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Evansite

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About EvansiteHide

Formula:
Al3(PO4)(OH)6 · 6H2O
Colour:
Colourless, milk-white, lightly tinted blue, green or yellow at times; brown, reddish-brown, or red due to FeO inclusions; colourless to brown in transmitted light
Lustre:
Vitreous, Resinous, Waxy
Hardness:
3½ - 4
Specific Gravity:
1.8 - 2.2
Crystal System:
Amorphous
Name:
For British metallurgist, Brooke Evans (1797-1862), Birmingham, England, who brought the first specimens from Hungary in 1855.
A secondary amorphous mineral commonly occurring with limonite and allophane.
Needs modern reinvestigation.


Classification of EvansiteHide

Approved, 'Grandfathered' (first described prior to 1959)
8.DF.10

8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
F : With only medium-sized cations, (OH,etc.):RO4 > 3:1
42.1.2.1

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
1 : A3(XO4)Zq·xH2O
19.7.9

19 : Phosphates
7 : Phosphates of Al alone

Physical Properties of EvansiteHide

Vitreous, Resinous, Waxy
Transparency:
Transparent, Translucent
Comment:
Lustre inclines toward resinous or waxy.
Colour:
Colourless, milk-white, lightly tinted blue, green or yellow at times; brown, reddish-brown, or red due to FeO inclusions; colourless to brown in transmitted light
Streak:
White; lightly tinted.
Hardness:
3½ - 4 on Mohs scale
Tenacity:
Very brittle
Fracture:
Conchoidal
Density:
1.8 - 2.2 g/cm3 (Measured)    
Comment:
Density usually about 1.9.

Optical Data of EvansiteHide

Type:
Isotropic

Chemical Properties of EvansiteHide

Formula:
Al3(PO4)(OH)6 · 6H2O
IMA Formula:
Al3(PO4)(OH)6 · 8H2O
Common Impurities:
Cu,Pb

Crystallography of EvansiteHide

Crystal System:
Amorphous
Morphology:
Botryoidal or reniform coatings; concentric, colloform structure at times; opaline; stalactitic. Massive.

Type Occurrence of EvansiteHide

Other Language Names for EvansiteHide

German:Evansit
Spanish:Evansita

Common AssociatesHide

Allophane(Al2O3)(SiO2)1.3-2 · 2.5-3H2O
Limonite(Fe,O,OH,H2O)
Associated Minerals Based on Photo Data:
4 photos of Evansite associated with VashegyiteAl11(PO4)9(OH)6 · 38H2O
2 photos of Evansite associated with MontgomeryiteCa4MgAl4(PO4)6(OH)4 · 12H2O
1 photo of Evansite associated with PyriteFeS2
1 photo of Evansite associated with CuretoniteBa(Al,Ti)(PO4)(OH,O)F

Related Minerals - Nickel-Strunz GroupingHide

8.DF.05HotsoniteAl11(SO4)3(PO4)2(OH)21 · 16H2OTric.
8.DF.10BolivariteAl2(PO4)(OH)3 · 4-5H2OAmor.
8.DF.10Liskeardite[(Al,Fe)32(AsO4)18(OH)42(H2O)22] · 52H2OOrth.
8.DF.10Rosièresite(Pb, Cu, Al, P, O, H)Amor.
8.DF.15Rusakovite(Fe3+,Al)5(VO4,PO4)2(OH)9 · 3H2O
8.DF.20LiroconiteCu2Al(AsO4)(OH)4 · 4H2OMon. 2/m
8.DF.25SieleckiiteCu3Al4(PO4)2(OH)12 · 2H2OMon. 2/m : B2/m
8.DF.30ChalcophylliteCu18Al2(AsO4)4(SO4)3(OH)24 · 36H2OTrig. 3 : R3
8.DF.35ParnauiteCu9(AsO4)2(SO4)(OH)10 · 7H2OOrth. mm2 : Pmn21
8.DF.40GladiusiteFe2(Fe,Mg)4(PO4)(OH)11(H2O)Mon.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

19.7.1BerliniteAlPO4Trig. 3 2 : P31 2 1
19.7.2AugeliteAl2(PO4)(OH)3Mon. 2/m : B2/m
19.7.3TrolleiteAl4(PO4)3(OH)3Mon. 2/m : B2/b
19.7.4SenegaliteAl2(PO4)(OH)(OH)2 · H2OOrth. mm2
19.7.5VarisciteAlPO4 · 2H2OOrth. mmm (2/m 2/m 2/m) : Pbca
19.7.6MetavarisciteAlPO4 · 2H2OMon. 2/m : P21/b
19.7.7BolivariteAl2(PO4)(OH)3 · 4-5H2OAmor.
19.7.8WavelliteAl3(PO4)2(OH,F)3 · 5H2OOrth. mmm (2/m 2/m 2/m)
19.7.10VantasseliteAl4(PO4)3(OH)3 · 9H2OOrth.
19.7.11KingiteAl3(PO4)2F2(OH) · 7H2OTric.
19.7.12VashegyiteAl11(PO4)9(OH)6 · 38H2OOrth. mmm (2/m 2/m 2/m)

Other InformationHide

Notes:
Readily soluble in acids.
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 EvansiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Forbes (1864) Philosophical Magazine and Journal of Science: 28: 341.
Smith (1893) Proceedings of the Royal Society of New South Wales: 27: 382.
Kovár (1896) Chemický vyzkum pti Moravských Mineralû. Česka Akademie Císaře Frantiska Josefa &c. Rozpravy Třída II. Roč. v. čis. 15 8th.
Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig (1899): 31: 524 (Kovár cited therein)
Schaller (1907) American Journal of Science: 24: 155.
Iglesias (1927) Bol. Soc. espan. hist. nat.: 27: 319.
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.: 923-924.

Internet Links for EvansiteHide

Localities for EvansiteHide

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.
Australia
 
  • South Australia
    • Mt Lofty Ranges
      • North Mt Lofty Ranges
        • Kapunda
Peter Keller Collection
  • Tasmania
    • West Coast municipality
      • Zeehan district
        • Zeehan mineral field
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: 923.
Austria
 
  • Salzburg
    • St. Johann im Pongau District
      • Schwarzach im Pongau
        • Lend
R. Exel: Die Mineralien und Erzlagerstätten Österreichs, 1993
Belgium
 
  • Wallonia
    • Hainaut
      • Bernissart
        • Blaton
Van Tassel, R. (1959) Allophane-évansite de Blaton. Bulletin de la Société belge de Géologie, 68, 47-49.; Israël, W. (1986) De fosfaatmineralen van Blaton (Henegouwen, België). Gea, 2(19), 51-56.; Peacor, D.R., Dunn, P.J., Simmons, W.B., Ramik, R.A. (1987) Ferristrunzite, a new member of the strunzite group from Blaton, Belgium. Neues Jahrbuch für Mineralogie, Monatshefte 1987, 453-457.; Hatert, F., Deliens, M., Fransolet, A.-M., Van Der Meersche, E. (2002) Les minéraux de Belgique. 2ème édition, Muséum des Sciences Naturelles, Bruxelles, Belgium, 304 pages (in French).; http://users.skynet.be/rik.dillen/festr.htm https://www.strahlen.org/vp/be/blaton/blaton.php http://perso.infonie.be/jose.dehove/photos/Blaton.htm
    • Liège
Hatert, F., Deliens, M., Fransolet, A.-M., Van Der Meersche, E. (2002) Les minéraux de Belgique. 2ème édition, Muséum des Sciences Naturelles, Bruxelles, Belgium, 304 pages (in French).
Collection Arliguie M
Van Tassel, R. (1959) Autunite, apatite, delvauxite, évansite et fluellite de la région de Visé. Bulletin de la Société belge de Géologie, 68, 226.; Hatert, F., Deliens, M., Fransolet, A.-M., Van Der Meersche, E. (2002) Les minéraux de Belgique. 2ème édition, Muséum des Sciences Naturelles, Bruxelles, Belgium, 304 pages (in French).
Bolivia
 
  • Potosí
    • Rafael Bustillo
      • Llallagua
[MinRec 32:474]; Hyrsl, J. & A. Petrov (2006): Famous Mineral Localities: Llallagua, Bolivia. Mineralogical Record. 37: 117-162
China
 
  • Guizhou
    • Zunyi
      • Bozhou District
        • Zunyi Ni-Mo-PGE-Au ore field
Nansheng Chen (1996), In: Tu Guangzhi (ed.): "Geochemistry of Strata-Bound Deposits in China", Science Press (Beijing), 528-548
  • Hunan
Hunan 230 Laboratory, Hunan 305 Geological Team, Wuhan Geological Institution X-ray Laboratory (1976): Acta Geologica Sinica 50(2), 203-204.
    • Zhangjiajie
      • Cili Co.
Nansheng Chen (1996), In: Tu Guangzhi (ed.): "Geochemistry of Strata-Bound Deposits in China", Science Press (Beijing), 528-548
  • Yunnan
    • Qujing
      • Zhanyi District
Nansheng Chen (1996), In: Tu Guangzhi (ed.): "Geochemistry of Strata-Bound Deposits in China", Science Press (Beijing), 528-548
Rock Currier specimens, X-ray amorphous, rich in Al and P.
Czech Republic
 
  • Pardubice Region
    • Pardubice District
Prachař, I.: Současný stav výskytu nerostů ve Chvaleticích. Acta musei Reginaehradecensis, série A: vědy přírodní, 1981, roč. XVI., s. 99-102.
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: 923.
  • South Bohemian Region
    • Český Krumlov District
Pauliš, P.: Výskyt evansitu na grafitovém ložisku v Českém Krumlově. Časopis pro mineralogii a geologii, 1980, roč. 25, č. 3, s. 321.
  • South Moravian Region
    • Blansko District
      • Letovice
        • Olešnice
Pelíšek J.: Některé nové minerály v krystalických vápencích moravika. Časopis pro mineralogii a geologii, 1979, 24, 4, 435-346.
  • Vysočina Region
    • Žďár nad Sázavou District
      • Štěpánov nad Svratkou
Velebil, D., Kráčmar, L.: Ložisko Borovec u Štěpánova (štěpánovský revír). Minerál, 2002, roč. 10, č. 3, s. 163-181.
Kovár (1896) Chemický vyzkum pti Moravských Mineralû. Česka Akademie Císaře Frantiska Josefa &c. Rozpravy Třída II. Roč. v. čis. 15 8th.; 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: 923.
DR Congo
 
  • South Kivu
    • Shabunda Territory
Mills, S. J., Birch, W. D., Kampf, A. R. & van Wambeke, L. (2010) Kobokoboite, Al6(PO4)4(OH)6•11H2O, a new mineral from the Kobokobo pegmatite, Democratic Republic of the Congo. European Journal of Mineralogy, 22(2); Van Wambeke, L. (1971): The uranium-bearing mineral bolivarite: new data and a second occurrence. Mineralogical Magazine 38, 418-423.
France
 
  • Bourgogne-Franche-Comté
    • Saône-et-Loire
      • Charolles
        • Bourbon-Lancy
          • Chalmoux
Delfour, J. (2007) Le gisement de pyrite de Chizeuil (Saône-et-Loire). Le Règne Minéral Hors série XIII: 31-35. http://jacques.delfour.pagesperso-orange.fr/chizeuil.htm.
  • Grand Est
    • Marne
      • Epernay
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: 923.
  • Pays de la Loire
    • Loire-Atlantique
      • Châteaubriant-Ancenis
        • Saint-Aubin-des-Châteaux
Moëlo, Y., Gloaguen, E., Lulzac, Y. (2006): III. Les minéraux de Saint-Aubin. Le Cahier des Micromonteurs, 1/2006, 13-25
Germany
 
  • North Rhine-Westphalia
    • Düsseldorf
      • Wuppertal
        • Aprath castle
Emser Hefte 1988(4), 35-40
Israel
 
  • Haifa District
    • Mount Carmel
Weiner, S., Goldberg, P., & Bar-Yosef, O. (1993). Bone preservation in Kebara Cave, Israel using on-site Fourier transform infrared spectrometry. Journal of Archaeological Science, 20(6), 613-627.
Japan
 
  • Miyazaki Prefecture
    • Nishiusuki District
      • Hinokage
Akira Kato (1973) Sakurai Koubutsu Hyohon, 49.
Kazakhstan
 
  • Jambyl Region
    • Talas Alatau Range (Talas Ala-Too Range)
Ankinovich, E.A, Bekenova, G.K., Shabanova, T.A., Zazubina, I.S., and Sandomirskaya, S.M. (1997): Mitryaevaite, Al10((PO4)8.7(SO3OH)1.3)10AlF3.3OH2O, a new mineral species from a Cambrian carbonaceous chert formation, Karatau Range and Zhabagly Mountains, Southern Kazakhstan. Canadian Mineralogist 35(6), 1415-1419.
Madagascar
 
  • Atsinanana
    • Vatomandry
Lacroix, A. (1922): Mineralogie de Madagascar, Tome I. Géologie-Minéralogie descriptive. A.Challamel (Éditeur), Paris. p 359. ; 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: 923.
  • Vakinankaratra
Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871
Portugal
 
  • Porto
Rui Nunes' collection
  • Viana do Castelo
    • Caminha
    • Ponte de Lima
      • Cabração
Pedro Alves collection
Romania
 
  • Alba
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: 923.
    • Roşia Montanã Commune
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: 923.
  • Suceava
    • Suceava district
      • Iacobeni (Jakobeny; Jacobeny; Jakabfalva)
http://minerals-of-the-carpathians.eu
Russia
 
  • Stavropol Krai
    • Pyatigorsk
      • Lermontovskoe U Deposit
        • Beshtau Mountain
          • mine №1
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
Slovakia
 
  • Banská Bystrica Region
    • Banská Bystrica District
      • Ľubietová
Pauliš,P.,Ďuďa,R.,2002: Nejzajímavejší mineralogická naletište Slovenska. Kuttna,K.Hora, 136p
Koděra, M., a kol.: Topografická mineralogie Slovenska. Sv. 3 Sed-Ž, Bratislava, Veda 1990, s. 1247-1256.
    • Revúca District
      • Sirk
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: 923; Canadian Mineralogist (1995), 33, 59-65
    • Rimavská Sobota District
Novák, F. et al. (2003): Koninckit, evansit, vashegyit a volborthit z Kocihy u Rimavské Soboty. Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, roč. 11, s. 159-166.
  • Košice Region
    • Rožňava District
      • Betliar
Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590
Koděra et all.,1990: Topografická mineralógia Slovenska, I-III, 1590p
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: 923.; Duda, Rejl, Slivka: "Mineralien", 1991
Koděra et all.,1990: Topografická mineralógia Slovenska, I-III, 1590p
      • Ochtiná
Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590
South Africa
Cairncross, B. and Dixon, R., (1995), Minerals of South Africa.
  • Gauteng
Martini, I. (1978). Mineralogy of the Transvaal caves. South African Journal of Geology, 81(1), 47-54.
    • West Rand District (West Rand)
      • Far West Rand (West Wits Line)
        • Western Sector
          • Carletonville
Martini, I. (1978). Mineralogy of the Transvaal caves. South African Journal of Geology, 81(1), 47-54.
      • Krugersdorp
Martini, I. (1978). Mineralogy of the Transvaal caves. South African Journal of Geology, 81(1), 47-54.
  • North West
    • Dr Kenneth Kaunda District
      • Ventersdorp
Martini, I. (1978). Mineralogy of the Transvaal caves. South African Journal of Geology, 81(1), 47-54.
Spain
 
  • Catalonia
    • Barcelona
      • Baix Llobregat
        • Sant Feliu de Llobregat
          • Collserola mountain range
            • Santa Creu d'Olorda
Bareche, E. (2005): "Els minerals de Catalunya: segle XX". Grup Mineralògic Català & Institució Catalana d'Historia Natural. Barcelona.
      • Barcelonès
        • Barcelona city
          • Collserola mountain range
No reference listed
Mata i Perelló, J.M. (1990): Els minerals de Catalunya. Institut d´Estudis Catalans
      • Vallès Occidental
        • Montcada i Reixac
Mineralogistes de Catalunya (1997), VII (1): 34-55
  • Galicia
    • Pontevedra
      • Vigo
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: 923.
  • Navarre
    • Esteríbar
      • Eugui
Calvo, M. y Viñals, J. (2003). Los minerales de las explotaciones de magnesita de Eugui (Navarra). Revista de Minerales, 2 (4), 6-21.
UK
 
  • England
    • Cheshire
      • Macclesfield
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: 923.; Woodward A S (1884) Note on the occurrence of evansite in East Cheshire. Mineralogical Magazine 5, 333-334
    • Devon
      • North Devon
        • West Buckland
Alysson Rowan collection
USA
 
  • Alabama
    • Shelby Co.
      • Coosa coal field
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: 923; Mineralogy of Alabama, Geological Survey of Alabama Bull.120.
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: 923; Mineralogy of Alabama, Geological Survey of Alabama Bull.120..
  • Arkansas
    • Garland Co.
      • Wilson Springs (Potash Sulfur Springs)
        • Union Carbide Mine
R&M 70:3 pp 154-170
  • Idaho
    • Custer Co.
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: 923; Rocks & Minerals (1995): 70(4): 242-263.
  • Maine
    • Oxford County
      • Paris
King, V. T. and Foord, E. E., 1994, Mineralogy of Maine, Descriptive Mineralogy, volume 1, Maine Geological Survey, Augusta, Maine, USA, pp. 418 + 88 plates.
  • Nevada
    • Humboldt Co.
      • Osgood Mountains
        • Potosi Mining District
Min Rec 10:4 pp219-221
  • Wisconsin
    • Dodge Co.
      • Iron Ridge Mining District (Neda Iron Mining District)
Hawley, J. & A. Bevan (1934) Mineralogy and genesis of the Mayville iron ore of Wisconsin: american Mineralogist: 19 (11): 493- 514.
Venezuela
 
Franco Urbani (2009) Venezuelan Cave Minerals: Second Review. Mineralogy 1 2009 ICS Proceedings. In 15th International Congress of Speleology. p 345
 
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