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Ilesite

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Chvaletice, Pardubice Region, Bohemia (Böhmen; Boehmen), Czech Republic
© L Kruszewski 2006

Show Ilesite Photos (2)
Formula:
(Mn,Zn,Fe)SO
 
4
·4H
 
2
O
System:MonoclinicColour:Green
Hardness:2 - 3
Name:After Mr. Malvern Wells Iles (1852-1890), metallurgist - Denver, Colorado, USA.


Rozenite Group.

May dehydrate to szmikite.
May be a dehydration product of jôkokuite.

Classification of Ilesite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:6/C.03-30
Nickel-Strunz 10th (pending) edition ID:7.CB.15

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:29.6.6.3

29 : HYDRATED ACID AND NORMAL SULFATES
6 : AXO4·xH2O
Hey's CIM Ref.:25.9.9

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

Type Locality:McDonnell claim, Hall Valley, Montezuma District, Park Co., Colorado, USA
Year of Discovery:1881

Occurrences of Ilesite

Geological Setting:Secondary mineral in sulfide deposits.

Physical Properties of Ilesite

Diaphaneity (Transparency):Transparent
Colour:Green
Comment:Turns white on dehydration.
Hardness (Mohs):2 - 3
Density (measured):2.25 g/cm3
Density (calculated):2.26 g/cm3
Comment:Measured on artificial material.

Crystallography of Ilesite

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Cell Parameters:a = 5.94Å, b = 13.76Å, c = 8.01Å
β = 90.8°
Ratio:a:b:c = 0.432 : 1 : 0.582
Unit Cell Volume:V 654.63 ų (Calculated from Unit Cell)
Z:4
Morphology:Prismatic. Loosely adherent crystalline aggregates.
Comment:On synthetic material

Optical Data of Ilesite

Type:Biaxial (-)
RI values: nα = 1.511 nβ = 1.519 nγ = 1.521
Maximum Birefringence:δ = 0.010

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

Chemical Properties of Ilesite

Formula:
(Mn,Zn,Fe)SO
 
4
·4H
 
2
O
Essential elements:H, Mn, O, S
All elements listed in formula:Fe, H, Mn, O, S, Zn
Analytical Data:Soluble in water.
Relationship of Ilesite to other Species
Member of Group:
Rozenite Group:
MSO
 
4
·4H
 
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.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.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.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
25.9.3Mallardite
MnSO
 
4
·7H
 
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
25.9.10Mooreite
(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 Ilesite
Other Languages:
German:Ilesit
Russian:Илезит
Spanish:Ilesita
Other Information
Special Storage/
Display Requirements:		Becomes white on dehydration
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 Ilesite
Reference List:Iles (1881) American Chemical Journal: 3: 420.



Wuensch (1881) Mining index, leadville, Colorado. Nov. 5, 1881.



Larsen, E.P. and Glenn (1920) American Journal of Science: 50: 225.



Mellor, J.W. (1932) A Comprehensive Treatise on Inorganic and Theoretical Chemistry. 16 volumes, London: vol. 12: 402.



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.: 486-487.



Acta Crystallographica: 15 (1962) 815.



Acta Crystallographica, E58 (2002) i121-i123.
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    Localities for Ilesite
     		

    (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.

    Czech Republic
     
    

    • Bohemia (Böhmen; Boehmen)
    

      • Pardubice Region
    
    		No reference listed
    Japan
     
    

    • Hokkaido Island
    

      • Oshima peninsula
    

        • Kaminokuni
    
    		Nambu et al (1977) Sanko-Gakkai Kou'en-Youshi, 105.
    


      • Shiribeshi Province
    

        • Shakotan peninsula
    
    		Dr. Matsuo Nambu collection (curated at Geological Survey of Japan)
    Switzerland
     
    

    • Aargau
    

      • Mellikon
    
    		Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 223.
    USA
     
    

    • Colorado
    

      • Park Co.
    

        • Montezuma 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: 487.
    




Acta Cryst. (1962), 15, 815
    

    


    

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