Bairdite
A valid IMA mineral species
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About Bairdite
Jerry A. Baird
Formula:
Pb2Cu2+4Te6+2O10(OH)2(SO4) · H2O
Colour:
Lime green
Lustre:
Adamantine
Hardness:
2 - 3
Specific Gravity:
6.062 (Calculated)
Crystal System:
Monoclinic
Name:
Named in honor of Jerry A. Baird (b. 1940) of Lake Havasu City, Arizona, USA. He is a mineral collector and has collected extensively at Otto Mountain. He supplied numerous samples for research including one of the two co-type specimens of bairdite and one of the two co-types of fuettererite.
New structure type
Unique Identifiers
Mindat ID:
43583
Long-form identifier:
mindat:1:1:43583:1
IMA Classification of Bairdite
Approved
IMA Formula:
Pb2Cu2+4Te6+2O10(OH)2(SO4) · H2O
Approval year:
2012
First published:
2013
Approval history:
IMA2012-061
Type description reference:
Kampf, A. R., Mills, S. J., Housley, R. M., Rossman, G. R., Marty, J., Thorne, B. (2013) Lead-tellurium oxysalts from Otto Mountain near Baker, California: X. Bairdite, Pb2Cu2+4Te6+2O10(OH)2(SO4)(H2O), a new mineral with thick HCP layers. American Mineralogist, 98 (7) 1315-1321 doi:10.2138/am.2013.4389
Classification of Bairdite
7.DF.
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
F : With large and medium-sized cations
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
F : With large and medium-sized cations
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Bai | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Bairdite
Adamantine
Colour:
Lime green
Streak:
Pale lime green
Hardness:
2 - 3 on Mohs scale
Tenacity:
Brittle
Cleavage:
Perfect
{100}
{100}
Fracture:
Irregular/Uneven
Density:
6.062 g/cm3 (Calculated)
Optical Data of Bairdite
Type:
Biaxial (+)
RI values:
nα = 1.953 nβ = 1.966 nγ = 2.039
2V:
Measured: 47° (2)
Max. Birefringence:
δ = 0.086
Based on recorded range of RI values above.
Based on recorded range of RI values above.
Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars.
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars.
Surface Relief:
Moderate
Pleochroism:
Strong
Comments:
Z (pale green) <<< X (green) < Y (green)
Chemistry of Bairdite
Mindat Formula:
Pb2Cu2+4Te6+2O10(OH)2(SO4) · H2O
Element Weights:
Crystallography of Bairdite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Cell Parameters:
a = 14.3126 Å, b = 5.2267 Å, c = 9.4878 Å
β = 106.815°
β = 106.815°
Ratio:
a:b:c = 2.738 : 1 : 1.815
Unit Cell V:
679.41 ų (Calculated from Unit Cell)
Morphology:
Diamond shaped tabular crystals to 250 microns, in subparallel and fan-shaped aggregates.
Crystal Structure
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0019857 | Bairdite | Kampf A R, Mills S J, Housley R M, Rossman G R, Marty J, Thorne B (2013) Lead-tellurium oxysalts from Otto Mountain near Baker, California: X. Bairdite, Pb2Cu2+4Te6+2O10(OH)2(SO4)(H2O), a new mineral with thick HCP layers American Mineralogist 98 1315-1321 | 2013 | Otto Mountain near Baker, California, USA | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 4.77 Å | (50) |
| 4.522 Å | (66) |
| 3.480 Å | (62) |
| 2.999 Å | (97) |
| 2.701 Å | (79) |
| 2.614 Å | (100) |
| 1.727 Å | (65) |
| 1.509 Å | (83) |
Reference:
Kampf, A. R., Mills, S. J., Housley, R. M., Rossman, G. R., Marty, J., Thorne, B. (2013) Lead-tellurium oxysalts from Otto Mountain near Baker, California: X. Bairdite, Pb2Cu2+4Te6+2O10(OH)2(SO4)(H2O), a new mineral with thick HCP layers. American Mineralogist, 98 (7) 1315-1321 doi:10.2138/am.2013.4389
Comments:
From Type Description.
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47a : [Near-surface hydration of prior minerals] | |
| 47b : [Sulfates and sulfites] | |
| 47e : [Vanadates, chromates, manganates] |
Type Occurrence of Bairdite
Place of Conservation of Type Material:
Mineral Sciences Department, Natural History Museum of Los Angeles County, Los Angeles, California, USA, catalogue numbers 64000 and 64001
Geological Setting of Type Material:
Bird Nest drift, Otto Mountain, San Bernadino County, California, USA (35.27677ºN 116.09927ºW)
Reference:
Kampf, A. R., Mills, S. J., Housley, R. M., Rossman, G. R., Marty, J., Thorne, B. (2013) Lead-tellurium oxysalts from Otto Mountain near Baker, California: X. Bairdite, Pb2Cu2+4Te6+2O10(OH)2(SO4)(H2O), a new mineral with thick HCP layers. American Mineralogist, 98 (7) 1315-1321 doi:10.2138/am.2013.4389
Synonyms of Bairdite
Other Language Names for Bairdite
Common Associates
Associated Minerals Based on Photo Data:
| 4 photos of Bairdite associated with Fuettererite | Pb3Cu2+6Te6+O6(OH)7Cl5 |
| 4 photos of Bairdite associated with Quartz | SiO2 |
| 1 photo of Bairdite associated with Timroseite | Pb2Cu5(TeO6)2(OH)2 |
Related Minerals - Strunz-mindat Grouping
| 7.DF. | Siligiite | [Pb(H2O)5(SO4)][Zn9(OH)18] |
| 7.DF. | Alcaparrosaite | K3Ti4+Fe3+(SO4)4O(H2O)2 |
| 7.DF. | Flaggite | Pb4Cu2+4Te6+2(SO4)2O11(OH)2(H2O) |
| 7.DF. | Tzeferisite | CaZn8(SO4)2(OH)12Cl2(H2O)9 |
| 7.DF. | Cherokeeite | [Pb2Zn(OH)4](SO4) · H2O |
| 7.DF. | Ammoniomathesiusite | (NH4)5(UO2)4(SO4)4(VO5) · 4H2O |
| 7.DF. | Sigogglinite | [Pb6Zn(OH)8](SO4)3 · 3H2O |
| 7.DF.X | Blueridgeite | [Pb8Zn3Cu2+(OH)16](SO4)2(S2O3)2 · 2H2O |
| 7.DF. | Erssonite | Mg7Fe3+2(OH)18[Ca(H2O)6](SO4)2 · 12H2O |
| 7.DF. | Poellmannite | Ca6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2O |
| 7.DF. | Carlsonite | (NH4)5Fe3+3O(SO4)6 · 7H2O |
| 7.DF. | Aldridgeite | (Cd,Ca)(Cu,Zn)4(SO4)2(OH)6 · 3H2O |
| 7.DF. | Cuprocherokeeite | [Pb8Zn3Cu2+(OH)16](SO4)4 · 4H2O |
| 7.DF. | Haywoodite | [Pb(H2O)10][Zn12(OH)20(H2O)(SO4)3] |
| 7.DF. | Chromschieffelinite | Pb10Te6+6O20(OH)14(CrO4)(H2O)5 |
| 7.DF.05 | Uklonskovite | NaMg(SO4)F · 2H2O |
| 7.DF.10 | Kainite | KMg(SO4)Cl · 3H2O |
| 7.DF.10 | Kaliochalcite | KCu2(SO4)2[(OH)(H2O)] |
| 7.DF.15 | Natrochalcite | NaCu2(SO4)2(OH) · 2H2O |
| 7.DF.17 | Genplesite | Ca3Sn(SO4)2(OH)6 · 3H2O |
| 7.DF.17 | Unnamed (Ba-Sb Silicate-Sulphate-Hydroxide-Hydrate) | Ba3Sb5+[(Si,S)O3(OH)]2(OH,O)6 · 3H2O |
| 7.DF.20 | Sideronatrite | Na2Fe(SO4)2(OH) · 3H2O |
| 7.DF.20 | Metasideronatrite | Na2Fe(SO4)2(OH) · H2O |
| 7.DF.25 | Fleischerite | Pb3Ge(SO4)2(OH)6 · 3H2O |
| 7.DF.25 | Mallestigite | Pb3Sb5+(SO4)(AsO4)(OH)6 · 3H2O |
| 7.DF.25 | Schaurteite | Ca3Ge(SO4)2(OH)6 · 4H2O |
| 7.DF.25 | Despujolsite | Ca3Mn4+(SO4)2(OH)6 · 3H2O |
| 7.DF.30 | Slavíkite | (H3O+)3Mg6Fe15(SO4)21(OH)18 · 98H2O |
| 7.DF.35 | Metavoltine | K2Na6Fe2+Fe3+6O2(SO4)12 · 18H2O |
| 7.DF.40 | Lannonite | Mg2Ca4Al4(SO4)8F8 · 24H2O |
| 7.DF.40 | Vlodavetsite | AlCa2(SO4)2F2Cl · 4H2O |
| 7.DF.45 | Peretaite | Ca(SbO)4(SO4)2(OH)2 · 2H2O |
| 7.DF.50 | Gordaite | NaZn4(SO4)(OH)6Cl · 6H2O |
| 7.DF.50 | Calamaite | Na2TiO(SO4)2 · 2H2O |
| 7.DF.52 | Huizingite-(Al) | [(NH4)9(SO4)2][(Al,Fe3+)3(OH)2(H2O)4(SO4)6] |
| 7.DF.52 | Scordariite | K8(Fe3+0.67◻0.33)[Fe3+3O(SO4)6]2 · 14H2O |
| 7.DF.55 | Clairite | (NH4)2Fe3(SO4)4(OH)3 · 3H2O |
| 7.DF.55 | Giacovazzoite | K5Fe3+3O(SO4)6 · 10H2O |
| 7.DF.57 | Magnanelliite | K3Fe3+2(SO4)4(OH)(H2O)2 |
| 7.DF.60 | Arzrunite | Cu4Pb2(SO4)(OH)4Cl6 · 2H2O (?) |
| 7.DF.60 | Evdokimovite | Tl4(VO)3(SO4)5(H2O)5 |
| 7.DF.62 | Bridgesite-(Ce) | CaCe2Cu6(SO4)4(OH)12 · 8H2O |
| 7.DF.65 | Elyite | Pb4Cu(SO4)O2(OH)4 · H2O |
| 7.DF.70 | Yecoraite | Fe3+3Bi5(Te6+O4)2(Te4+O3)O9 · 9H2O |
| 7.DF.70 | Lautenthalite | PbCu4(SO4)2(OH)6 · 3H2O |
| 7.DF.75 | Riomarinaite | Bi(SO4)(OH) · H2O |
| 7.DF.80 | Dukeite | Bi3+24Cr6+8O57(OH)6 · 3H2O |
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 Bairdite
mindat.org URL:
https://www.mindat.org/min-43583.html
Please feel free to link to this page.
Please feel free to link to this page.
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External Links:
References for Bairdite
Reference List:
Williams, P. A., Hatert, F., Pasero, M., Mills, S. J. (2013) IMA Commission on New Minerals, Nomenclature and Classification. CNMNC Newsletter No. 15. Mineralogical Magazine, 77 (1) 1-12 doi:10.1180/minmag.2013.077.1.01
Kampf, A. R., Mills, S. J., Housley, R. M., Rossman, G. R., Marty, J., Thorne, B. (2013) Lead-tellurium oxysalts from Otto Mountain near Baker, California: X. Bairdite, Pb2Cu2+4Te6+2O10(OH)2(SO4)(H2O), a new mineral with thick HCP layers. American Mineralogist, 98 (7) 1315-1321 doi:10.2138/am.2013.4389
Localities for Bairdite
symbol to view information about a locality.
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.
Kazakhstan | |
| Pavel M. Kartashov analytical data 2018 |
USA | |
| Thorne (n.d.) |
| Specimens analyzed by the University of ... +1 other reference |
| Marek Chorazewicz (2022) |
| Collected by and in the collection of ... |
| Marek Chorazewicz (2022) | |
| Marek Chorazewicz (2019) | |
| Mineralogical Magazine +1 other reference |
| collected by and in the collection of ... +1 other reference | |
| identity confirmed with Raman ... |
| Kampf et al. (2022) |
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410 Level, Empire Mine, Tombstone Mining District, Cochise County, Arizona, USA