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Retgersite

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Formula:
NiSO
 
4
· 6H
 
2
O
System:TetragonalColour:Emerald green with blue ...
Lustre:VitreousHardness:
Name:Named after Jan Willem Retgers, Dutch crystallographer.
Dimorph of:Nickelhexahydrite



May occur as a dehydration product of morenosite.

Classification of Retgersite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:6/C.05-70
Nickel-Strunz 10th (pending) edition ID:7.CB.30

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
C : Sulfates (selenates, etc.) without additional anions, with H2O
B : With only medium-sized cations
Dana 8th edition ID:29.6.9.1

29 : HYDRATED ACID AND NORMAL SULFATES
6 : AXO4·xH2O
Hey's CIM Ref.:25.12.5

25 : Sulphates
12 : Sulphates of Co and Ni
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Type Occurrence of Retgersite

Type Locality:Ragra Mine (Minasragra), Huayllay District, Pasco Province, Pasco Department, Peru
Year of Discovery:1948

Physical Properties of Retgersite

Lustre:Vitreous
Colour:Emerald green with blue tinge; pale green in transmitted light.
Streak:Greenish-white
Hardness (Mohs):
Tenacity:Brittle
Cleavage:Perfect
On {001}, perfect; traces on {110} in crushed grains under magnification.
Fracture:Irregular/Uneven, Sub-Conchoidal
Density (measured):2.04 g/cm3
Density (calculated):2.07 g/cm3
Comment:2.07 (artificial material).

Crystallography of Retgersite

Crystal System:Tetragonal
Class (H-M):4 2 2 - Trapezohedral
Space Group:P41 21 2
Cell Parameters:a = 6.78Å, c = 18.28Å
Ratio:a:c = 1 : 2.696
Unit Cell Volume:V 840.30 ų (Calculated from Unit Cell)
Morphology:Artificial crystals thick tabular {001} grading to short prismatic [001]. Fibrous crusts or veinlets, fibers elongated [001]; twisted spire- or horn-like tufts. Single crystals rare.

Optical Data of Retgersite

Type:Uniaxial (-)
RI values: nω = 1.511 nε = 1.487
Maximum Birefringence:δ = 0.024

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate

Chemical Properties of Retgersite

Formula:
NiSO
 
4
· 6H
 
2
O
Simplified for copy/paste:NiSO4·6H2O
Essential elements:H, Ni, O, S
All elements listed in formula:H, Ni, O, S
Analytical Data:Soluble in water.

Relationship of Retgersite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
7.CB.05Dwornikite
(Ni,Fe)SO
 
4
· H
 
2
O
7.CB.05Gunningite
ZnSO
 
4
· H
 
2
O
7.CB.05Kieserite
MgSO
 
4
· H
 
2
O
7.CB.05Poitevinite
(Cu,Fe,Zn)SO
 
4
· H
 
2
O
7.CB.05Szmikite
MnSO
 
4
· H
 
2
O
7.CB.05Szomolnokite
FeSO
 
4
· H
 
2
O
7.CB.05Cobaltkieserite
CoSO
 
4
· H
 
2
O
7.CB.07Sanderite
MgSO
 
4
· 2H
 
2
O
7.CB.10Bonattite
CuSO
 
4
· 3H
 
2
O
7.CB.15Aplowite
(Co,Mn,Ni)SO
 
4
· 4H
 
2
O
7.CB.15Boyleite
(Zn,Mg)SO
 
4
· 4H
 
2
O
7.CB.15Ilesite
(Mn,Zn,Fe)SO
 
4
· 4H
 
2
O
7.CB.15Rozenite
FeSO
 
4
· 4H
 
2
O
7.CB.15Starkeyite
MgSO
 
4
· 4H
 
2
O
7.CB.15Drobecite
CdSO
 
4
· 4H
 
2
O
7.CB.15Cranswickite
MgSO
 
4
· 4H
 
2
O
7.CB.20Chalcanthite
CuSO
 
4
· 5H
 
2
O
7.CB.20Jôkokuite
MnSO
 
4
· 5H
 
2
O
7.CB.20Pentahydrite
MgSO
 
4
· 5H
 
2
O
7.CB.20Siderotil
FeSO
 
4
· 5H
 
2
O
7.CB.25Bianchite
(Zn,Fe)SO
 
4
· 6H
 
2
O
7.CB.25Chvaleticeite
(Mn,Mg)SO
 
4
· 6H
 
2
O
7.CB.25Ferrohexahydrite
FeSO
 
4
· 6H
 
2
O
7.CB.25Hexahydrite
MgSO
 
4
· 6H
 
2
O
7.CB.25Moorhouseite
(Co,Ni,Mn)SO
 
4
· 6H
 
2
O
7.CB.25Nickelhexahydrite
(Ni,Mg,Fe)SO
 
4
· 6H
 
2
O
7.CB.35Bieberite
CoSO
 
4
· 7H
 
2
O
7.CB.35Boothite
CuSO
 
4
· 7H
 
2
O
7.CB.35Mallardite
MnSO
 
4
· 7H
 
2
O
7.CB.35Melanterite
FeSO
 
4
· 7H
 
2
O
7.CB.35Zincmelanterite
(Zn,Cu,Fe)SO
 
4
· 7H
 
2
O
7.CB.35Alpersite
(Mg,Cu)[SO
 
4
] · 7H
 
2
O
7.CB.40Epsomite
MgSO
 
4
· 7H
 
2
O
7.CB.40Goslarite
ZnSO
 
4
· 7H
 
2
O
7.CB.40Morenosite
NiSO
 
4
· 7H
 
2
O
7.CB.45Alunogen
Al
 
2
(SO
 
4
)
 
3
· 17H
 
2
O
7.CB.45Meta-alunogen
Al
 
2
(SO
 
4
)
 
3
· 12H
 
2
O
7.CB.50Aluminocoquimbite
FeAl(SO
 
4
)
 
3
· 9H
 
2
O
7.CB.55Coquimbite
Fe
 
2-x
Al
 
x
(SO
 
4
)
 
3
· 9H
 
2
O, x ~0.5
7.CB.55Paracoquimbite
Fe
 
2
(SO
 
4
)
 
3
· 9H
 
2
O
7.CB.55Rhomboclase
(H
 
5
O
 
2
)Fe
3+
 
(SO
 
4
)
 
2
· 2H
 
2
O
7.CB.60Kornelite
Fe
 
2
(SO
 
4
)
 
3
· 7H
 
2
O
7.CB.65Quenstedtite
Fe
 
2
(SO
 
4
)
 
3
· 10H
 
2
O
7.CB.70Lausenite
Fe
 
2
(SO
 
4
)
 
3
·6H
 
2
O
7.CB.75Lishizhenite
ZnFe
 
2
(SO
 
4
)
 
4
· 14H
 
2
O
7.CB.75Römerite
Fe
2+
 
Fe
3+
2
(SO
 
4
)
 
4
· 14H
 
2
O
7.CB.80Ransomite
CuFe
 
2
(SO
 
4
)
 
4
· 6H
 
2
O
7.CB.85Apjohnite
Mn
2+
 
Al
 
2
(SO
 
4
)
 
4
· 22H
 
2
O
7.CB.85Bílinite
Fe
2+
 
Fe
3+
2
(SO
 
4
)
 
4
· 22H
 
2
O
7.CB.85Dietrichite
(Zn,Fe
2+
 
,Mn
2+
 
)Al
 
2
(SO
 
4
)
 
4
· 22H
 
2
O
7.CB.85Halotrichite
FeAl
 
2
(SO
 
4
)
 
4
· 22H
 
2
O
7.CB.85Pickeringite
MgAl
 
2
(SO
 
4
)
 
4
· 22H
 
2
O
7.CB.85Redingtonite
(Fe
2+
 
,Mg,Ni)(Cr,Al)
 
2
(SO
 
4
)
 
4
·22H
 
2
O
7.CB.85Wupatkiite
(Co,Mg,Ni)Al
 
2
(SO
 
4
)
 
4
·22H
 
2
O
7.CB.90Meridianiite
MgSO
 
4
· 11H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
25.12.1Bieberite
CoSO
 
4
· 7H
 
2
O
25.12.2Cobaltzippeite
Co(UO
 
2
)
 
2
(SO
 
4
)O
 
2
· 3.5H
 
2
O
25.12.3Aplowite
(Co,Mn,Ni)SO
 
4
· 4H
 
2
O
25.12.4Moorhouseite
(Co,Ni,Mn)SO
 
4
· 6H
 
2
O
25.12.6Morenosite
NiSO
 
4
· 7H
 
2
O
25.12.7Nickelblödite
Na
 
2
(Ni,Mg)(SO
 
4
)
 
2
· 4H
 
2
O
25.12.8Nickelboussingaultite
(NH
 
4
)
 
2
Ni(SO
 
4
)
 
2
· 6H
 
2
O
25.12.9Nickelzippeite
Ni(UO
 
2
)
 
2
(SO
 
4
)O
 
2
· 3.5H
 
2
O (?)
25.12.10Dwornikite
(Ni,Fe)SO
 
4
· H
 
2
O
25.12.11Honessite
(Ni
 
1-x
Fe
3+
x
)(OH)
 
2
[SO
 
4
]
 
x/2
· nH
 
2
O
25.12.12Hydrohonessite
(Ni
 
1-x
Fe
3+
x
)(OH)
 
2
[SO
 
4
]
 
x/2
· nH
 
2
O
25.12.13Nickelhexahydrite
(Ni,Mg,Fe)SO
 
4
· 6H
 
2
O

Other Names for Retgersite

Other Languages:
German:Retgersit
Russian:Ретгерсит
Simplified Chinese:镍矾
Spanish:Retgersita

Other Information

Other Information:Bitter Taste
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 Retgersite

Reference List:

- +
Brooke (1823) Annals of Philosophy, London: 22: 437 (on artificial crystals).

Mitscherlich (1828) Annalen der Physik, Halle, Leipzig: 12: 146.

Rammelsberg (1855): 92.

Scacchi (1863) Reale accademia delle scienze fisische e matematiche, Naples, Att.: 1(11) (artificial material).

Topsøe (1872) Arch. sc. phys. nat. Genève: [2]: 45: 223.

Topsøe and Christiansen (1874) Annales de chimie et de physique, Paris: 1: [5]: 63.

Blasius (1885) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 10: 227.

Baumhauer, H.A. (1894) Die Resultate der Aetzmethode in der krystallographischen Forschung, 131pp., Leipzig: 57.

Gossner (1907) Berichte deutsche chemische Gesellschaft: 40: 2374.

Beevers and Lipson (1932) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 83: 123.

Borghijs (1937) Natuurwet. Tijdschr.: 19: 115 (artificial material).

Ferguson (1939) University of Nevada Bull. 33, no. 5.

Rudnick, Slack, and O'Connor (1940) Physical Review, a Journal of Experimental and Theoretical Physics: 58: 1003.

Mathieu (1946) Comptes rendu de l’Académie des sciences de Paris: 222: 223.

Frondel, C. and Palache, C. (1949)American Mineralogist: 34: 188-194.

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.: 497-498.

Zeitschrift für Kristallographie: 83: 123-135.

Acta Crystallographica (1988): C44: 1869.

Internet Links for Retgersite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Retgersite details from Handbook of Mineralogy (PDF)
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  • Lapis Mineral Magazin
  • Localities for Retgersite

    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.
    (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
     
    • Tasmania
      • Heazlewood district
    Anderson, P., Bottrill, R. & Davidson, P. (2002): Famous mineral localities: The Lord Brassey mine, Tasmania. Mineralogical Record 33, 321-332
    • Western Australia
      • Coolgardie Shire
        • Widgiemooltha
    No reference listed
    Austria
     
    • Salzburg
      • St Johann im Pongau
    A. Strasser: Die Minerale Salzburgs, 1989
    • Styria
      • Fischbacher Alpen
        • St. Jakob-Breitenau
          • Hochlantsch
    Landesmuseum Joanneum (Graz, Styria) collection; Bojar, H.-P. et al. (1993)
    • Tyrol
      • North Tyrol
        • Inn valley
          • Brixlegg - Schwaz area
            • Brixlegg - Rattenberg
    Schnorrer, G. & Poeverlein, R. (2005): Schwaz-Brixlegger-Fundstellen: 3. Die Minerale vom Bergbau Maukenötz bei Brixlegg, Tirol. Der Aufschluss, 56, 223-234.
    Bosnia and Herzegovina
     
    • Federation of Bosnia and Herzegovina
      • Sarajevo Canton
        • Vareš
    Bermanec, V., Sijaric, G., Kniewald, G., and Mandarino, J.A. (2000): The Canadian Mineralogist 38, 1371-1376.
    Canada
     
    • Ontario
      • Kenora District
        • Ring of Fire
          • BMA527862 Area
    Reiner Mielke 2014
      • Sudbury District
        • Denison Township
    Reiner Mielke
    • Québec
      • Abitibi-Témiscamingue
        • Abitibi RCM
          • La Motte
    Sabina (2003)126
    Mineralogical Record (1976): 7(4): 174-178.
      • Chaudière-Appalaches
        • Montmagny RCM
          • St-Fabien-de-Panet
    Sabina (1992) GSC Misc. Report 46, 62
    • Saskatchewan
      • Athabasca Basin
    Collection of Barry Murphy, Micromount specimen catalogue number 00871
    Chile
     
    • Antofagasta Region
      • Antofagasta Province
        • Taltal
    Tom Loomis (Dakotamatrix) samples showed on his personal web site during 2007
    China
     
    • Gansu Province
      • Jiuquan Prefecture
        • Subei Co.
    Jianguo Yang, Lei Wang, Xiaohong Wang, Xie Xie, and Zhengguang Qie (2012): Geological Bulletin of China 31(2/3), 448-454
    • Qinghai Province
      • Haixi Autonomous Prefecture
        • Golmud Co. (Ge'ermu Co.)
          • Qimantage Mts
    Chunyan Dong, Xiaoguo Chi, Fengyue Sun, and Yuan Zhang (2005): Multipurpose Utilization of Mineral Resources 1(1), 29-33
    • Xinjiang Autonomous Region
      • Hami Prefecture (Kumul Prefecture; Qumul Prefecture)
        • Hami Co. (Kumul Co.; Qumul Co.)
          • Huangshan-Jing'erquan ore belt
    Yan Sun, Yuanfu Xiao, Wei Feng, Fahui Xiong, and Zhiqiang Zhao (2009): Geology in China 36(4), 871-877
      • Yili Hasake Autonomous Prefecture (Ili Kazakh Autonomous Prefecture)
        • Aletai Prefecture (Altay Prefecture)
          • Fuyun Co. (Koktokay Co.)
    Chunming Han, Wenjiao Xiao, Guochun Zhao, Wenjun Qu, and Andao Du (2007): Ore Geology Reviews 32, 452-468.
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • 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).
        • Krušné Hory Mts (Erzgebirge)
          • Jáchymov District (St Joachimsthal)
            • Jáchymov (St Joachimsthal)
    Lapis 2002(7/8)
        • Mariánské Lázně (Marienbad)
          • Slavkovský Les Mtn
    Sejkora, J. (1992): Retgersite from Smrkovec near Marianské Lazné. Cas.Mineral.Geol., 37, 353
    Finland
     
    • Northern Finland Region
      • Kajaani
    Hytönen, Kai 1999. Suomen Mineraalit. Retgersite sample in the Mineralogical Museum of the Geological Survey of Finland.
    Germany
     
    • Baden-Württemberg
      • Black Forest
        • St Blasien
          • Horbach
    K. Walenta: "Die Mineralien des Schwarzwaldes", Weise (Munich), 1992
    • Hesse
      • Richelsdorf District
        • Süss
          • Richelsdorf Smelter
    S. Weiß: "Mineralfundstellen, Deutschland West", Weise (Munich), 1992
    • Lower Saxony
      • Harz
        • Goslar
    Dietrichs, J. (2006): Die Mineralien der Nickelgrube "Großfürstin Alexandra" im Ostharz. Lapis 31 (6), 28-30; 70.
          • Rammelsberg
    No reference listed
        • Lautenthal
          • Wolfshagen
    Schnorrer-Köhler, G. (1991): Mineralogische Notizen V, Der Aufschluss, Vol. 42, 155-171
        • St Andreasberg District
          • St Andreasberg
    Mindat photo by David J. Eicher
    • North Rhine-Westphalia
      • Sauerland
        • Meschede
    Wittern: "Mineralfundorte in Deutschland", 2001
      • Siegerland
        • Eiserfeld
          • Kohlenbach Valley
    Henrich, M. (2009): Mineralien-Welt 20 (5), 14-27.
        • Müsen
    Der Aufschluss 2000(2), 71-123
    • Rhineland-Palatinate
      • Lahn valley
    Wittern: "Mineralfundorte in Deutschland", 2001
          • Frücht
    Der Aufschluss Vol.55, March/April 2004
    • Saxony-Anhalt
    Wittern: "Mineralfundorte in Deutschland", 2001
    • Saxony
      • Oberlausitz
        • Sohland an der Spree
    Frenzel, M. (2009): Nimit und weitere Neufunde aus der Nickelgrube Sohland a.d. Spree(Sachsen): Lapis 34(4): 44-45
    • Thuringia
      • Bad Lobenstein
    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: 498; O'Donoghue, 1978 - "Encyclopedia of Minerals & Gemstones", p283.
    Italy
     
    • Aosta Valley
      • Valtournanche Valley
        • Valtournanche
    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.
    Arliguie M collection
    • Piedmont
      • Cuneo Province
        • Varaita Valley
          • Piasco
    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.
      • 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.
    Japan
     
    • Honshu Island
      • Kinki region
        • Mie Prefecture
          • Toba City
    • Kyushu Region
      • Oita Prefecture
        • Bungo-ono City
          • Mie-cho-washidani
    Minakawa and Noto (1984) Chigaku Kenkyu, 35, 233-238.
    Morocco
     
    • Souss-Massa-Draâ Region
      • Ouarzazate Province
        • Tazenakht
          • Bou Azer District (Bou Azzer District)
            • Aït Ahmane
    Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
    Norway
     
    • Telemark
      • Kragerø
        • Valberg
    Selbekk, R. S., Husdal, T. A. & Berg, H-J. (2010): Nye mineraler for Norge i 2010. Stein. 37 (4): 24-26
    Peru
     
    • Pasco Department
      • Pasco Province
        • Huayllay District
    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: 498, 518; Progr.Abstr.,Min.Soc.Amer. 29th Ann. Meeting (1948) p. 6; Amer.Min.(1949) 34, 276.; O'Donoghue, 1978 - "Encyclopedia of Minerals & Gemstones", p283]
    Poland
     
    • Lower Silesia (Dolnośląskie)
      • Kaczawskie Mts
    Paulo A. 1970: On the formation of retgersite from Chełmiec. Mineralogia Polonica, vol. 1, 37-45
    Russia
     
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
          • Pechengsky District
    Excalibur Mineral Co. specimen, ID confirmed by both XRD and microprobe.
    Slovakia
     
    • Trenčín Region
      • Bánovce nad Bebravou Co.
        • Čierna Lehota
    Mikuš T. & Chovan M., 2007: Retgersit z Čiernej Lehoty (Strážovské vrchy). Mineralia Slovaca, 39, 3, 197-203.
    Spain
     
    • Catalonia
      • Tarragona
        • Priorat
          • Bellmunt del Priorat
    Joan Abella i Creus (2008): Minerals I Mines De La Conca De Bellmunt Del Priorat.
    Switzerland
     
    • Wallis (Valais)
      • Turtmann Valley
        • Pipjitälli
    Ansermet, S. (2012): Mines et minéraux du Valais - II. Anniviers et Tourtemagne. With contributions by N. Meisser, Ed. Porte-plumes (Ayer)
    UK
     
    • England
      • Warwickshire
        • Bedworth
    BMS Database
    • Scotland
      • Dumfries & Galloway (Kirkcudbrightshire)
        • Cassencarie
    Livingstone, A. (2002): The Minerals of Scotland - past and present, NMS Publications Ltd.
    USA
     
    • Missouri
      • Madison Co.
        • Fredericktown District
          • Mine La Motte
    • Nevada
      • Churchill Co.
        • Table Mountain District
          • Cottonwood Canyon
            • Bolivia
    NBMG Spec. Pub. 31 Minerals of Nevada
    NBMG Spec. Pub. 31 Minerals of Nevada
    • Pennsylvania
      • Lancaster Co.
        • Bart Township
          • Gap
    Mineralogical Record: 21: 103; Dana 6:1069; 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: 235, 241, &498.
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    Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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