Liebigite (original) (raw)
A valid IMA mineral species - grandfathered
About LiebigiteHide
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Formula:
Ca2(UO2)(CO3)3 · 11H2O
Colour:
Apple-green, siskin-green, yellowish green
Crystal System:
Orthorhombic
Name:
Named in honor of Justus Freiherr von Liebig (12 May 1803, Darmstadt, Landgraviate of Hesse-Darmstadt, Holy Roman Empire - 18 April 1873, Munich, Kingdom of Bavaria, German Empire), chemist who is considered one of the principal founders of analytical and organic chemistry. He made major contributions to agricultural and biological chemistry, and has been called the "father of the fertilizer industry".
A secondary uranium mineral.
Unique IdentifiersHide
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Long-form identifier:
mindat:1:1:2398:2
7601ccd9-3773-4d26-94bd-db7a2effb67b
IMA Classification of LiebigiteHide
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Approved, 'Grandfathered' (first described prior to 1959)
Type description reference:
Classification of LiebigiteHide
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5.ED.20
5 : CARBONATES (NITRATES)
E : Uranyl Carbonates
D : UO2:CO3 = 1:3
15.3.2.1
15 : HYDRATED NORMAL CARBONATES
3 : AmBn(XO3)p·xH2O, with (m+n):p = 1:1
Mineral SymbolsHide
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As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Lbi | 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 LiebigiteHide
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Transparency:
Transparent, Translucent
Comment:
Pearly on cleavage {100}
Colour:
Apple-green, siskin-green, yellowish green
Cleavage:
Imperfect/Fair
On {100}.
Density:
2.41 g/cm3 (Measured) 2.41 g/cm3 (Calculated)
Optical Data of LiebigiteHide
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RI values:
_n_α = 1.494 - 1.501 _n_β = 1.498 - 1.505 _n_γ = 1.535 - 1.542
δ = 0.041
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Dispersion:
moderate r > v
Comments:
X = Nearly colourless
Y = Light yellowish green
Z = Light yellowish green
Chemistry of LiebigiteHide
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Mindat Formula:
Ca2(UO2)(CO3)3 · 11H2O
Crystallography of LiebigiteHide
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Crystal System:
Orthorhombic
Class (H-M):
m _m_2 - Pyramidal
Cell Parameters:
a = 16.699(3) Å, b = 17.557(3) Å, c = 13.697(2) Å
Ratio:
a:b:c = 0.951 : 1 : 0.78
Unit Cell V:
4,015.75 ų (Calculated from Unit Cell)
Morphology:
Crystals equant or short prismatic [001], normally indistinct with rounded edges and convex or vicinal faces. Commonly granular or scaly aggregates and thin crusts; botryoidal.
Comment:
Space Group: Bba2.
Crystal StructureHide
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| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0015691 | Liebigite | Mereiter K (1982) The crystal structure of liebigite, Ca2UO2(CO3)3*~11H2O Tschermaks Mineralogische und Petrographische Mitteilungen 30 277-288 | 1982 | Joachimsthal, Bohmen | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder DiffractionHide
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Radiation - Copper Kα
Data Set:
Data courtesy of RRUFF project at University of Arizona, used with permission.
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 6.81 Å | (100) |
| 8.68 Å | (90) |
| 5.40 Å | (90) |
| 4.55 Å | (60) |
| 3.10 Å | (60) |
| 3.33 Å | (50) |
| 3.31 Å | (50) |
Geological EnvironmentHide
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Geological Setting:
Secondary mineral formed by alkteration of uraninite in alkaline carbonate solutions.
Type Occurrence of LiebigiteHide
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General Appearance of Type Material:
Place of Conservation of Type Material:
American Museum of Natural History, New York, New York, USA, 16847.
Associated Minerals at Type Locality:
Reference:
Smith, J.L. (1848) Two new minerals, - medjidite (sulphate of uranium and lime) - liebigite (carbonate of uranium and lime). American Journal of Science and Arts: 5: 336-338.
Synonyms of LiebigiteHide
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Other Language Names for LiebigiteHide
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Common AssociatesHide
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Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat GroupingHide
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| 5.ED. | Paramarkeyite | Ca2(UO2)(CO3)3 · 5H2O | Mon. 2/m |
|---|---|---|---|
| 5.ED. | Pendevilleite-(Y) | Mg2Y3Al(UO2)2(CO3)7(OH)6(H2O)16 | Tric. 1 : _P_1 |
| 5.ED.05 | Bayleyite | Mg2(UO2)(CO3)3 · 18H2O | Mon. 2/m : _P_21/b |
| 5.ED.10 | Swartzite | MgCa(UO2)(CO3)3 · 12H2O | Mon. 2/m : _P_21/m |
| 5.ED.15 | Albrechtschraufite | Ca4Mg(UO2)2(CO3)6F2 · 17-18H2O | Tric. 1 : _P_1 |
| 5.ED.25 | Rabbittite | Ca3Mg3(UO2)2(CO3)6(OH)4 · 18H2O | Mon. |
| 5.ED.30 | Andersonite | Na2Ca(UO2)(CO3)3 · 6H2O | Trig. 3 : _R_3 |
| 5.ED.35 | Grimselite | K3Na(UO2)(CO3)3 · H2O | Hex. 6_m_2 : P_62_c |
| 5.ED.40 | Widenmannite | Pb2(OH)2[(UO2)(CO3)2] | Orth. |
| 5.ED.45 | Znucalite | Zn10Ca0.83(UO2)0.83(CO3)4(OH)15.31(H2O)5.48 | Mon. 2/m : _P_21/m |
| 5.ED.50 | Čejkaite | Na4(UO2)(CO3)3 | Mon. m : B b |
| 5.ED.50 | Agricolaite | K4(UO2)(CO3)3 | Mon. 2/m : _B_2/b |
| 5.ED.55 | Línekite | K2Ca3[(UO2)(CO3)3]2 · 8H2O | Orth. m m m _(_2/_m_2/_m_2/m ) : P n n m |
| 5.ED.55 | Braunerite | K2Ca(UO2)(CO3)3 · 6H2O | Mon. 2/m : _P_21/b |
| 5.ED.60 | Leószilárdite | Na6Mg(UO2)2(CO3)6 · 6H2O | Mon. 2/m : _B_2/m |
| 5.ED.65 | Pseudomarkeyite | Ca8(UO2)4(CO3)12 · 21H2O | Mon. 2/m : _P_21/m |
| 5.ED.65 | Markeyite | Ca9(UO2)4(CO3)13 · 28H2O | Orth. m m m _(_2/_m_2/_m_2/m ) : P m m n |
| 5.ED.65 | Natromarkeyite | Na2Ca8(UO2)4(CO3)13 · 27H2O | Orth. m m m _(_2/_m_2/_m_2/m ) : P m m n |
| 5.ED.70 | Paddlewheelite | MgCa5Cu2(UO2)4(CO3)12(H2O)33 | Mon. m : P b |
Fluorescence of LiebigiteHide
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Green to blue green fluorescence (LW & SWUV).
Other InformationHide
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Notes:
Soluble in H2SO4 with effervescence.
Special Storage/
Display Requirements:
Liebigite loses 10 of its 11 water molecules in the range between 25 and 150°C (Vochten et al., 1993).
Internet Links for LiebigiteHide
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References for LiebigiteHide
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Reference List:
Localities for LiebigiteHide
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This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the 
symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
Locality ListHide
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- 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). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.