Sayrite
A valid IMA mineral species
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About Sayrite
David Sayre
Formula:
Pb2(UO2)5O6(OH)2 · 4H2O
structural formula: Pb2(H2[4]O)4[(UO2)5O6(OH)2
Colour:
Yellow-orange to red-orange
Lustre:
Adamantine, Vitreous
Specific Gravity:
6.76 (Calculated)
Crystal System:
Monoclinic
Name:
Named after David Sayre (2 March 1924, New York, New York, USA - 23 February 2012, Ashland, Oregon, USA), crystallographer, IBM Corporation, USA. The Sayre equation, used in crystallography, is named after him. He was also part of the initial team that created the FORTRAN programming language.
This page provides mineralogical data about Sayrite.
Unique Identifiers
Mindat ID:
3545
Long-form identifier:
mindat:1:1:3545:9
GUID
(UUID V4):
(UUID V4):
d7692696-d613-4dbb-b912-7c047c5edc97
IMA Classification of Sayrite
Approved
First published:
1983
Type description reference:
Piret, Paul, Deliens, Michel, Piret-Meunier, Jacqueline, Germain, Gabriel, Piret, Paul, Deliens, Michel, Piret-Meunier, Jacqueline, Germain, Gabriel (1983) La sayrite, (Pb2[(UO2)5O6(OH)2]·4H2O, nouveau minéral ; propriétés et structure cristalline. Bulletin de Minéralogie, 106 (3) 299-304 doi:10.3406/bulmi.1983.7709
Classification of Sayrite
4.GB.50
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
G : Uranyl Hydroxides
B : With additional cations (K, Ca, Ba, Pb, etc.); with mainly UO2(O,OH)5 pentagonal polyhedra
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
G : Uranyl Hydroxides
B : With additional cations (K, Ca, Ba, Pb, etc.); with mainly UO2(O,OH)5 pentagonal polyhedra
5.9.6.1
5 : OXIDES CONTAINING URANIUM OR THORIUM
9 : Miscellaneous
5 : OXIDES CONTAINING URANIUM OR THORIUM
9 : Miscellaneous
7.16.30
7 : Oxides and Hydroxides
16 : Oxides of U
7 : Oxides and Hydroxides
16 : Oxides of U
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 |
|---|---|---|
| Syr | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Pronunciation of Sayrite
Pronunciation:
| Play | Recorded by | Country |
|---|---|---|
| Jolyon Ralph | United Kingdom |
Physical Properties of Sayrite
Adamantine, Vitreous
Transparency:
Transparent, Translucent
Colour:
Yellow-orange to red-orange
Hardness:
VHN100=150 - Vickers
Cleavage:
Distinct/Good
distinct {102}
distinct {102}
Density:
6.76 g/cm3 (Calculated)
Optical Data of Sayrite
Type:
Biaxial (-)
Dispersion:
relatively weak
Pleochroism:
Visible
Comments:
Y pale yellow, Z amber
Comments:
Refractive index along α was not measurable
2V was 'large'
X ~ a, Y = b, Z ~ c
2V was 'large'
X ~ a, Y = b, Z ~ c
Chemistry of Sayrite
Mindat Formula:
Pb2(UO2)5O6(OH)2 · 4H2O
structural formula: Pb2(H2[4]O)4[(UO2)5O6(OH)2
structural formula: Pb2(H2[4]O)4[(UO2)5O6(OH)2
Elements listed:
Crystallography of Sayrite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Cell Parameters:
a = 10.6925(4) Å, b = 6.9593(2) Å, c = 13.6035(5) Å
β = 107.680(3)°
β = 107.680(3)°
Ratio:
a:b:c = 1.536 : 1 : 1.955
Unit Cell V:
964.46 ų
Z:
2
Morphology:
Prismatic crystals elongated along b and flattened on {102}
Comment:
space group is P21/n
Crystal Structure
Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Show
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
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Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
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CIF File Best | x | y | z | a | b | c
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Rotation
Stop | Start
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Labels
Console Off | On | Grey | Yellow
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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) |
|---|---|---|---|---|---|---|---|
| 0012080 | Sayrite | Piret P, Deliens M, Piret-Meunier J, Germain G (1983) La sayrite, Pb2[(UO2)5O6(OH)2]*4H2O, nouveau mineral; proprietes et structure cristalline Bulletin de Mineralogie 106 299-304 | 1983 | Shinkolobwe, Shaba, Zaire | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 7.01 Å | (80) |
| 5.67 Å | (50) |
| 3.512 Å | (90) |
| 3.426 Å | (40) |
| 3.113 Å | (100) |
| 3.052 Å | (70) |
| 1.955 Å | (50) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47a : [Near-surface hydration of prior minerals] | |
| 47f : [Uranyl (U⁶⁺) minerals] |
Type Occurrence of Sayrite
General Appearance of Type Material:
Yellow-orange to red-orange, prismatic crystals with maximum size 0.6 x 0.3 x 0.1 mm
Place of Conservation of Type Material:
Royal Museum of Central Africa, Tervaren, Belgium
Geological Setting of Type Material:
Uranium deposit
Associated Minerals at Type Locality:
Reference:
Piret, P., Deliens, M., Piret-Meunier, J., and Germain, G. (1983) La sayrite, Pb2[(UO2)5O6(OH)2]·4H2O, noveau minéral; propriétés et structure cristalline. Bulletin de la Société française de Minéralogie et de Cristallographie: 106: 299-304.
Synonyms of Sayrite
Other Language Names for Sayrite
Common Associates
Associated Minerals Based on Photo Data:
| 2 photos of Sayrite associated with Uranophane | Ca(UO2)2(SiO3OH)2 · 5H2O |
| 1 photo of Sayrite associated with Uraninite | UO2 |
Related Minerals - Strunz-mindat Grouping
| 4.GB.05 | Agrinierite | K2(Ca,Sr)[(UO2)3O3(OH)2]2 · 5H2O |
| 4.GB.05 | Compreignacite | K2(UO2)6O4(OH)6 · 7H2O |
| 4.GB.05 | Rameauite | K2Ca(UO2)6O6(OH)4 · 6H2O |
| 4.GB.10 | Becquerelite | Ca(UO2)6O4(OH)6 · 8H2O |
| 4.GB.10 | Billietite | Ba(UO2)6O4(OH)6 · 4-8H2O |
| 4.GB.10 | Protasite | Ba(UO2)3O3(OH)2 · 3H2O |
| 4.GB.15 | Richetite | (Fe3+,Mg)Pb 8.6(UO2)36O36(OH)24 · 41H2O |
| 4.GB.20 | Bauranoite | Ba(UO2)2(OH)6 · 1-2H2O |
| 4.GB.20 | Calciouranoite | (Ca,Ba,Pb)U2O7 · 5H2O |
| 4.GB.20 | Metacalciouranoite | (Ca,Ba,Pb,K2)U2O7 · 2H2O |
| 4.GB.25 | Fourmarierite | Pb(UO2)4O3(OH)4 · 4H2O |
| 4.GB.30 | Wölsendorfite | Pb7(UO2)14O19(OH)4 · 12H2O |
| 4.GB.35 | Masuyite | Pb(UO2)3O3(OH)2 · 3H2O |
| 4.GB.40 | Metavandendriesscheite | PbU7O22 · nH2O n < 12 |
| 4.GB.40 | Vandendriesscheite | PbU7O22 · 12H2O |
| 4.GB.45 | Vandenbrandeite | Cu(UO2)(OH)4 |
| 4.GB.55 | Curite | Pb3(H2O)2[(UO2)4O4(OH)3]2 |
| 4.GB.60 | Iriginite | (UO2)Mo2O7 · 3H2O |
| 4.GB.65 | Uranosphaerite | Bi(UO2)O2(OH) |
| 4.GB.70 | Holfertite | CaxU6+2-xTi(O8-xOH4x) · 3H2O |
| 4.GB.75 | Carlosbarbosaite | (UO2)2Nb2O6(OH)2 · 2H2O |
| 4.GB.80 | Gauthierite | KPb[(UO2)7O5(OH)7] · 8H2O |
| 4.GB.85 | Kroupaite | KPb0.5[(UO2)8O4(OH)10] · 10H2O |
| 4.GB.90 | Leesite | K(H2O)2[(UO2)4O2(OH)5] · 3H2O |
| 4.GB.95 | Shinkolobweite | Pb1.25[U5+(H2O)2(U6+O2)5O8(OH)2](H2O)5 |
| 4.GB.95 | Nollmotzite | Mg[U5+(U6+O2)2O4F3] · 4H2O |
Other Information
Notes:
Radioactive
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 Sayrite
mindat.org URL:
https://www.mindat.org/min-3545.html
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Please feel free to link to this page.
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References for Sayrite
Reference List:
Piret, Paul, Deliens, Michel, Piret-Meunier, Jacqueline, Germain, Gabriel, Piret, Paul, Deliens, Michel, Piret-Meunier, Jacqueline, Germain, Gabriel (1983) La sayrite, (Pb2[(UO2)5O6(OH)2]·4H2O, nouveau minéral ; propriétés et structure cristalline. Bulletin de Minéralogie, 106 (3) 299-304 doi:10.3406/bulmi.1983.7709
Piret, Paul, Deliens, Michel, Piret-Meunier, Jacqueline, Germain, Gabriel, Piret, Paul, Deliens, Michel, Piret-Meunier, Jacqueline, Germain, Gabriel (1983) La sayrite, (Pb2[(UO2)5O6(OH)2]·4H2O, nouveau minéral ; propriétés et structure cristalline. Bulletin de Minéralogie, 106 (3) 299-304 doi:10.3406/bulmi.1983.7709
Dunn, Pete J., Chao, George Y., Grice, Joel D., Ferraiolo, James A., Fleischer, Michael, Pabst, Adolf, Zilczer, Janet A. (1984) New mineral names. American Mineralogist, 69 (5-6) 565-569
Localities for Sayrite
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.
Brazil | |
| |
DR Congo (TL) | |
| Piret, Paul, Deliens, Michel, Piret-Meunier, Jacqueline, Germain, Gabriel, Piret, Paul, Deliens, Michel, Piret-Meunier, Jacqueline, Germain, Gabriel (1983) La sayrite, (Pb2[(UO2)5O6(OH)2]·4H2O, nouveau minéral ; propriétés et structure cristalline. Bulletin de Minéralogie, 106 (3) 299-304 doi:10.3406/bulmi.1983.7709 |
Finland | |
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Quick NavTopAbout SayriteUnique IdentifiersIMA Classification Classification Mineral SymbolsPronunciation Physical Properties Optical Data Chemistry Crystallography Crystal StructureX-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsOther LanguagesCommon AssociatesStrunz-MindatOther InformationInternet Links References Localities Locality List
Shinkolobwe Mine, Shinkolobwe, Kambove Territory, Haut-Katanga, DR Congo