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About AndersoniteHide

Charles A. Anderson
Na2Ca(UO2)(CO3)3 · 6H2O
Bright green to yellow-green.
Specific Gravity:
Crystal System:
For Charles A. Anderson (1902-1990), American geologist, US Geological Survey.
This page provides mineralogical data about Andersonite.

Classification of AndersoniteHide

Approved, 'Grandfathered' (first described prior to 1959)

E : Uranyl Carbonates
D : UO2:CO3 = 1:3

2 : AmBn(XO3)p·xH2O, with (m+n):p > 1:1

11 : Carbonates
11 : Carbonates of Cr and U

Pronounciation of AndersoniteHide

PlayRecorded byCountry
Jolyon & Katya RalphUnited Kingdom

Physical Properties of AndersoniteHide

Transparent, Translucent
Bright green to yellow-green.
2½ on Mohs scale
2.8 g/cm3 (Measured)    2.86 g/cm3 (Calculated)

Optical Data of AndersoniteHide

Uniaxial (+)
RI values:
nω = 1.520 nε = 1.540
Max Birefringence:
δ = 0.020
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
O = colourless
E = Light yellow

Chemical Properties of AndersoniteHide

Na2Ca(UO2)(CO3)3 · 6H2O

Crystallography of AndersoniteHide

Crystal System:
Class (H-M):
3 - Rhombohedral
Space Group:
Cell Parameters:
a = 18 Å, c = 23.83 Å
a:c = 1 : 1.324
Unit Cell V:
6,686.51 ų (Calculated from Unit Cell)
As rhombohedra, pseudocubic or flattened and with complex form development, to 1 cm; typically in crystalline crusts, granular.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0009746AndersoniteCoda A, Della Giusta A, Tazzoli V (1981) The structure of synthetic andersonite, Na2Ca[UO2(CO3)3].x(H2O) (x~5.6) Acta Crystallographica B37 1496-150019810293
CIF Raw Data - click here to close

Geological EnvironmentHide

Geological Setting:
An uncommon secondary mineral, formed in the oxidized zone of uranium-bearing hydrothermal polymetallic deposits; may be post-mine, coating walls of mine tunnels.

Type Occurrence of AndersoniteHide

Place of Conservation of Type Material:
National Museum of Natural History, Washington, D.C., USA, 106112–106115.
Geological Setting of Type Material:
Post-mining efflorescences on mine walls.
Associated Minerals at Type Locality:

Other Language Names for AndersoniteHide

Simplified Chinese:水碳钠钙铀矿
Traditional Chinese:水碳鈉鈣鈾礦

Common AssociatesHide

BayleyiteMg2(UO2)(CO3)3 · 18H2O
BayleyiteMg2(UO2)(CO3)3 · 18H2O
Boltwoodite(K,Na)(UO2)(SiO3OH) · 1.5H2O
GypsumCaSO4 · 2H2O
LiebigiteCa2(UO2)(CO3)3 · 11H2O
Associated Minerals Based on Photo Data:
5 photos of Andersonite associated with JohanniteCu(UO2)2(SO4)2(OH)2 · 8H2O
2 photos of Andersonite associated with SchröckingeriteNaCa3(UO2)(CO3)3(SO4)F · 10H2O
1 photo of Andersonite associated with BayleyiteMg2(UO2)(CO3)3 · 18H2O
1 photo of Andersonite associated with ZinczippeiteZn(UO2)2(SO4)O2 · 3.5H2O
1 photo of Andersonite associated with CoffiniteU(SiO4) · nH2O

Related Minerals - Nickel-Strunz GroupingHide

5.ED.05BayleyiteMg2(UO2)(CO3)3 · 18H2OMon.
5.ED.10SwartziteMgCa(UO2)(CO3)3 · 12H2OMon. 2/m : P21/m
5.ED.15AlbrechtschraufiteCa4Mg(UO2)2(CO3)6F2 · 17-18H2OTric. 1 : P1
5.ED.20LiebigiteCa2(UO2)(CO3)3 · 11H2OOrth. mm2
5.ED.25RabbittiteCa3Mg3(UO2)2(CO3)6(OH)4 · 18H2OMon.
5.ED.35GrimseliteK3Na(UO2)(CO3)3 · H2OHex.
5.ED.45ZnucaliteZn12Ca(UO2)(CO3)3(OH)22 · 4H2OOrth.
5.ED.50ČejkaiteNa4(UO2)(CO3)3Mon. m : Bb
5.ED.50AgricolaiteK4(UO2)(CO3)3Mon. 2/m : B2/b

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

11.11.1StichtiteMg6Cr3+2(OH)16[CO3] · 4H2OTrig. 3m (3 2/m) : R3m
11.11.2Rutherfordine(UO2)CO3Orth. mm2 : Imm2
11.11.3Joliotite(UO2)CO3 · nH2OOrth.
11.11.4GrimseliteK3Na(UO2)(CO3)3 · H2OHex.
11.11.5BayleyiteMg2(UO2)(CO3)3 · 18H2OMon.
11.11.6MetazelleriteCa(UO2)(CO3)2 · 3H2OOrth.
11.11.7ZelleriteCa(UO2)(CO3)2 · 5H2OOrth.
11.11.8WyartiteCaU5+(UO2)2(CO3)O4(OH) · 7H2OOrth.
11.11.9UrancalcariteCa(UO2)3(CO3)(OH)6 · 3H2OOrth.
11.11.10SharpiteCa(UO2)3(CO3)4 · 3H2OOrth. mmm (2/m 2/m 2/m) : Cmcm
11.11.11VogliteCa2Cu(UO2)(CO3)4 · 6H2OMon.
11.11.13SwartziteMgCa(UO2)(CO3)3 · 12H2OMon. 2/m : P21/m
11.11.14RabbittiteCa3Mg3(UO2)2(CO3)6(OH)4 · 18H2OMon.
11.11.15Kamotoite-(Y)Y2(UO2)4(CO3)3O4 · 14H2OMon. 2/m
11.11.16Shabaite-(Nd)Ca(Nd,Sm,Y)2(UO2)(CO3)4(OH)2 · 6H2OTric. 1 : P1
11.11.17Astrocyanite-(Ce)Cu2(Ce,Nd,La)2(UO2)(CO3)5(OH)2 · 1.5H2OHex.
11.11.18Bijvoetite-(Y)Y8(UO2)16(CO3)16O8(OH)8 · 39H2OMon.
11.11.20ZnucaliteZn12Ca(UO2)(CO3)3(OH)22 · 4H2OOrth.

Fluorescence of AndersoniteHide

Bright pastel green (a unique color)(SW and LW UV).

Other InformationHide

Soluble in water.
Health Risks:
Contains uranium - always wash hands after handling. Avoid inhaling dust when handling or breaking. Never lick or ingest. Avoid prolonged exposure in proximity of the body. Store away from inhabited areas.

References for AndersoniteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Axelrod, J.M., Grimaldi, F.S., Milton, C., Murata, K.J. (1951) The uranium minerals from the Hillside mine, Yavapai County, Arizona. American Mineralogist: 36: 1-22.
Palache, C., Berman, H., Frondel, C. (1951) The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Etc. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged: 239.
Coda, A., Della Giusta, A., Tazzoli, V. (1981) The structure of synthetic andersonite, Na2Ca[UO2(CO3)3]·xH2O (x~5.6). Acta Crystallographica: B37: 1496-1500.
Mereiter, K. (1986) Neue kristallographische Daten über das Uranmineral Andersonit. Anzeiger Österreichen Akademie der Wissenschaften, Mathematisch-Naturwissenschaftliche Klasse: 123(3): 39-41.
Vochten, R., Van Haverbeke, L., Van Springel, K. (1993) Synthesis of liebigite and andersonite, and study of their thermal behavior and luminescence. The Canadian Mineralogist: 31: 167-171.
Vochten, R., Van Haverbeke, L., Van Springel, K. (1994) The structure and physicochemical characteristics of a synthetic phase compositionally intermediate between liebigite and andersonite. The Canadian Mineralogist: 32: 553-561.
Kubatko, K.-A., Helean, K., Navrotsky, A., Burns, P.C. (2005) Thermodynamics of uranyl minerals: Enthalpies of formation of rutherfordine, UO2CO3, andersonite, Na2CaUO2(CO3)3(H2O)5, and grimselite, K3NaUO2(CO3)3H2O: American Mineralogist: 90: 1284-1290.
Burns, P.C. (2005) U 6+ minerals and inorganic compounds: insights into an expanded structural hierarchy of crystal structures. The Canadian Mineralogist: 43: 1839-1894.
Plášil, J., Čejka, J. (2015) A note on the molecular water content in uranyl carbonate mineral andersonite. Journal of Geosciences: 60: 181-187.

Internet Links for AndersoniteHide

Localities for AndersoniteHide

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

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
  • Mendoza Province
    • Malargüe Department
      • Pampa Amarilla mining district
Toubes, R.O., Chaar, E. Spikerman, J.P. Minerales radiactivos de la Republica Argentina. 5 Congreso Geologico Argentino, 1: 249-260. 1973; American Mineralogist: 51: 1-13
  • Lower Austria
    • Neunkirchen District
      • Semmering
Tufar, W. (1967): Andersonit, ein neuer Uranmineralfund aus Österreich. N. Jb. Mineral., Abh., 106, 191-199.; Huber, S. und Huber, P. (1977): Mineral-Fundstellen Band 8: Oberösterreich, Niederösterreich und Burgenland. C. Weise Verlag, München, 270 pp.; Tufar, W. (1982): A new type of sulphosalt mineralization in the Myrthengraben gypsum deposit, Semmering, Lower Austria. Pp. 131-140 in: Amstutz, G. C. et al. (Eds.): Ore Genesis - the State of the Art, Springer, Berlin-Heidelberg-New York.
Czech Republic
  • Karlovy Vary Region
    • Karlovy Vary District
Lapis 2002(7/8), 63-65
        • Svornost Mine (Einigkeit Mine)
Plášil, J., Hloušek, J., Kasatkin, A.V., Belakovskiy, D.I., Čejka, J., Chernyshov, D. (2015): Ježekite, Na8[(UO2)(CO3)3](SO4)2·3H2O, a new uranyl mineral from Jáchymov, Czech Republic. Journal of Geosciences, 60, 259-267
Olds, T.A., Plášil, J., Kampf, A.R., Dal Bo, F., Burns, P.C. (2018): Paddlewheelite, a New Uranyl Carbonate from the Jáchymov District, Bohemia, Czech Republic. Minerals, 8, 511
  • South Bohemian Region
    • Písek District
      • Kovářov
        • Předbořice
Pauliš P., Kopecký S., Černý P. 2007: Uranové minerály České Republiky a jejich naleziště. 1. část. (Kutna Hora, issue 1)
  • Vysočina Region
    • Žďár nad Sázavou District
      • Rožná
        • Rožná deposit
Petr Pauliš, Stanislav Kopecký, Pavel Černý: Uranové minerály České republiky a jejich lokality 2007; Bull. mineral.-petrolog. Odd. Nár. Muz. (Praha) (2008) 16, 2, 212-216
SeJkora, J., Pauliš, P., Jelínek, J., & Vlk, J. (2008). The finds of čejkaite at mine adit of the uranium deposit Rožná, Czech Republic. Bulletin Mineralogicko-Petrologickeho Oddeleni Narodniho Muzea v Praze, 16(2).
  • Occitanie
    • Hérault
      • Lodève
        • Le Bosc
Le Règne Minéral, Hors Série IV (1998)
  • Thuringia
    • Altenburger Land
      • Löbichau
T. Witzke & F. Rüger: Lapis 1998(7/8), 26-64
  • Attica
    • East Attica
      • Lavreotiki
        • Lavrion mining district
          • Plaka
            • Paliokamariza Mines (Paleokamariza Mines)
Rieck, B., Kolitsch, U., Voudouris, P., Giester, G. and Tzeferis, P. (2018): Weitere Neufunde aus Lavrion, Griechenland. Mineralien-Welt 29 (5), 32-77 (in German).
  • Baranya County
    • Pécs District
Szakáll & Jánosi: minerals of hungary, 1995
Szakáll & Jánosi: Minerals of Hungary, 1995
  • Trentino-Alto Adige
    • Trento Province (Trentino)
      • Valdaone
        • Daone
          • Daone Valley
            • Limes
Campostrini, I., Demartin, F., Gramaccioli, C.M. (2005): Val Daone. Minerali secondari del giacimento uranifero presso Limes, Daone (TN). Rivista Mineralogica Italiana, 4/2005, 228-240.
  • Gifu Prefecture
    • Mizunami City
      • Tsukiyoshi uranium ore deposits
The Mineral Species of Japan (5th ed) Matsubara
  • Bihor
    • Nucet
www.minerals-of-the (2009)
  • Banská Bystrica Region
    • Banská Štiavnica District
Števko M., Sejkora J., Plášil J. (2012): Supergénna uránová mineralizácia na ložisku Banská Štiavnica (Slovenská republika). Bull. mineral.-petrolog. Odd. Nár. Muz. (Praha), 20, 1, 110-120 (in Slovak with English abstract).
  • Catalonia
    • Lleida (Lérida)
      • El Pallars Jussà
        • La Vall Fosca
          • La Torre de Cabdella (La Torre de Capdella)
            • Castell-estaó
CMS analysis; Castillo-Oliver, M.; Melgarejo, J.C.; Torró, L.; Villanova-de-Benavent, C.; Campeny, M.; Díaz-Acha, Y.; Amores-Casals, S.; Xu, J.; Proenza, J.; Tauler, E. Sandstone-Hosted Uranium Deposits as a Possible Source for Critical Elements: The Eureka Mine Case, Castell-Estaó, Catalonia. Minerals 2020, 10, 34.
  • Örebro County
    • Lindesberg
No reference listed
  • England
    • Cornwall
      • St Just
        • Pendeen
Elton, N.J. and Hooper, J.J. (1992): Mineralogical Magazine, 56(1), 124-125.
    • Devon
      • West Devon
        • Dartmoor Forest
          • Princetown
Alysson Rowan Collection
  • Arizona
    • Coconino County
      • Cameron Mining District
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 110; Bollin, E.M. & P.F. Kerr (1958), Uranium mineralization near Cameron, AZ, in New Mexico Geol. Soc. Guidebook 9th Field Conf., Black Mesa Basin, northeastern AZ: 164-168.; Bollin, E. M., & Kerr, P. F. (1958). Uranium mineralization near Cameron, Arizona. In Guidebook of the Black Mesa Basin, northern Arizona: New Mexico Geological Society, 9th Field Conference Society Guidebook (Vol. 9, pp. 161-168).
    • Yavapai Co.
      • Eureka Mining District
        • Bagdad
          • Bozarth Mesa
Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 236, 239; Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 365, 387; Frondel, C.C. (1958), Systematic mineralogy of uranium and thorium, USGS Bull. 1064: 119; Dana 7:II:236 & 238; Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 51.; Axelrod, J.M., et al (1951), The uranium minerals from the Hillside mine, Yavapai County, Arizona, American Mineralogist: 36: 1-22.
  • Colorado
    • Mesa Co.
      • Gateway
Kampf, A.R., Nash, B.P., Marty, J., Hughes, J.M. (2017) Mesaite, CaMn2+5(V2O7)3·12H2O, a new vanadate mineral from the Packrat mine, near Gateway, Mesa County, Colorado, USA. Mineralogical Magazine: 81: 319–327.
    • Montrose Co.
      • Bull Canyon Mining District
Collection of Alex Earl
    • San Miguel Co.
      • Slick Rock Mining District
Travis Olds collection; Kampf, A. R., Plášil, J., Nash, B. P., & Marty, J. (2019). Ammoniomathesiusite, a new uranyl sulfate–vanadate mineral from the Burro mine, San Miguel County, Colorado, USA. Mineralogical Magazine, 83(1), 115-121.
Minerals of Colorado (1997) Eckel, E. B.
  • Nevada
    • Lander Co.
      • Reese River Mining District
Jensen, M. and J. Herrmann (2012) Uranium mineralization at the Apex Mine, Lander County, Nevada. Rocks and Minerals 87:270-276
  • New Mexico
Northrop, Minerals of New Mexico, 3rd Rev. Ed., 1996
    • McKinley Co.
Northrop, Minerals of New Mexico, 3rd Rev. Ed., 1996
NMBMMR Memoir 15 Geology and Technology of the Grants Uranium Region
NMBMMR Memoir 15 Geology and Technology of the Grants Uranium Region; Am Min 51:929-930
NMBMMR Memoir 15 Geology and Technology of the Grants Uranium Region
NMBMMR Memoir 15 Geology and Technology of the Grants Uranium Region
  • Pennsylvania
    • Carbon Co.
      • Jim Thorpe (Mauch Chunk)
Arthur Montgomery Mineralogy of Pennsylvania 1922-1965: Supplementing & Updating Gordon’s “The Mineralogy of Pennsylvania"
  • Utah
    • Emery Co.
      • San Rafael Mining District (San Rafael Swell)
        • Delta
UGMS Bull 117 Minerals and Mineral Localities of Utah; Page, L. R.; Stocking, H. E.; Smith, H. B. (1956) Contributions to the geology of uranium and thorium by the United States Geological Survey and Atomic Energy Commission for the United Nations International Conference on Peaceful Uses of Atomic Energy, Geneva, Switzerland, 1955. USGS Professional Paper 300 pp263-279
    • Grand Co.
      • Moab Mining District
        • Moab
No reference listed
          • Cane Wash
Rruff specimen number R080133
      • Thompsons Mining District
        • D-Day Mine group
Collections of Chris Clemens, and Matt Wall
UGMS Bull 117 Minerals and Mineral Localities of Utah
        • Yellow Cat Mesa
Collected by and in the collection of Brent Thorne.; Kasatkin, A.V., Plášil, J., Marty, J., Belakovskiy, D.I., Lykova, I.S. (2014): Nestolaite, CaSeO3·H2O, a new mineral from the Little Eva mine, Grand County, Utah, USA. Mineralogical Magazine, 78, 497-505.; Kasatkin, A. V., Plasil, J., Pekov, I. V., Belakovskiy, D. I., Nestola, F., Cejka, J., ... & Thorne, B. (2015). Karpenkoite, Co3 (V2O7)(OH) 2· 2H2O, a cobalt analogue of martyite from the Little Eva mine, Grand County, Utah, USA. Journal of Geosciences, 60(4), 251-257.
          • Parco Mine Group
UGMS Bull 117 Minerals and Mineral Localities of Utah
    • San Juan Co.
      • Blanding
Rocks & Minerals: 68(6): 398-400.
      • Cane Creek
      • Cane Springs
Can Min 14:429-436
UGMS Bull 117 Minerals and Mineral Localities of Utah
UGMS Bull 117 Minerals and Mineral Localities of Utah
Uranium Guidebook for the Paradox; Uranium Guidebook for the Paradox
Specimen in the British Museum
      • Red Canyon
Joe Marty (2015) Minerals of the Blue Lizard Mine and other Western Localities, NCMA Annual Symposium 2015
Travis Olds collection; Kampf, A.R., Plášil, J., Kasatkin, A.V., Marty, J., and Čejka, J. (2018) Markeyite, a new calcium uranyl carbonate mineral from the Markey mine, San Juan County, Utah, USA. Mineralogical Magazine, 82, 1089-1100.
Rick Dalrymple Collection
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