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Uranopilite

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Formula:
(UO2)6(SO4)O2(OH)6 · 14H2O
Water content appears to be variable (12-14H2O).
System:
Monoclinic
Colour:
Bright yellow, ...
Lustre:
Silky, Earthy
Name:
The name reflects its composition and habit, containing URANium plus Greek πίλος = "PILos" "felt", alluding to its felt-like appearence.
May dehydrate to Meta-uranopilite.

Classification of Uranopilite

Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
7.EA.05

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
E : Uranyl sulfates
A : Without cations
31.2.6.1

31 : HYDRATED SULFATES CONTAINING HYDROXYL OR HALOGEN
2 : (AB)6(XO4)Zq·xH2O
25.8.9

25 : Sulphates
8 : Sulphates of Sb, V, Cr and U
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Type Occurrence of Uranopilite

Year of Discovery:
1882

Physical Properties of Uranopilite

Silky, Earthy
Colour:
Bright yellow, straw-yellow; colourless to light yellow in transmitted light.
Cleavage:
Perfect
On {010}, perfect.
Density:
3.7 - 4 g/cm3 (Measured)    

Crystallography of Uranopilite

Crystal System:
Monoclinic
Morphology:
Occurs as velvety incrustations and globular or reniform masses comprised of microscopic needles or laths, elongated [001] and flattened {010}.
X-Ray Powder Diffraction Data:
d-spacingIntensity
9.18 (8)
7.12 (10)
5.51 (4)
4.28 (8)
3.65 (5)
3.31 (4)
2.99 (3)

Optical Data of Uranopilite

Type:
Biaxial (+)
RI values:
nα = 1.621 - 1.623 nβ = 1.623 - 1.625 nγ = 1.632 - 1.634
2V:
Measured: 50° , Calculated: 52°
Max Birefringence:
δ = 0.011
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
r > v to r < v strong
Pleochroism:
Not Visible

Chemical Properties of Uranopilite

Formula:
(UO2)6(SO4)O2(OH)6 · 14H2O

Water content appears to be variable (12-14H2O).
Essential elements:
All elements listed in formula:

Relationship of Uranopilite to other Species

7.EA.05Metauranopilite(UO2)6(SO4)(OH)10 · 5H2O
7.EA.10Jáchymovite(UO2)8(SO4)(OH)14 · 13H2O
25.8.1Klebelsbergite(SbO)4(SO4)(OH)2
25.8.2CoquanditeSb6+xO8+x(SO4)(OH)x(H2O)1- x (x = 0.3)
25.8.3PeretaiteCa(SbO)4(SO4)2(OH)2 · 2H2O
25.8.4CannoniteBi2(SO4)O(OH)2
25.8.5Minasragrite(V4+O)(SO4) · 5H2O
25.8.6Stanleyite(V4+O)(SO4) · 6H2O
25.8.7Redingtonite(Fe2+,Mg,Ni)(Cr,Al)2(SO4)4·22H2O
25.8.8Metauranopilite(UO2)6(SO4)(OH)10 · 5H2O
25.8.10NatrozippeiteNa5(UO2)8(SO4)4O5(OH)3 · 12H2O
25.8.11ZippeiteK3(UO2)4(SO4)2O3(OH) · 3H2O
25.8.12JohanniteCu(UO2)2(SO4)2(OH)2 · 8H2O
25.8.13MagnesiozippeiteMg(UO2)2(SO4)O2 · 3.5H2O
25.8.14ZinczippeiteZn(UO2)2(SO4)O2 · 3.5H2O

Other Names for Uranopilite

Name in Other Languages:

Other Information

Bright yellowish-green (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 Uranopilite

Reference List:
Dauber (1854) Annalen der Physik, Halle, Leipzig: 92: 237 (as Basisches Uransulphat).

Weisbach A. (1882), Mineralogische Notizen II. 17. Uranocher, Neues Jahrbuch für Mineralogie, Bd. 2, 258-259.

Larsen, E.S. (1921) The Microscopic Determination of the Nonopaque Minerals, First edition, USGS Bulletin 679: 150.

Mellon in: Buttgenbach (1935) Mém. Inst. Roy. Colon. Belge: 6: 449.

Nováček (1935) Soc. sc. Bohême, Mém., no. 7.

Nováček (1942) Vĕst. Král. ČeskéSpol. Nauk, no. 17.

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. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 581-582.

American Mineralogist (1952): 37: 950-959.

Bulletin of the National Museum, Prague (1984): 153: 172-182.

Neues Jahrbuch für Mineralogie, Abhandlungen (1996): 170: 155.

Burns, P.C. (2001): A new uranyl sulfate chain in the structure of uranopilite. Canadian Mineralogist 39, 1139-1146.

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

Frost, R.L.; Weier, M.L.; Ayoko, G.A.; Martens, W.; Čejka, J. (2006): An XRD, SEM and TG study of a uranopilite from Australia. Mineralogical Magazine, 70, 299-307.

Internet Links for Uranopilite

Localities for Uranopilite

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.
Argentina
 
  • Mendoza
    • Malargüe Department
      • Pampa Amarilla District
Brodtkorb, M.K. de, Mineralogia y consideraciones geneticas del yacimiento Huemul. Provincia de Mendoza. Revista de la Asociacion Geologica Argentina 21 (3): 165-179. 1966
Australia
 
  • Northern Territory
    • West Arnhem Region
      • Kakadu
        • Ranger Mine
      • South Alligator River
Henry, D.A., Pogson, R.E. and Williams, P.A. (2005) Threadgoldite from the South Alligator Valley uranium field, Northern Territory, Australia: second world occurrence. , Australian Journal of Mineralogy, 11, 7-11
Austria
 
  • Carinthia
    • Friesach - Hüttenberg area
      • Hüttenberg
G. Niedermayr, I. Praetzel: Mineralien Kärntens, 1995
Canada
 
  • Saskatchewan
    • Beaverlodge Region
J. Traill (1952) Synthesis and x-ray study of uranium sulphate minerals . American Mineralogist 37:394-406.
China
 
  • Hunan Province
    • Chenzhou Prefecture
      • Suxian District
- Jian-Wei Li, Mei-Fou Zhou, Xian-Fu Li, Zi-Jin Li, and Zhao-Ren Fu (2002): Mineralium Deposita 37, 213-225.
  • Inner Mongolia Autonomous Region
    • Alxa League (Alashan Prefecture)
      • Alxa Left Banner (Alashan Zuoqi)
        • Jilantai
National Geological Archives of China database, record no. X00026452
  • Shaanxi Province
    • Xi'an Prefecture
      • Lantian Co.
Zhang Jianguo, Chen Shaoqing, Rao Sun and Qi Jing (2004). In: IAEA Technical Document 1419.
Czech Republic
 
  • Bohemia (Böhmen; Boehmen)
    • Central Bohemia Region
Sejkora, J.: Uranopilit z Předbořic. Bulletin České geologické společnosti, 1993, roč. 1, č. 1-2, s. 35-36.
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: 582.
        • Březové Hory ore region (Birkenberg)
          • Březové Hory deposit
Plasil (2005)
        • Háje
Plášil, J. et al.: Supergenní mineralizace z haldy šachty č. 16 Příbram - Háje. Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 2008, vol. 16, 1, 43-55.
    • Karlovy Vary Region
      • Horní Slavkov (Schlaggenwald)
Sejkora, J. & Plasil, J. (2009): Mineralien aus dem Uranrevier Horni Slavkov. Lapis 34 (7-8), 63-67; 70 (in German).; Plášil, J., Tvrdý, J.: Uranopilit a jáchymovit z uranového ložiska Horní Slavkov. Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 2008, vol. 16, 1, 61-64.
      • Krušné Hory Mts (Erzgebirge)
        • Jáchymov District (St Joachimsthal)
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: 582; American Mineralogist (1952): 37: 950.; Bridget E. McCollam (2002) ZIPPEITES: CHEMICAL CHARACTERIZATION AND POWDER X-RAY DIFFRACTION STUDIES OF SYNTHETIC AND NATURAL SAMPLES MS Thesis, Notre Dame University
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: 599; Lapis 2002(7/8), 51
            • Rovnost Mine (Werner Mine)
Plášil, J., Dušek, M., Novák, M., Čejka, J., Císařová, I., Škoda, R. (2011): Sejkoraite-(Y), a new member of the zippeite group containing trivalent cations from Jáchymov (St. Joachimsthal), Czech Republic: Description and crystal structure refinement. American Mineralogist, 96, 983-991.
J. Plášil, J. Hauser, V. Petříček, N. Meisser, S. J. Mills, R. Škoda, K. Fejfarová, J. Čejka, J. Sejkora, J. Hloušek, J.-M. Johannet, V. Machovič, and L. Lapčák (2012): Crystal structure and formula revision of deliensite, Fe[(UO2)2(SO4)2(OH)2](H2O)7. Mineralogical Magazine 76, 2837-2860.
Tvrdý, J. & Plášil, J. (2010): Jáchymov - Reiche Erzlagerstätte und Radonbad im böhmischen Westerzgebirge. Aufschluss 61, 277-292.
    • Liberec Region
Scharm, B.: Přehled minerálů nalezených v oblasti uranových koncentrací v severočeské křídě. Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 1995, roč. 3, s. 169-172.
  • Moravia (Mähren; Maehren)
    • Olomouc Region
      • Javorník (Jauernig)
Jakub Plášil
    • Vysočina Region
      • Nové Město na Moravě
Pauliš P., Kopecký S., Černý P. 2007: Uranové minerály České Republiky a jejich naleziště. 1. část. (Kutna Hora, issue 1)
      • Žďár nad Sázavou
Mineralienwelt 1993(1), 13
Petr Pauliš
Democratic Republic of Congo (Zaïre)
 
  • Katanga (Shaba)
    • Katanga Copper Crescent
      • Shinkolobwe
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: 582; Mineralogical Record: 20: 287-288.
France
 
  • Auvergne
    • Puy-de-Dôme
      • Puy-Guillaume
        • Lachaux
Le Règne Minéral, Hors Série IV (1998)
  • Brittany
    • Morbihan
      • Le Faouët
        • Berné
R. Pierrot, L. Chauris, C. Laforêt and F. Pillard : "Inventaire Minéralogique de la France N° 9 : Morbihan", BRGM, 1980.
      • Pontivy
        • Guern
Le Règne Minéral, Hors Série IV (1998)
  • Burgundy
    • Nièvre
Le Règne Minéral, Hors Série IV, 1998
    • Saône-et-Loire
      • Issy-l'Evêque
        • Grury
Le Règne Minéral, Hors Série IV, 1998
Le Règne Minéral, Hors Série IV, 1998
  • Languedoc-Roussillon
    • Hérault
      • Lodève
[Le Cahier des Micromonteurs, 1998, 2, p.13-26]
Le Règne Minéral, Hors Série IV (1998)
[Le Règne Minéral 1997, 13, p.5-18]
Le Règne Minéral, Hors Série IV (1998)
  • Limousin
    • Corrèze
      • Davignac
M.Deliens, C.Lheur, W.Peraud & D.Virlogeux (2004)- Les minéraux d'uranium du Boucheron, près de Davignac (Corrèze)- Le Cahier des Micromonteurs, n°84, pp 3-25.
    • Haute-Vienne
      • Saint-Sylvestre
Le Règne Minéral, Hors Série IV, 1998
  • Pays de Loire
    • Loire-Atlantique
      • Gétigné
Le Règne Minéral, Hors Série IV, 1998; J. Plášil, J. Hauser, V. Petříček, N. Meisser, S. J. Mills, R. Škoda, K. Fejfarová, J. Čejka, J. Sejkora, J. Hloušek, J.-M. Johannet, V. Machovič, and L. Lapčák (2012): Crystal structure and formula revision of deliensite, Fe[(UO2)2(SO4)2(OH)2](H2O)7. Mineralogical Magazine 76, 2837-2860.
  • Poitou-Charentes
    • Deux-Sèvres
      • La Chapelle Largeau
Le Cahier des micromonteurs, 2002, N°75, pp 8-25
  • Rhône-Alpes
    • Loire
      • Saint-Just-en-Chevalet
        • Saint-Priest-la-Prugne
          • Les Bois-Noirs Mining Claim
Le Règne Minéral, Hors Série IV, 1998; J.-J. Périchaud: "Où trouver les minéraux d'Auvergne", Vol. 1, Editions l'Instant Durable (Clermont-Ferrand), 1985, p. 92
Gabon
 
  • Haut-Ogooué Province
    • Franceville
Jensen, K.A., Palenik, C.S., and Ewing, R.C. (2002) U 6+ phases in the weathering zone of the Bangombe U-deposit: observed and predicted mineralogy. Radiochim. Acta: 90: 761-769.; Janusz Janeczek (1999) Mineralogy and geochemistry of natural fission reactors in Gabon. Reviews in Mineralogy and Geochemistry, MSA, v. 38, p. 321-392
Handbook of Mineralogy
Germany
 
  • Baden-Württemberg
    • Black Forest
      • Baden-Baden
        • Müllenbach U deposit
K. Walenta: "Die Mineralien des Schwarzwaldes", Weise (Munich), 1992
      • Menzenschwand
Walenta: "Die Mineralien des Schwarzwaldes", Weise (Munich), 1992
  • Bavaria
    • Upper Palatinate
      • Wölsendorf Fluorite Mining District
        • Wölsendorf East District
          • Stulln
Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
  • Rhineland-Palatinate
    • Hunsrück
      • Birkenfeld
        • Ellweiler
Aufschluss 69/(7+8), Lapis 79/(7+8)
  • Saxony-Anhalt
Wittern: "Mineralfundorte in Deutschland", 2001
  • Saxony
    • Erzgebirge
      • Altenberg
Wittern: "Mineralfundorte in Deutschland", 2001
Lapis 17(12), 24-33
Wittern: "Mineralfundorte in Deutschland", 2001
      • Johanngeorgenstadt District
A. Weisbach (1882) Neues Jahrbuch für Mineralogie, Bd. 2, 258-259; 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: 582.
A. Weisbach (1882): Mineralogische Notizen II. 17. Uranocher.- Neues Jahrbuch für Mineralogie, vol. 2, 258-259
      • Schneeberg District
        • Neustädtel
          • Weißer Hirsch Mine (Shaft 3)
Lapis 30(7/8):41-70 (2005)
      • Schwarzenberg District
        • Pöhla
Wittern: "Mineralfundorte in Deutschland", 2001
  • Thuringia
    • Gera
      • Ronneburg U deposit
T. Witzke & F. Rüger: Lapis 1998(7/8), 26-64
T. Witzke & F. Rüger: Lapis 1998(7/8), 26-64
Germany & Czech Republic
 
  • Saxony & Ústí Region (Bohemia; Böhmen; Boehmen)
    • Erzgebirge; Krusné Hory Mts
Lapis 17(2), 31-35 (1992)
Hungary
 
  • Baranya Co.
    • Mecsek Mts
Szakáll & Jánosi: minerals of hungary, 1995
Szakáll & Jánosi: Minerals of Hungary, 1995; Sánoor Szakáll, Mária Foldvári, Gábor Papp, Péter Kovács-pálffy, Árpád Kovács (1997) Secondary Sulphate Minerals From Hungary. Acta Mineralogica-petrographica, Szeged, Xxxviii, Supplementum, 7-63.
Italy
 
  • Lombardy
    • Bergamo Province
      • Seriana Valley
        • Valgoglio
Daniele Ravagnani - I giacimenti uraniferi italiani - Gruppo Min. Lombardo - Museo Civico di Storia Naturale di Milani, 1974
  • Piedmont
    • Verbano-Cusio-Ossola Province
      • Ossola Valley
        • Antrona Valley
          • Montescheno
Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007): Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" Alba, Ed., Alba (Cuneo) 607 pp.
  • Trentino-Alto Adige (Trentino-Südtirol)
    • Trento Province
      • Giudicarie Valleys
        • Chiese Valley
          • Condino
Campostrini, I., Demartin, F., & Gramaccioli, C. M. (2006). Rio Giulis. Minerali secondari del giacimento uranifero presso Condino, Trento. Rivista Mineralogica Italiana, 30(3), 152-165.
        • Rendena Valley
          • Bocenago & Spiazzo
- Ravagnani D.(1974): I giacimenti uraniferi italiani e i loro minerali. Gruppo Mineralogico Italiano Ed., Milano (pagg.188).
Japan
 
  • Honshu Island
    • Chugoku Region
      • Tottori Prefecture
K. Watanabe (1976) Journal of the Faculty of Science, Shinshu University, 11, 53-113 (in japanese with english summary)
        • Tohgoh-cho
Watanabe (1976) Journal of the Faculty of Science, Shinshu University, 11, 53-106.
Slovakia
 
  • Košice Region
    • Spišská Nová Ves Co.
      • Hnilec
Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k
Slovenia
 
  • Todraž
Dolenec, T. (1985): Secondary uranium minerals from the Zirovski Vrh uranium ore deposit. Rudarsko-Metalurski Zbornik 32, 195-206 (in Serbo-Croatian); Dolenec, T., Lukacs, E. & Pecnik, M. (1979): Uranopilite, zippeite, and johannite - recently formed secondary uranium minerals of the Zirovski Vrh uranium ore deposit. Rudarsko-Metalurski Zbornik 26, 179-184.
Switzerland
 
  • Wallis (Valais)
    • Le Trient Valley
      • Les Marécottes
Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 420.
UK
 
  • England
    • Cornwall
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: 582.
        • St Just
          • Botallack
Golley, P. & Williams, R. (1995): Cornish Mineral Reference Manual. Endsleigh Publications (Truro), 104 pp.
Golley, P. & Williams, R. (1995): Cornish Mineral Reference Manual. Endsleigh Publications (Truro), 104 pp.
          • Pendeen
Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
USA
 
  • Arizona
    • Cochise Co.
      • Mule Mts
        • Warren District
          • Bisbee
Grant, Raymond W., Bideaux, R.A., and Williams, S.A. (2006) Minerals Added to the Arizona List 1995-2005: 9.
    • Navajo Co.
      • Navajo Indian Reservation
        • Monument Valley
Grant, Raymond W., Bideaux, R.A., and Williams, S.A. (2006) Minerals Added to the Arizona List 1995-2005: 9.
  • Colorado
    • Jefferson Co.
      • Ralston Buttes District
Minerals of Colorado (1997) E.B. Eckels; USGS: Geological Survey Circular 320
    • Mesa Co.
Minerals of Colorado (1997) Eckels, E. B.
    • Montrose Co.
Minerals of Colorado (1997) Eckels, E. B.
    • Saguache Co.
      • Cochetopa District (Cochetopa Creek District)
Minerals of Colorado (1997) Eckels, E. B.
    • San Miguel Co.
Minerals of Colorado (1997) Eckels, E. B.
  • Nevada
    • Lander Co.
      • Reese River District
Bridget E. McCollam (2002) ZIPPEITES: CHEMICAL CHARACTERIZATION AND POWDER X-RAY DIFFRACTION STUDIES OF SYNTHETIC AND NATURAL SAMPLES MS Thesis, Notre Dame University; Jensen, M. and J. Herrmann (2012) Uranium mineralization at the Apex Mine, Lander County, Nevada. Rocks and Minerals 87:270-276
  • New Jersey
    • Morris Co.
      • Mount Olive Township
        • Mount Olive
The Iron Mines of NJ (1910), Bayley:325-327.
  • New Mexico
    • Cibola Co.
Northrop, Minerals of New Mexico, 3rd. rev. ed. (1996)
NMBMMR Memoir 15 Geology and Technology of the Grants Uranium Region; American Mineralogist 47:26-33; Kittel, Kelley Melancon (1966) Uranium Deposits of the Grants Region. New Mexico Geological Society Guidebook pp 173-183; Moench, Robert Hadley; Schlee, John Stevens (1967) Geology and uranium deposits of the Laguna district, New Mexico. USGS Prof. Paper 519
    • McKinley Co.
Northrop, Minerals of New Mexico, 3rd Rev. Ed., 1996
        • Ambrosia Lake area
NMBMMR Memoir 15 Geology and Technology of the Grants Uranium Region
        • Smith Lake area
NMBMMR Memoir 15 Geology and Technology of the Grants Uranium Region
  • Utah
    • Emery Co.
      • San Rafael District (San Rafael Swell)
        • Delta
Gunnar Farber
    • Piute Co.
      • Marysvale District (Marysvale Uranium area)
UGMS Bull 117 Minerals and Mineral Localities of Utah
UGMS Bull 117 Minerals and Mineral Localities of Utah
    • San Juan Co.
      • La Sal District (Paradox Valley District)
        • Lyon Canyon Creek
Can.Min. 46,687-692(2008)
      • White Canyon District
        • White Canyon
          • Copper Point
Min Rec 2:210-211; USGS TEI #514; 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; 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 pp281-284
R&M 75:4 p240-248
    • Wayne Co.
UGMS Bull 117 Minerals and Mineral Localities of Utah
Mineral and/or Locality  
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