Agricolaite
A valid IMA mineral species
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About Agricolaite
Georgius Agricola
Formula:
K4(UO2)(CO3)3
Colour:
Yellow
Lustre:
Vitreous
Hardness:
4
Specific Gravity:
3.531 (Calculated)
Crystal System:
Monoclinic
Name:
Named in 2011 by R. Skála, P. Ondruš, F. Veselovský, I. Císařová, and J. Hloušek, in honor of Georgius Agricola (Glauchau, 24 March 1494 - Chemnitz, 21 November 1555), German scholar and scientist. He is considered the "father of mineralogy."
Unique Identifiers
Mindat ID:
39868
Long-form identifier:
mindat:1:1:39868:2
GUID
(UUID V4):
(UUID V4):
2ea79f83-5a8f-4d3e-a1e1-57678d639059
IMA Classification of Agricolaite
Approved
Approval year:
2010
First published:
2011
Classification of Agricolaite
5.ED.50
5 : CARBONATES (NITRATES)
E : Uranyl Carbonates
D : UO2:CO3 = 1:3
5 : CARBONATES (NITRATES)
E : Uranyl Carbonates
D : UO2:CO3 = 1:3
14.4.8.2
14 : ANHYDROUS NORMAL CARBONATES
4 : Miscellaneous
14 : ANHYDROUS NORMAL CARBONATES
4 : Miscellaneous
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 |
|---|---|---|
| Agc | 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 Agricolaite
Vitreous
Transparency:
Translucent
Colour:
Yellow
Streak:
Pale yellow
Hardness:
4 on Mohs scale
Hardness Data:
Measured
Tenacity:
Brittle
Cleavage:
None Observed
Parting:
none
Fracture:
Irregular/Uneven
Density:
3.531 g/cm3 (Calculated)
Comment:
Measured value is greater than 3.3
Chemistry of Agricolaite
Mindat Formula:
K4(UO2)(CO3)3
Elements listed:
Crystallography of Agricolaite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/b
Setting:
C2/c
Cell Parameters:
a = 10.2380(2) Å, b = 9.1930(2) Å, c = 12.2110(3) Å
β = 95.108(2)°
β = 95.108(2)°
Ratio:
a:b:c = 1.114 : 1 : 1.328
Unit Cell V:
1144.71 ų
Z:
4
Crystal Structure
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Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
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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) |
|---|---|---|---|---|---|---|---|
| 0012166 | Agricolaite | Anderson A, Chieh C, Irish D E, Tong J P K (1980) An X-ray crystallographic, Raman, and infrared spectral study of crystalline potassium uranyl carbonate, K4UO2(CO3)3 Canadian Journal of Chemistry 58 1651-1658 | 1980 | synthetic | 0 | 293 | |
| 0012225 | Agricolaite | Han J C, Rong S B, Chen Q M, Wu X R (1990) The determination of the crystal structure of tetrapotassium uranyl tricarbonate by powder X-ray diffraction method Chinese Journal of Chemistry 4 313-318 | 1990 | synthetic | 0 | 293 | |
| 0018661 | Agricolaite | Skala R, Ondrus P, Veselovsky F, Cisarova I, Hlousek J (2011) Agricolaite, a new mineral of uranium from Jachymov, Czech Republic Mineralogy and Petrology 103 169-175 | 2011 | Jachymov, Czech Republic | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 6.061 Å | (55) |
| 5.793 Å | (30) |
| 5.087 Å | (57) |
| 3.740 Å | (100) |
| 3.393 Å | (44) |
| 2.408 Å | (33) |
| 2.281 Å | (52) |
| 1.873 Å | (40) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47c : [Carbonates, phosphates, borates, nitrates] | |
| 47f : [Uranyl (U⁶⁺) minerals] |
Type Occurrence of Agricolaite
General Appearance of Type Material:
Isolated equant irregular translucent grains to 0.3 mm.
Place of Conservation of Type Material:
National Museum in Prague, Czech Republic, under the catalogue number P1p 17/2009.
Geological Setting of Type Material:
In vugs of ankerite gangue in gneisses.
Associated Minerals at Type Locality:
Reference:
Skála, R., Ondruš, P., Veselovský, F., Císařová, I. and Hloušek, J. (2011): Agricolaite, a new mineral of uranium from Jachymov, Czech Republic. Mineralogy and Petrology: 103: 169-175.
Synonyms of Agricolaite
Related Minerals - Strunz-mindat Grouping
| 5.ED. | Paramarkeyite | Ca2(UO2)(CO3)3 · 5H2O |
| 5.ED. | Pendevilleite-(Y) | Mg2Y3Al(UO2)2(CO3)7(OH)6(H2O)16 |
| 5.ED.05 | Bayleyite | Mg2(UO2)(CO3)3 · 18H2O |
| 5.ED.10 | Swartzite | MgCa(UO2)(CO3)3 · 12H2O |
| 5.ED.15 | Albrechtschraufite | Ca4Mg(UO2)2(CO3)6F2 · 17-18H2O |
| 5.ED.20 | Liebigite | Ca2(UO2)(CO3)3 · 11H2O |
| 5.ED.25 | Rabbittite | Ca3Mg3(UO2)2(CO3)6(OH)4 · 18H2O |
| 5.ED.30 | Andersonite | Na2Ca(UO2)(CO3)3 · 6H2O |
| 5.ED.35 | Grimselite | K3Na(UO2)(CO3)3 · H2O |
| 5.ED.40 | Widenmannite | Pb2(OH)2[(UO2)(CO3)2] |
| 5.ED.45 | Znucalite | Zn10Ca0.83(UO2)0.83(CO3)4(OH)15.31(H2O)5.48 |
| 5.ED.50 | Čejkaite | Na4(UO2)(CO3)3 |
| 5.ED.55 | Línekite | K2Ca3[(UO2)(CO3)3]2 · 8H2O |
| 5.ED.55 | Braunerite | K2Ca(UO2)(CO3)3 · 6H2O |
| 5.ED.60 | Leószilárdite | Na6Mg(UO2)2(CO3)6 · 6H2O |
| 5.ED.65 | Pseudomarkeyite | Ca8(UO2)4(CO3)12 · 21H2O |
| 5.ED.65 | Markeyite | Ca9(UO2)4(CO3)13 · 28H2O |
| 5.ED.65 | Natromarkeyite | Na2Ca8(UO2)4(CO3)13 · 27H2O |
| 5.ED.70 | Paddlewheelite | MgCa5Cu2(UO2)4(CO3)12(H2O)33 |
Fluorescence of Agricolaite
Not fluorescent
Other Information
Notes:
Water soluble
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 Agricolaite
mindat.org URL:
https://www.mindat.org/min-39868.html
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References for Agricolaite
Reference List:
Localities for Agricolaite
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.
Czech Republic (TL) | |
| Skála et al. (2011) |
| Thorne (n.d.) | |
| Plášil et al. (2017) |
Spain | |
| Castillo-Oliver et al. (2019) |
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Rovnost Mine, Jáchymov, Karlovy Vary District, Karlovy Vary Region, Czech Republic