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Kornelite

Big Photo

Coso Hot Springs, Coso District (New Coso District), Inyo Co., California, USA
© 2008, JGW

Formula:
Fe
 
2
(SO
 
4
)
 
3
·7H
 
2
O
System:MonoclinicColour:Pale rose pink to violet.
Name:For Kornel Hlavacsek (1835-1914), Hungarian mining engineer at the pyrite mines, Banska Stavnica, Slovakia.
This page provides mineralogical data about Kornelite.

Classification of Kornelite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:6/C.08-30
Nickel-Strunz 10th (pending) edition ID:7.CB.60

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:29.8.2.1

29 : HYDRATED ACID AND NORMAL SULFATES
8 : A2(XO4)3·H2O
Hey's CIM Ref.:25.10.8

25 : Sulphates
10 : Sulphates of Fe alone
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Type Occurrence of Kornelite

Type Locality:Smolnik Mine (Szomolnok Mine; Schmolnitz Mine; Schmölnitz), Smolnik Mining District, Eastern Slovenské Rudohorie Mts, Košice Region, Slovakia
Place of Conservation of Type Material:Natural History Museum, Budapest, Hungary. Type specimen destroyed 1956, topotypes remain.
Year of Discovery:1888

Physical Properties of Kornelite

Lustre:Silky
Diaphaneity (Transparency):Transparent
Comment:If fibrous
Colour:Pale rose pink to violet.
Cleavage:Distinct/Good
On {100}
Density (measured):2.306 g/cm3
Density (calculated):2.254 g/cm3

Crystallography of Kornelite

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Space Group:P21/m {P1 1 21/m} {P21/m} {P1 21/m 1}
Cell Parameters:a = 14.3(1) Å, b = 20.12(2) Å, c = 5.425(4) Å
β = 96.8(1)°
Ratio:a:b:c = 0.711 : 1 : 0.27
Unit Cell Volume:V 1,549.88 ų (Calculated from Unit Cell)
Z:4
Morphology:Crystals lath-like {010} and acicular [001]. Crusts, tufted aggregates, globular masses with a radial-fibrous structure.
Twinning:Polysynthetic on {100}.

Optical Data of Kornelite

Type:Biaxial (+)
RI values: nα = 1.572 nβ = 1.586 nγ = 1.640
2V:Measured: 49° to 62°, Calculated: 56°
Maximum Birefringence:δ = 0.068

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

Chemical Properties of Kornelite

Formula:
Fe
 
2
(SO
 
4
)
 
3
·7H
 
2
O
Essential elements:Fe, H, O, S
All elements listed in formula:Fe, H, O, S
Analytical Data:Soluble in water.
Empirical Formula:
Fe
3+
2
(SO
 
4
)
 
3
·7H
 
2
O
Relationship of Kornelite to other Species
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.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.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:

- + 
25.10.1Szomolnokite
FeSO
 
4
·H
 
2
O
25.10.2Rozenite
FeSO
 
4
·4H
 
2
O
25.10.3Siderotil
FeSO
 
4
·5H
 
2
O
25.10.4Ferrohexahydrite
FeSO
 
4
·6H
 
2
O
25.10.5Melanterite
FeSO
 
4
·7H
 
2
O
25.10.6Rhomboclase
(H
 
5
O
 
2
)Fe
3+
 
(SO
 
4
)
 
2
·2H
 
2
O
25.10.7Lausenite
Fe
 
2
(SO
 
4
)
 
3
·6H
 
2
O
25.10.9Coquimbite
Fe
 
2
(SO
 
4
)
 
3
·9H
 
2
O
25.10.10Paracoquimbite
Fe
 
2
(SO
 
4
)
 
3
·9H
 
2
O
25.10.11Quenstedtite
Fe
 
2
(SO
 
4
)
 
3
·10H
 
2
O
25.10.12Ferricopiapite
Fe
 
5
(SO
 
4
)
 
6
O(OH)·20H
 
2
O
25.10.13Metahohmannite
Fe
3+
2
[O|(SO
 
4
)
 
2
] · 4H
 
2
O
25.10.14Hohmannite
Fe
3+
2
[O|(SO
 
4
)
 
2
] · 8H
 
2
O
25.10.15Butlerite
Fe
3+
 
[OH|SO
 
4
] · 2H
 
2
O
25.10.16Parabutlerite
Fe
3+
 
[OH|SO
 
4
] · 2H
 
2
O
25.10.17Amarantite
Fe
3+
2
[O|(SO
 
4
)
 
2
] · 7H
 
2
O
25.10.18Fibroferrite
Fe
3+
 
[OH|SO
 
4
] · 5H
 
2
O
25.10.19Hydroniumjarosite
(H
 
3
O)Fe
3+
3
(SO
 
4
)
 
2
(OH)
 
6
25.10.20Römerite
Fe
2+
 
Fe
3+
2
(SO
 
4
)
 
4
·14H
 
2
O
25.10.21Bílinite
Fe
2+
 
Fe
3+
2
(SO
 
4
)
 
4
·22H
 
2
O
25.10.22Copiapite
Fe
2+
 
Fe
3+
4
[OH|(SO
 
4
)
 
3
]
 
2
 · 20H
 
2
O
Other Names for Kornelite
Other Languages:
German:Kornelit
Russian:Корнелит
Spanish:Kornelita
Other Information
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 Kornelite
Reference List:Krenner (1888) Ak. Magyar, Értes.: 22: 131.



Posnjak and Merwin (1922) Journal of the American Chemical Society: 44: 1965.



Krenner (1926) Mat. Termés Ért.: 42: 1.



Loczka (1926) Mat. Termés. Ért.: 42: 6.



Schaller (1931) American Mineralogist: 16: 116.



Larsen, E.S. and Berman, H. (1934) The Microscopic Determination of the Nonopaque Minerals, Second edition, USGS Bulletin 848: 107.



Merwin and Posnjak (1937) American Mineralogist: 22: 567.



Schaller (1937) USGS Bull. 878: 123.



American Mineralogist (1973): 58: 535-539.



Bulletin de la Société française de Minéralogie et de Cristallographie (1964): 86: 126.


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  • Kornelite details from Handbook of Mineralogy (PDF)
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    Localities for Kornelite
    






    


    

    
Hide Locality List
    

    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
     
    

    • Queensland
    
    		[MinRec 19 p469-490 - "Sielecki, R: The Mount Isa-Cloncurry mineral field"]
    Germany
     
    

    • Baden-Württemberg
    

      • Black Forest
    

        • Wolfach
    

          • Oberwolfach
    

            • Rankach valley
    
    		Walenta, K. (1992): Die Mineralien des Schwarzwaldes. Chr. Weise Verlag, München, 336 pp. (in German)
    Greece
     
    

    • Attikí (Attica; Attika) Prefecture
    

      • Lavrion (Laurion; Laurium) District
    

        • Lavrion District Mines
    

          • Plaka
    

            • Plaka Mines
    
    		No reference listed
    Japan
     
    

    • Hokkaido Island
    

      • Sorachi Province
    

        • Mikasa city
    
    		Miura et al (1994) Mineralogical Magazine, 58, 649-653.
    Slovakia
     
    

    • Košice Region
    

      • Eastern Slovenské Rudohorie Mts
    

        • Smolnik Mining 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: 531; Koděra,  M.  et al., 1986 a  1990 : Topografická mineralógia Slovenska, diel  1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590
    Spain
     
    

    • Andalusia
    

      • Huelva
    

        • Minas de Riotinto
    

          • Rio Tinto Mines
    
    		Calvo, M. et al.(1999). Bocamina (4), 50-86
    USA
     
    

    • Arizona
    

      • Cochise Co.
    

        • Mule Mts
    

          • Warren District
    
    		No reference listed
    






              • Queen Hill
    
    		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: 531; Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 268, 415; Merwin, H.E. & E. Posnjak (1937), Sulphate encrustations in the Copper Queen mine, Bisbee, AZ, Am.Min.: 22: 567-571; Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 59, 62.
    

    • California
    

      • Amador Co.
    

        • Ione
    
    		Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 273, 274.
    


      • Contra Costa Co.
    

        • Clayton
    

          • Mount Diablo
    

    


      • Inyo Co.
    

        • Coso District (New Coso District)
    
    		Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols
    



        • Death Valley
    
    		www.mineralsocal.org
    


      • Santa Cruz Co.
    

        • Santa Cruz
    
    		Mineralogical Record: 17:315
    


      • Trinity Co.
    

        • Island Mountain
    
    		Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols
    

    • Utah
    

      • Emery Co.
    

        • San Rafael District (San Rafael Swell)
    
    		M. Schindler et al. (2003) Can. Mineral. 41, 83-90
    



Min News 6:8 p3
    


      • Utah Co.
    

        • East Tintic Mts
    

          • East Tintic District
    
    		UGMS Bull 117 Minerals and Mineral Localities of Utah; 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: 531.
    

    • Virginia
    

      • Carroll Co.
    

        • Southern Section-Blue Ridge Province
    
    		Minerals of Virginia, 1990 by R. V. Dietrich
    

    


    

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