Se)Te2S3
Element Weights:
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.
Internet Links for UM1986-39-S:AuBiPbTe
mindat.org URL:
https://www.mindat.org/min-47909.html
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References for UM1986-39-S:AuBiPbTe
Reference List:
Localities for UM1986-39-S:AuBiPbTe
Showing 1 localities.
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The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and 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).
All localities listed without proper references should be considered as questionable.
Czech Republic | |
| Pašava et al. (1986) +1 other reference |
