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Metauranocircite-I

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Formula:
Ba(UO2)2(PO4)2 · 6H2O
System:
Monoclinic
Colour:
Greensih yellow, ...
Lustre:
Resinous, Waxy, Greasy, Pearly
Hardness:
2 - 2½
Name:
Named in 1904 by Paul Gaubert for Meta- and its dehydrated relationship to uranocircite.
Isostructural with:
Meta-autunite Group.
Rapid dehydration of uranocircite in dry atmospheres at normal temperature results in in metauranocircite-I (Walenta, 1963).
Metauranocircite may be more common than realized because of its similar appearance to meta-autunite and other species.


Classification of Metauranocircite-I

Approved, 'Grandfathered' (first described prior to 1959)
7/E.02-110
8.EB.10

8 : PHOSPHATES, ARSENATES, VANADATES
E : Uranyl phosphates and arsenates
B : UO2:RO4 = 1:1
40.2a.3.2

40 : HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
2a : AB2(XO4)2·xH2O, containing (UO2)2+
19.11.21

19 : Phosphates
11 : Phosphates of U

Physical Properties of Metauranocircite-I

Resinous, Waxy, Greasy, Pearly
Diaphaneity (Transparency):
Transparent, Translucent
Colour:
Greensih yellow, yellowish green
Streak:
yellowish white
Hardness (Mohs):
2 - 2½
Tenacity:
Very brittle
Cleavage:
Perfect
{001}
Density:
3.94 g/cm3 (Measured)    3.95 g/cm3 (Calculated)

Optical Data of Metauranocircite-I

Type:
Biaxial (-)
RI values:
nα = 1.610 nβ = 1.621 - 1.623 nγ = 1.622 - 1.623
Birefringence:
0.002
Max Birefringence:
δ = 0.012 - 0.013
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
relatively strong
Optical Extinction:
X = c
Pleochroism:
Weak
Comments:
X = colorless
Y = Z = Pale canary yellow

Chemical Properties of Metauranocircite-I

IMA Formula:
Ba(UO2)2(PO4)2 · 6H2O
Mindat.org Formula:
Ba(UO2)2(PO4)2 · 7H2O

Elements listed in formula:

Crystallography of Metauranocircite-I

Crystal System:
Monoclinic
Class (H-M):
2 - Sphenoidal
Space Group:
P21
Cell Parameters:
a = 6.943(2) Å, b = 17.634(6) Å, c = 6.952(2) Å
β = 90.023(7)°
Ratio:
a:b:c = 0.394 : 1 : 0.394
Unit Cell Volume:
V 851.2 ų
Z:
2
Morphology:
Platy square crystals, also earthy
Comment:
Pseudotetragonal metrics; twinned. Data for synthetic material.
X-Ray Powder Diffraction Data:
d-spacingIntensity
8.82 (100)
5.46 (15)
4.410 (55)
3.723 (50)
2.708 (20)
2.205 (18)
1.4621 (18)
Comments:
ICDD 36-407

Occurrences of Metauranocircite-I

Type Occurrence of Metauranocircite-I

Relationship of Metauranocircite-I to other Species

Other Members of Group:
AbernathyiteK(UO2)(AsO4) · 3H2O
Chernikovite(H3O)2(UO2)2(PO4)2 · 6H2O
LehneriteMn2+(UO2)2(PO4)2 · 8H2O
Meta-ankoleiteK2(UO2)2(PO4)2 · 6H2O
Meta-autuniteCa(UO2)2(PO4)2 · 6-8H2O
MetaheinrichiteBa(UO2)2(AsO4)2 · 8H2O
MetakahleriteFe2+(UO2)2(AsO4)2 · 8H2O
MetakirchheimeriteCo(UO2)2(AsO4)2 · 8H2O
MetalodèviteZn(UO2)2(AsO4)2 · 10H2O
MetanováčekiteMg(UO2)2(AsO4)2 · 8H2O
MetatorberniteCu(UO2)2(PO4)2 · 8H2O
MetauranospiniteCa(UO2)2(AsO4)2 · 8H2O
MetazeuneriteCu(UO2)2(AsO4)2 · 8H2O
Natrouranospinite(Na2,Ca)(UO2)2(AsO4)2 · 5H2O
Uramarsite(NH4,H3O)2(UO2)2(AsO4,PO4)2 · 6H2O
Uramphite(NH4)2(UO2)2(PO4)2 · 6H2O
8.EB.05AutuniteCa(UO2)2(PO4)2 · 10-12H2O
8.EB.05HeinrichiteBa(UO2)2(AsO4)2 · 10H2O
8.EB.05KahleriteFe2+(UO2)2(AsO4)2 · 12H2O
8.EB.05Nováčekite-IMg(UO2)2(AsO4)2 · 12H2O
8.EB.05SaléeiteMg(UO2)2(PO4)2 · 10H2O
8.EB.05TorberniteCu(UO2)2(PO4)2 · 12H2O
8.EB.05UranocirciteBa(UO2)2(PO4)2 · 10H2O
8.EB.05UranospiniteCa(UO2)2(AsO4)2 · 10H2O
8.EB.05XiangjiangiteFe3+(UO2)4(PO4)2(SO4)2(OH) · 22H2O
8.EB.05ZeuneriteCu(UO2)2(AsO4)2 · 12H2O
8.EB.05MetarauchiteNi(UO2)2(AsO4)2 · 8H2O
8.EB.05RauchiteNi(UO2)2(AsO4)2 · 10H2O
8.EB.10BassetiteFe2+(UO2)2(PO4)2(H2O)10
8.EB.10LehneriteMn2+(UO2)2(PO4)2 · 8H2O
8.EB.10Meta-autuniteCa(UO2)2(PO4)2 · 6H2O
8.EB.10MetasaléeiteMg(UO2)2(PO4)2 · 8H2O
8.EB.10MetauranospiniteCa(UO2)2(AsO4)2 · 8H2O
8.EB.10MetaheinrichiteBa(UO2)2(AsO4)2 · 8H2O
8.EB.10MetakahleriteFe2+(UO2)2(AsO4)2 · 8H2O
8.EB.10MetakirchheimeriteCo(UO2)2(AsO4)2 · 8H2O
8.EB.10MetanováčekiteMg(UO2)2(AsO4)2 · 4-8H2O
8.EB.10MetatorberniteCu(UO2)2(PO4)2 · 8H2O
8.EB.10MetazeuneriteCu(UO2)2(AsO4)2 · 8H2O
8.EB.10PrzhevalskitePb(UO2)2(PO4)2 · 4H2O
8.EB.10Meta-lodèviteZn(UO2)2(AsO4)2 · 10H2O
8.EB.15AbernathyiteK(UO2)AsO4 · 3H2O
8.EB.15Chernikovite(H3O)(UO2)(PO4) · 3H2O
8.EB.15Meta-ankoleiteK(UO2)(PO4) · 3H2O
8.EB.15NatrouranospiniteNa2(UO2)2(AsO4)2 · 5H2O
8.EB.15Trögerite(H3O)(UO2)(AsO4) · 3H2O
8.EB.15UramphiteNH4(UO2)PO4 · 3H2O
8.EB.15UramarsiteNH4(UO2)AsO4 · 3H2O
8.EB.20ThreadgolditeAl(UO2)2(PO4)2(OH) · 8H2O
8.EB.20ChistyakovaiteAl(UO2)2(AsO4)2F · 6.5H2O
8.EB.25ArsenuranospathiteAl(UO2)2(AsO4)2F · 20H2O
8.EB.25Uranospathite(Al,◻)(UO2)2F(PO4)2 · 20(H2O,F)
8.EB.30VochteniteFe2+Fe3+(UO2)4(PO4)4(OH) · 12-13H2O
8.EB.35CoconinoiteFe23+Al2(UO2)2(PO4)4(SO4)(OH)2 · 20H2O
8.EB.40RanunculiteAl(UO2)(PO3OH)(OH)3 · 4H2O
8.EB.45TrianguliteAl3(UO2)4(PO4)4(OH)5 · 5H2O
8.EB.50FurongiteAl13(UO2)7(PO4)13(OH)14 · 58H2O
8.EB.55SabugaliteHAl(UO2)4(PO4)4 · 16H2O
19.11.1LermontoviteU4+PO4(OH) · H2O
19.11.2MetavanmeersscheiteU(UO2)3(PO4)2(OH)6 · 2H2O
19.11.3VanmeersscheiteU(UO2)3(PO4)2(OH)6 · 4H2O
19.11.4Chernikovite(H3O)(UO2)(PO4) · 3H2O
19.11.5VyacheslaviteU4+PO4(OH) · 2.5H2O
19.11.6MetanatroautuniteNa(UO2)(PO4) · 3H2O
19.11.7YingjiangiteK2Ca(UO2)7(PO4)4(OH)6 · 6H2O
19.11.8Meta-ankoleiteK(UO2)(PO4) · 3H2O
19.11.9UramphiteNH4(UO2)PO4 · 3H2O
19.11.10TorberniteCu(UO2)2(PO4)2 · 12H2O
19.11.11MetatorberniteCu(UO2)2(PO4)2 · 8H2O
19.11.12SaléeiteMg(UO2)2(PO4)2 · 10H2O
19.11.13Ningyoite(U,Ca,Ce)2(PO4)2 · 1-2H2O
19.11.14Meta-autuniteCa(UO2)2(PO4)2 · 6H2O
19.11.15AutuniteCa(UO2)2(PO4)2 · 10-12H2O
19.11.16Pseudo-autunite(H3O)4Ca2(UO2)2(PO4)4 · 5H2O
19.11.17PhurcaliteCa2(UO2)3O2(PO4)2 · 7H2O
19.11.18PhosphuranyliteKCa(H3O)3(UO2)7(PO4)4O4 · 8H2O
19.11.19UlrichiteCaCu(UO2)(PO4)2 · 4H2O
19.11.20BergeniteCa2Ba4(UO2)9O6(PO4)6 · 16H2O
19.11.22UranocirciteBa(UO2)2(PO4)2 · 10H2O
19.11.23RanunculiteAl(UO2)(PO3OH)(OH)3 · 4H2O
19.11.24TrianguliteAl3(UO2)4(PO4)4(OH)5 · 5H2O
19.11.25MunditeAl(UO2)3(PO4)2(OH)3 · 5.5H2O
19.11.26UpaliteAl(UO2)3(PO4)2O(OH) · 7H2O
19.11.27FurongiteAl13(UO2)7(PO4)13(OH)14 · 58H2O
19.11.28ThreadgolditeAl(UO2)2(PO4)2(OH) · 8H2O
19.11.29PhuralumiteAl2(UO2)3(PO4)2(OH)6 · 10H2O
19.11.30MoreauiteAl3(UO2)(PO4)3(OH)2 · 13H2O
19.11.31SabugaliteHAl(UO2)4(PO4)4 · 16H2O
19.11.32Uranospathite(Al,◻)(UO2)2F(PO4)2 · 20(H2O,F)
19.11.33AlthupiteAlTh(UO2)7(PO4)4O2(OH)5 · 15H2O
19.11.34Françoisite-(Nd)Nd(UO2)3(PO4)2O(OH) · 6H2O
19.11.35Kivuite(Th,Ca,Pb)(UO2)4(HPO4)2(OH)8 · 7H2O
19.11.36ParsonsitePb2(UO2)(PO4)2 · 0-2H2O
19.11.37DewindtiteH2Pb3(UO2)6O4(PO4)4 · 12H2O
19.11.38DumontitePb2(UO2)3(PO4)2O2 · 5H2O
19.11.39PrzhevalskitePb(UO2)2(PO4)2 · 4H2O
19.11.40LehneriteMn2+(UO2)2(PO4)2 · 8H2O
19.11.41BassetiteFe2+(UO2)2(PO4)2(H2O)10
19.11.42VochteniteFe2+Fe3+(UO2)4(PO4)4(OH) · 12-13H2O

Other Names for Metauranocircite-I

Name in Other Languages:

Other Information

Very fluorescent yellow-green in SW and LW UV
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Metauranocircite-I

Reference List:
Gaubert, Paul, 1904, Produits deshydration de quelque phosphates et orientation du chlorure de baryum sur les mineraux des groups de l'autunite, Bulletin Soc. franc. Min., v. 27: 212-216.

Beintema, J. (1938): Composition and crystallography of autunite and the meta-autunites. Recueil des Travaux Chimiques des Pays-Bas et de la Belgique 57, 155-175.

Palache, Charles, Harry Berman & Clifford Frondel (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Seventh edition, Volume II: 987-988.

Nuffield E.W., Milne I.H. (1953): American Mineralogist: 38: 476-488.

Frondel, Clifford (1958), Systematic Mineralogy of Uranium and Thorium, U.S. Geological Survey Bull. 1064: 211-215.

Walenta, K. (1958): Jahresheft geol. Landesamt Baden-Württemberg, 6, 113-135.

Bulletin de la Société française de Minéralogie et de Cristallographie: 80: 32-38.

Khosrawan-Sazedj, F. (1982a) The crystal structure of meta-uranocircite II, Ba(UO2)2(PO4)2·6H2O. Tschermaks Mineralogische und Petrographische Mitteilungen: 29: 197.

Tschermaks Mineralogische und Petrographische Mitteilungen (1982): 29: 193 ("Meta-uranocircite II").

Bulletin of the Czech National Museum, Prague (1986): 155: 81-90 ("Meta-uranocircite II").

Mineralogical Magazine (1992): 56: 367.

Burns, P.C. (2005) U 6+ minerals and inorganic compounds: insights into an expanded structural hierarchy of crystal structures. Canadian Mineralogist: 43: 1839-1894.

Locock, A. J., Burns, P. C. & Flynn, T. M. (2005): Structures of strontium - and barium-dominant compounds that contain the autunite-type sheet. Canadian Mineralogist 43, 721-733. [synth. meta-uranocircite I]

Internet Links for Metauranocircite-I

mindat.org URL:
https://www.mindat.org/min-2665.html
Please feel free to link to this page.

Localities for Metauranocircite-I

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Austria
 
  • Lower Austria
    • Waldviertel
      • Großdietmanns
        • Unterlembach
Brandstätter, G. & Niedermayr, G. (1990): 802. Meta-Uranocircit und Natrodufrenit vom Eichberg bei Gmünd, Niederösterreich. Pp. 271-272 in Niedermayr, G. et al. (1990): Neue Mineralfunde aus Österreich XXXIX. Carinthia II, 180./100., 245-288.; R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
  • Styria
    • Fischbacher Alpen
      • Rettenegg
        • Prinzkogel (Prinzenkogel)
R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
    • Graz
      • St Radegund
Aufschluss 1972(SB), 67-68; Adolf Alker (1967) Uranmineralien aus dem Kristallin von St. Radegund, Stmk. (https://www.museum-joanneum.at/upload/file/Mineralogie/Mitteilungen/mitt01/mitt01-02_1967_03-05_Alker.pdf)
Brazil
 
  • Minas Gerais
    • Galiléia
Atencio D, Carvalho F M S, Matioli P A (2004) Coutinhoite, a new thorium uranyl silicate hydrate, from Urucum Mine, Galiléia, Minas Gerais, Brazil. American Mineralogist 89, 721-724
  • São Paulo
    • São Paulo
D Atencio & R Hypolito ()Fosfatos e silicatos secunderos de uranio de Perus, Sao Paulo
Fosfatos e Silicatos Secundários de Urânio de Perus, São Paulo - Atencio, Daniel and Hypolito, Raphael - Revista Brasileira de Geociências, março de 1994
Canada
 
  • Nova Scotia
    • Cumberland Co.
A.K. Chatterjee, "Uranium Mineralization at McLean Point, Cumberland County", Nova Scotia Dept. Mines Report 77-1, 1977.
Czech Republic
 
  • Bohemia (Böhmen; Boehmen)
    • Hradec Králové Region
      • Krkonoše Mtn (Riesengebirge)
        • Špindlerův Mlýn (Spindlermühle)
Pauliš P., Kopecký S., Černý P. 2007: Uranové minerály České Republiky a jejich naleziště. 1. část. (Kutna Hora, issue 1)
    • Karlovy Vary Region
      • Horní Slavkov (Schlaggenwald)
        • Krásno (Schönfeld)
          • Vysoký Kámen
Jirásek J. et al. (2016): Fosfáty a doprovodné minerály z živcového lomu Vysoký kámen u Krásna, Česká republika. Bulletin mineralogicko-petrologického oddělení Národního muzea v Praze, vol. 24, No. 1, pp. 80-94.
      • Krušné Hory Mts (Erzgebirge)
        • Jáchymov District (St Joachimsthal)
          • Přebuz District (Frühbuß)
            • Přebuz (Frühbuß)
Pauliš P., Kopecký S., Černý P. 2007: Uranové minerály České Republiky a jejich naleziště. 1. část. (Kutna Hora, issue 1)
      • Sokolov (Falkenau an der Eger)
        • Lokta
Pauliš P., Kopecký S., Černý P. 2007: Uranové minerály České Republiky a jejich naleziště. 1. část. (Kutna Hora, issue 1)
  • Moravia (Mähren; Maehren)
    • Olomouc Region
      • Jeseník
        • Staré Město
Pauliš P., Kopecký S., Černý P. 2007: Uranové minerály České Republiky a jejich naleziště. 1. část. (Kutna Hora, issue 1)
    • South Moravia Region
      • Tišnov
Uranové minerály České republiky a jejich naleziště = Uranmineralien der Tschechische Republik und ihre Fundstellen / Petr Pauliš, Stanislav Kopecký, Pavel Černý / Kutná Hora : Kuttna, 2007
France
 
  • Brittany
    • Morbihan
      • Guern
  • Nouvelle-Aquitaine
    • Deux-Sèvres
      • La Chapelle Largeau
Le Cahier des micromonteurs, 2002, N°75, pp 8-25
      • Le Temple
Le Cahier des micromonteurs, 2002, N°75, pp 8-25
      • Saint-Amand-sur-Sèvre
Le Cahier des micromonteurs, 2002, N°75, pp 8-25
  • Occitanie
    • Aveyron
      • Golinhac
J. Geffroy, J.A. Sarcia, J. Chervet : "Les Minéraux Uranifères Français", 1960, Institut National des Sciences et Techniques Nucléaires / Saclay - PUF.
Germany
 
  • Baden-Württemberg
    • Black Forest
      • Menzenschwand
K. Walenta: "Die Mineralien des Schwarzwaldes", Weise (Munich), 1992
Walenta: "Die Mineralien des Schwarzwaldes", Weise (Munich), 1992
      • Titisee-Neustadt
        • Hammereisenbach
K. Walenta: "Die Mineralien des Schwarzwaldes", Weise (Munich), 1992
  • Bavaria
    • Franconia
      • Spessart
        • Hösbach
          • Sailauf
            • Hartkoppe
see locality page
    • Upper Palatinate
No reference listed
  • Saxony
    • Erzgebirge
Lapis 30(7/8):78-80 (2005)
    • Vogtland
      • Zobes-Bergen District
        • Bergen U deposit
          • Bergen
Schnorrer-Köhler, G. (1991): Mineralogische Notizen V. Aufschluss 42, 155-171.; Wittern: "Mineralfundorte in Deutschland", 2001
Poland
 
  • Lower Silesia (Dolnośląskie)
    • Izerskie Mts
      • Jelenia Góra District
Mochnacka, K., Banaś, M. (2000): Occurrence and genetic relationships of uranium and thorium mineralization in the Karkonosze-Izera Block (The Sudety Mts, SW Poland). Annales Societatis Geologorum Poloniae: 70: 137-150
    • Lwówek District
      • Lubomierz commune
Mochnacka, K., Banaś, M. (2000): Occurrence and genetic relationships of uranium and thorium mineralization in the Karkonosze-Izera Block (The Sudety Mts, SW Poland). Annales Societatis Geologorum Poloniae: 70: 137-150
Portugal
 
  • Portalegre District
    • Nisa
      • Nossa Senhora da Graça
        • Poio
LNEG info; Pinto, A. J., Gonçalves, M. A., Prazeres, C., Astilleros, J. M., & Batista, M. J. (2012). Mineral replacement reactions in naturally occurring hydrated uranyl phosphates from the Tarabau deposit: Examples in the Cu–Ba uranyl phosphate system. Chemical Geology, 312, 18-26.
USA
 
  • Arizona
    • Coconino Co.
      • Cameron District
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 296, 407-408; Holland, H.D., et al (1958), The use of leachable uranium in geochemical prospecting on the Colorado Plateau-II, the distribution of leachable uranium in surface samples in the vicinity of orebodies, Econ.Geol.: 53: 190-209; Austin, S.R. (1964), Mineralogy of the Cameron area, Coconino Co., AZ, US Atomic Energy Comm. RME 99. Tech Inf. Serv., Oak Ridge, TN: 99..; 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).
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 296; Granger, H.C. (1955), Dripping Spring quartzite, AZ, in Geologic investigations of radioactive deposits - Semiannual progress report, USGS TEI 540.
  • Colorado
    • Park Co.
      • Kenosha Pass Area
Minerals of Colorado (1997) Eckels, E. B.
  • Montana
    • Jefferson Co.
      • Clancy-Lump Gulch District
Am Min (1957) 42:222-239
  • Nevada
    • Lander Co.
      • Reese River District
Jensen, M. and J. Herrmann (2012) Uranium mineralization at the Apex Mine, Lander County, Nevada. Rocks and Minerals 87:270-276
  • South Dakota
      • Slim Buttes
SDSMT Bull 18 Roberts and Rapp "Mineralogy of the Black Hills"
    • Lawrence Co.
      • Bald Mountain District
Handbook of Mineralogy
      • Lead District
Handbook of Mineralogy
    • Pennington Co.
      • Scenic
R&M 75:3 pp 156-169
  • Utah
    • Juab Co.
UGMS Bull 117 Minerals and Mineral Localities of Utah
  • Virginia
    • Pittsylvania Co.
Jerden (2001)
  • Wyoming
http://rruff.geo.arizona.edu/doclib/hom/metauranocircite.pdf.
Mineral and/or Locality  
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