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Evansite

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Richelle, Visé, Liège Province, Belgium
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Formula:
Al
 
3
(PO
 
4
)(OH)
 
6
 · 6H
 
2
O
System:AmorphousColour:Colourless, milk-white, ...
Hardness:3½ - 4
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.

Classification of Evansite

IMA status:Questionable/Doubtful
Strunz 8th edition ID:7/D.23-30
Nickel-Strunz 10th (pending) edition ID: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
Dana 8th edition ID:42.1.2.1

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

19 : Phosphates
7 : Phosphates of Al alone
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Type Occurrence of Evansite

Type Locality:Železník (Vashegy), Sirk, Revúca Co., Banská Bystrica Region, Slovakia
Year of Discovery:1864

Physical Properties of Evansite

Lustre:Vitreous, Resinous, Waxy
Diaphaneity (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 (Mohs):3½ - 4
Tenacity:Very brittle
Fracture:Conchoidal
Density (measured):1.8 - 2.2 g/cm3
Comment:Density usually about 1.9.

Crystallography of Evansite

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

Optical Data of Evansite

Type:Isotropic

Chemical Properties of Evansite

Formula:
Al
 
3
(PO
 
4
)(OH)
 
6
 · 6H
 
2
O
Essential elements:Al, H, O, P
All elements listed in formula:Al, H, O, P
Common Impurities:Cu,Pb

Relationship of Evansite to other Species

Common Associates:
LimoniteAllophane
Related Minerals - Nickel-Strunz Grouping):

- +
8.DF.05Hotsonite
Al
 
11
(SO
 
4
)
 
3
(PO
 
4
)
 
2
(OH)
 
21
 · 16H
 
2
O
8.DF.10Bolivarite
Al
 
2
(PO
 
4
)(OH)
 
3
 · 4-5H
 
2
O
8.DF.10Liskeardite
(Al,Fe
3+
 
)
 
3
(AsO
 
4
)(OH)
 
6
 · 5H
 
2
O
8.DF.10Rosièresite
(Pb, Cu, Al, P, O, H)
8.DF.15Rusakovite
(Fe
3+
 
,Al)
 
5
(VO
 
4
,PO
 
4
)
 
2
(OH)
 
9
 · 3H
 
2
O
8.DF.20Liroconite
Cu
 
2
Al(AsO
 
4
)(OH)
 
4
 · 4H
 
2
O
8.DF.25Sieleckiite
Cu
 
3
Al
 
4
(PO
 
4
)
 
2
(OH)
 
12
 · 2H
 
2
O
8.DF.30Chalcophyllite
Cu
 
18
Al
 
2
(SO
 
4
)
 
3
(AsO
 
4
)
 
3
(OH)
 
27
 · 33H
 
2
O
8.DF.35Parnauite
Cu
 
9
(AsO
 
4
)
 
2
(SO
 
4
)(OH)
 
10
 · 7H
 
2
O
8.DF.40Gladiusite
Fe
 
2
(Fe,Mg)
 
4
(PO
 
4
)(OH)
 
11
(H
 
2
O)
Related Minerals - Hey's Index Grouping:

- +
19.7.1Berlinite
AlPO
 
4
19.7.2Augelite
Al
 
2
(PO
 
4
)(OH)
 
3
19.7.3Trolleite
Al
 
4
(PO
 
4
)
 
3
(OH)
 
3
19.7.4Senegalite
Al
 
2
(PO
 
4
)(OH)
 
3
 · H
 
2
O
19.7.5Variscite
AlPO
 
4
 · 2H
 
2
O
19.7.6Metavariscite
AlPO
 
4
 · 2H
 
2
O
19.7.7Bolivarite
Al
 
2
(PO
 
4
)(OH)
 
3
 · 4-5H
 
2
O
19.7.8Wavellite
Al
 
3
(PO
 
4
)
 
2
(OH,F)
 
3
 · 5H
 
2
O
19.7.10Vantasselite
Al
 
4
(PO
 
4
)
 
3
(OH)
 
3
 · 9H
 
2
O
19.7.11Kingite
Al
 
3
(PO
 
4
)
 
2
(OH)
 
3
 · 9H
 
2
O
19.7.12Vashegyite
Al
 
11
(PO
 
4
)
 
9
(OH)
 
6
 · 38H
 
2
O

Other Names for Evansite

Other Languages:
German:Evansit
Spanish:Evansita

Other Information

Other Information:Readily soluble in acids.
Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Evansite

Reference List:

- +
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.

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    • Localities for Evansite

    The 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.
    Hide Locality List
    (TL) indicates type locality. ? 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.
    Australia
     
    • South Australia
      • Mt Lofty Ranges
        • North Mt Lofty Ranges
          • Kapunda
    		Peter Keller Collection
    • Tasmania
      • Zeehan district
        • Zeehan
    		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
      • Schwarzach
        • Lend
    		R. Exel: Die Mineralien und Erzlagerstätten Österreichs, 1993
    Belgium
     
    • Hainaut Province (Henegouwen; Hennegau)
      • Mons
        • Blaton
    		Peacor, D.R., Dunn, P.J.,Simmons,W.B. and Ramik, R.A. (1987): Ferristrunzite, a new member of the strunzite group, from Blaton, Belgium. Neues Jahrbuch für Mineralogie, Monatshefte 1987, 453-457
    • Liège Province
      • Visé
    		Collection Arliguie M
    No reference listed
    Bolivia
     
    • Potosí Department
      • Rafael Bustillo Province (Bustillos Province)
        • Llallagua
    		[MinRec 32:474]; Hyrsl, J. & A. Petrov (2006): Famous Mineral Localities: Llallagua, Bolivia. Mineralogical Record. 37: 117-162
    China
     
    • Guizhou Province
      • Zunyi Prefecture
        • Zunyi Co.
          • 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 Province
    		Hunan 230 Laboratory, Hunan 305 Geological Team, Wuhan Geological Institution X-ray Laboratory (1976): Acta Geologica Sinica 50(2), 203-204.
      • Zhangjiajie Prefecture
        • Cili Co.
    		Nansheng Chen (1996), In: Tu Guangzhi (ed.): "Geochemistry of Strata-Bound Deposits in China", Science Press (Beijing), 528-548
    • Yunnan Province
      • Qujing Prefecture
        • Zhanyi Co.
    		Nansheng Chen (1996), In: Tu Guangzhi (ed.): "Geochemistry of Strata-Bound Deposits in China", Science Press (Beijing), 528-548
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Pardubice Region
    		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 Bohemia Region
        • Český Krumlov
    		Pauliš, P.: Výskyt evansitu na grafitovém ložisku v Českém Krumlově. Časopis pro mineralogii a geologii, 1980, roč. 25, č. 3, s. 321.
    • Moravia (Mähren; Maehren)
      • South Moravia Region
        • Letovice (Lettowitz)
          • Olešnice
    		Pelíšek J.: Některé nové minerály v krystalických vápencích moravika. Časopis pro mineralogii a geologii, 1979, 24, 4, 435-346.
      • Vysočina Region
        • Bystřice nad Pernštejnem
    		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.
        • Štěpánov nad Svratkou
    		Velebil, D., Kráčmar, L.: Ložisko Borovec u Štěpánova (štěpánovský revír). Minerál, 2002, roč. 10, č. 3, s. 163-181.
    Democratic Republic of Congo (Zaïre)
     
    • Sud-Kivu
      • Lusungu River District
    		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)
    France
     
    • Champagne-Ardenne
      • 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 Loire
      • Loire-Atlantique
        • 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
      • Wuppertal
        • Aprath castle
    		Emser Hefte 1988(4), 35-40
    Japan
     
    • Kyushu Region
      • Miyazaki prefecture
        • Hinokage-cho
    		Akira Kato (1973) Sakurai Koubutsu Hyohon, 49.
    Kazakhstan
     
    • Zhambyl Province (Jambyl Oblysy; Dzhambulskaya Oblast')
      • Talas Alatau Range (Talas Ala-Too Range)
    Madagascar
     
    • Antananarivo Province
      • Vakinankaratra Region
    		Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871
    • Toamasina Province (Tamatave)
      • Eastern Region (Atsinanana Region)
        • Vatomandry District
    		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.
    Portugal
     
    • Guarda District
      • Gouveia
        • Folgosinho
    		Luis Martins collection
    • Viana do Castelo District
      • Caminha
      • Ponte de Lima
        • Cabração
    		Pedro Alves collection
    Romania
     
    • Alba 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.
    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 Co.
      • Suceava district
        • Iacobeni (Jakobeny; Jacobeny; Jakabfalva)
    		http://minerals-of-the-carpathians.eu
    Russia
     
    • Northern Caucasus Region
      • Stavropol'skiy Kray
        • Pyatigorsk
          • Lermontovskoe U Deposit
            • Beshtau Mt.
              • 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 Co.
        • 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 Co.
        • 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 Co.
    		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 Co.
        • Betliar
    		Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590
        • Dobšiná (Dobschau) Mining District
    		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.
    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
    		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.
    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 Co.
        • 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.
        • Potosi District
    		Min Rec 10:4 pp219-221
    • Wisconsin
      • Dodge Co.
        • Iron Ridge District (Neda Iron District)
    		Rocks & Min. Vol. 73 (1998)
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