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Mallardite

Formula:
MnSO
 
4
·7H
 
2
O
System:MonoclinicColour:Light rose pink; ...
Hardness:2
Name:
After Ernest Mallard (1833-1894), French crystallographer.


Melanterite Group.

Classification of Mallardite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:6/C.06-20
Nickel-Strunz 10th (pending) edition ID:7.CB.35

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:29.6.10.5

29 : HYDRATED ACID AND NORMAL SULFATES
6 : AXO4·xH2O
Hey's CIM Ref.:25.9.3

25 : Sulphates
9 : Sulphates of Mn
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Type Occurrence of Mallardite

Type Locality:Lucky Boy Mine, Butterfield Canyon, Tintic District, East Tintic Mts, Juab Co., Utah, USA
Place of Conservation of Type Material:Natural History Museum, Paris 96132
Year of Discovery:1879

Occurrences of Mallardite

Geological Setting:Oxidation of iron/manganese sulfides and carbonates in water saturated environments.

Physical Properties of Mallardite

Lustre:Vitreous
Diaphaneity (Transparency):Transparent, Translucent
Colour:Light rose pink; colourless in transmitted light.
Streak:White
Hardness (Mohs):2
Cleavage:Distinct/Good
On {001} good; possibly also on {110}.
Density (measured):1.846 g/cm3
Density (calculated):1.838 g/cm3
Comment:Density measured on artificial material.

Crystallography of Mallardite

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Space Group:P2/m {P1 1 2/m} {P2/m} {P1 2/m 1}
Cell Parameters:a = 14.15Å, b = 6.5Å, c = 11.06Å
β = 105.6°
Ratio:a:b:c = 2.177 : 1 : 1.702
Unit Cell Volume:V 979.77 ų (Calculated from Unit Cell)
Z:4
Morphology:Artificial crystals are tabular {001}. Fibrous masses and crusts.

Optical Data of Mallardite

Type:Biaxial (+)
RI values: nα = 1.462 nβ = 1.465 nγ = 1.474
Maximum Birefringence:δ = 0.012

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

Chemical Properties of Mallardite

Formula:
MnSO
 
4
·7H
 
2
O
Essential elements:H, Mn, O, S
All elements listed in formula:H, Mn, O, S
Analytical Data:Soluble in water.
Relationship of Mallardite to other Species
Member of Group:
Melanterite Group:
MSO
 
4
·7H
 
2
O
Related Minerals - Nickel-Strunz Grouping):

- + 
7.CB.05Dwornikite
(Ni,Fe)SO
 
4
·H
 
2
O
7.CB.05Gunningite
(Zn,Mn)SO
 
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.15IMA2002-034
CdSO
 
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.30Retgersite
NiSO
 
4
·6H
 
2
O
7.CB.35Bieberite
CoSO
 
4
·7H
 
2
O
7.CB.35Boothite
CuSO
 
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.55Coquimbite
Fe
 
2
(SO
 
4
)
 
3
·9H
 
2
O
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:

- + 
25.9.1Szmikite
MnSO
 
4
·H
 
2
O
25.9.2Jôkokuite
MnSO
 
4
·5H
 
2
O
25.9.4Manganolangbeinite
K
 
2
Mn
 
2
(SO
 
4
)
 
3
25.9.5Chvaleticeite
(Mn,Mg)SO
 
4
·6H
 
2
O
25.9.6Despujolsite
Ca
 
3
Mn
4+
 
[(OH)
 
6
|(SO
 
4
)
 
2
] · 3H
 
2
O
25.9.7Apjohnite
Mn
2+
 
Al
 
2
(SO
 
4
)
 
4
·22H
 
2
O
25.9.8Shigaite
Al
 
4
Mn
 
7
(SO
 
4
)
 
2
(OH)
 
22
·8H
 
2
O
25.9.9Ilesite
(Mn,Zn,Fe)SO
 
4
·4H
 
2
O
25.9.10Mooreite
(Mg,Zn,Mn
2+
 
)
 
15
[(OH)
 
13
|SO
 
4
]
 
2
 · 8H
 
2
O
25.9.11Torreyite
(Mg,Mn
2+
 
)
 
9
Zn
 
4
[(OH)
 
11
|SO
 
4
]
 
2
 · 8H
 
2
O
25.9.12Lawsonbauerite
(Mn
2+
 
,Mg)
 
9
Zn
 
4
[(OH)
 
11
|SO
 
4
]
 
2
 · 8H
 
2
O
25.9.13Dietrichite
(Zn,Fe
2+
 
,Mn
2+
 
)Al
 
2
(SO
 
4
)
 
4
·22H
 
2
O
Other Names for Mallardite
Other Languages:
German:Mallardit
Spanish:Mallardita
Other Information
Special Storage/
Display Requirements:		Quickly dehydrates at room temperature
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 Mallardite
Reference List:Carnot (1879) Bulletin de la Société française de Minéralogie: 2: 117.



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.: 507-508.



Neues Jahrbuch für Mineralogie, Monatshefte (1986): 123.


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    Localities for Mallardite
    






    


    

    
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    The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the  symbol to view information about a locality. 
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    (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
     
    

    • New South Wales
    

      • Yancowinna Co.
    
    		Birch BH Book
    Czech Republic
     
    

    • Bohemia (Böhmen; Boehmen)
    

      • Karlovy Vary Region
    

        • Krušné Hory Mts (Erzgebirge)
    

          • Ostrov
    
    		Lapis 2002(7/8), 63-65
    


      • Pardubice Region
    
    		Pašava, J., Breiter, K., Huka, M., Korecký, J.: Parageneze druhotných železnatých, hořečnatých a manganatých síranů z Chvaletic. Věstník Ústředního ústavu geologického, 1986, roč. 61, č. 2, s. 73-82. 
    France
     
    

    • Alsace
    

      • Haut-Rhin
    
    		Wittern, Journée: "Mineralien finden in den Vogesen", von Loga (Cologne), 1997
    Italy
     
    

    • Trentino-Alto Adige
    

      • Trento Province
    

        • Valsugana
    

          • Levico Terme
    
    		Exel, R. (1987): Guida mineralogica del Trentino e del Sudtirolo. Athesia, Bolzano, 204 pp. 
    Japan
     
    

    • Hokkaido Island
    

      • Oshima peninsula
    

        • Kaminokuni
    
    		Encyclopedia of Mins., 2nd Ed:519.; Nambu et al (1979) Ganseki-Koubutsu-Koshogaku Zasshi (JAMP), 74, 406-412.
    Spain
     
    

    • Andalusia
    

      • Huelva
    

        • Minas de Riotinto
    
    		[MinRec 27:284]
    USA
     
    

    • Colorado
    

      • Teller Co.
    

        • Cripple Creek District
    
    		Min Rec  36:2 pp143-185
    

    • New Mexico
    

      • Grant Co.
    
    		Minerals of New Mexico 3rd ed.
    



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: 508.
    


      • Sierra Co.
    
    		Northrop, Minerals of New Mexico, 3rd Rev. Ed., 1996
    

    • Utah
    

      • Juab Co.
    

        • East Tintic Mts
    

          • Tintic District
    

            • Butterfield Canyon
    
    		Bull.Soc.fr.Min.(1879) 2, 117; 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: 502, 508.
    


      • Salt Lake Co.
    

        • Oquirrh Mts
    

          • Bingham District (West Mountain District)
    
    		UGMS Bull 117 Minerals and Mineral Localities of Utah
    

    


    

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