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Kornelite

A valid IMA mineral species - grandfathered
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About KorneliteHide

Formula:
Fe2(SO4)3 · 7H2O
Colour:
Pale rose pink to violet.
Lustre:
Silky
Specific Gravity:
2.306
Crystal System:
Monoclinic
Name:
For Kornel Hlavacsek (1835-1914), Hungarian mining engineer at the pyrite mines, Banska Stavnica, Slovakia.
This page provides mineralogical data about Kornelite.


Unique IdentifiersHide

Mindat ID:
2253
Long-form identifier:
mindat:1:1:2253:4
GUID
(UUID V4):
453f6794-85f4-4517-9a74-6f52b6693ce7

IMA Classification of KorneliteHide

Approved, 'Grandfathered' (first described prior to 1959)
IMA Formula:
Fe3+2(SO4)3 · 7H2O (?)
First published:
1888

Classification of KorneliteHide

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
29.8.2.1

29 : HYDRATED ACID AND NORMAL SULFATES
8 : A2(XO4)3·H2O
25.10.8

25 : Sulphates
10 : Sulphates of Fe alone

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference
KnlIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of KorneliteHide

Silky
Transparency:
Transparent
Comment:
If fibrous
Colour:
Pale rose pink to violet.
Streak:
White
Cleavage:
Distinct/Good
On {100}
Density:
2.306 g/cm3 (Measured)    2.254 g/cm3 (Calculated)

Optical Data of KorneliteHide

Type:
Biaxial (+)
RI values:
nα = 1.572 nβ = 1.586 nγ = 1.640
2V:
Measured: 49° to 62°, Calculated: 56°
Max Birefringence:
δ = 0.068
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
very weak r>v

Chemistry of KorneliteHide

Mindat Formula:
Fe2(SO4)3 · 7H2O

Crystallography of KorneliteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/m
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 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}.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0000322KorneliteRobinson P D, Fang J H (1973) Crystal structures and mineral chemistry of hydrated ferric sulphates. III. The crystal structure of kornelite American Mineralogist 58 535-53919730293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
10.0 Å(FFF)
6.64 Å(FF)
4.67 Å(FF)
4.30 Å(F)
3.14 Å(F)
4.39 Å(mF)
3.50 Å(mF)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 7: Great Oxidation Event<2.4
47a : [Near-surface hydration of prior minerals]
47b : [Sulfates and sulfites]
Stage 10b: Anthropogenic minerals<10 Ka
55 : Anthropogenic mine minerals

Type Occurrence of KorneliteHide

Place of Conservation of Type Material:
Natural History Museum, Budapest, Hungary. Type specimen destroyed 1956, topotypes remain.
Geological Setting of Type Material:
Weathering product in a pyrite mine
Associated Minerals at Type Locality:
Reference:
Krenner, J. (1888) Huszonötödik akadémiai ülés. Magyar Tudományos Akadémia Értesítöje: 22: 131-131.

Other Language Names for KorneliteHide

German:Kornelit
Simplified Chinese:斜红铁矾
Spanish:Kornelita
Traditional Chinese:斜紅鐵礬

Common AssociatesHide

Associated Minerals Based on Photo Data:
2 photos of Kornelite associated with CopiapiteFe2+Fe3+4(SO4)6(OH)2 · 20H2O
2 photos of Kornelite associated with SzomolnokiteFeSO4 · H2O
1 photo of Kornelite associated with ParacoquimbiteFe4(SO4)6(H2O)12 · 6H2O
1 photo of Kornelite associated with JarositeKFe3+3(SO4)2(OH)6
1 photo of Kornelite associated with RömeriteFe2+Fe3+2(SO4)4 · 14H2O
1 photo of Kornelite associated with CoquimbiteAlFe3(SO4)6(H2O)12 · 6H2O

Related Minerals - Strunz-mindat GroupingHide

7.CB.SarvodaiteAl2(SO4)3 · 5H2O Mon. 2/m : P21/m
7.CB.02VoudourisiteCdSO4 · H2OMon. 2/m : P21/m
7.CB.05DwornikiteNi(SO4) · H2OMon. 2/m : B2/b
7.CB.05GunningiteZnSO4 · H2OMon. 2/m : B2/b
7.CB.05KieseriteMgSO4 · H2OMon. 2/m : B2/b
7.CB.05Poitevinite(Cu,Fe)SO4 · H2OTric. 1 : P1
7.CB.05SzmikiteMnSO4 · H2OMon. 2/m : B2/b
7.CB.05SzomolnokiteFeSO4 · H2OMon. 2/m : B2/b
7.CB.05CobaltkieseriteCoSO4 · H2OMon. 2/m : B2/b
7.CB.07SanderiteMgSO4 · 2H2OOrth. 2 2 2 : P21 21 21
7.CB.10BonattiteCuSO4 · 3H2OMon. m : Bb
7.CB.12BelogubiteCuZn(SO4)2 · 10H2OTric. 1 : P1
7.CB.15Aplowite(Co,Mn,Ni)SO4 · 4H2OMon. 2/m
7.CB.15Boyleite(Zn,Mg)SO4 · 4H2OMon. 2/m : P21/b
7.CB.15Ilesite(Mn,Zn,Fe)SO4 · 4H2OMon. 2/m
7.CB.15RozeniteFeSO4 · 4H2OMon. 2/m : P21/b
7.CB.15StarkeyiteMgSO4 · 4H2OMon. 2/m : P21/b
7.CB.15DrobeciteCdSO4 · 4H2OMon. 2/m : P21/m
7.CB.15CranswickiteMgSO4 · 4H2OMon. m : Bb
7.CB.20ChalcanthiteCuSO4 · 5H2OTric. 1 : P1
7.CB.20JôkokuiteMnSO4 · 5H2OTric. 1 : P1
7.CB.20PentahydriteMgSO4 · 5H2OTric. 1 : P1
7.CB.20SiderotilFeSO4 · 5H2OTric.
7.CB.25BianchiteZn(SO4) · 6H2OMon. 2/m : P2/m
7.CB.25ChvaleticeiteMn(SO4) · 6H2OMon. 2/m : B2/b
7.CB.25FerrohexahydriteFeSO4 · 6H2OMon. 2/m : B2/b
7.CB.25HexahydriteMgSO4 · 6H2OMon. 2/m : P2/m
7.CB.25MoorhouseiteCo(SO4) · 6H2OMon. 2/m : B2/b
7.CB.25NickelhexahydriteNi(SO4) · 6H2OMon. 2/m : B2/b
7.CB.30RetgersiteNiSO4 · 6H2OTet. 4 2 2 : P41 21 2
7.CB.35BieberiteCoSO4 · 7H2OMon. 2/m : P2/m
7.CB.35BoothiteCuSO4 · 7H2OMon. 2/m : P21/b
7.CB.35MallarditeMnSO4 · 7H2OMon. 2/m : P2/m
7.CB.35MelanteriteFe2+(H2O)6SO4 · H2OMon. 2/m : P21/b
7.CB.35Zincmelanterite(Zn,Cu,Fe)SO4 · 7H2OMon. 2/m : P21/b
7.CB.35Alpersite(Mg,Cu)(SO4) · 7H2OMon. 2/m : P21/b
7.CB.40EpsomiteMgSO4 · 7H2OOrth. 2 2 2 : P21 21 21
7.CB.40GoslariteZnSO4 · 7H2OOrth. 2 2 2 : P21 21 21
7.CB.40MorenositeNiSO4 · 7H2OOrth. 2 2 2 : P21 21 21
7.CB.45AlunogenAl2(SO4)3 · 17H2OTric. 1 : P1
7.CB.45Meta-alunogenAl2(SO4)3 · 12H2OOrth.
7.CB.50AluminocoquimbiteAl2Fe2(SO4)6(H2O)12 · 6H2OTrig. 3m (3 2/m) : P3 1c
7.CB.50Lazaridisite3CdSO4 · 8H2OMon. 2/m : B2/b
7.CB.52PararaisaiteCuMg[Te6+O4(OH)2] · 6H2OMon. 2/m : P21/b
7.CB.55CoquimbiteAlFe3(SO4)6(H2O)12 · 6H2OTrig. 3m (3 2/m) : P3 1c
7.CB.55ParacoquimbiteFe4(SO4)6(H2O)12 · 6H2OTrig. 3 : R3
7.CB.55Rhomboclase(H5O2)Fe3+(SO4)2 · 2H2OOrth. mmm (2/m 2/m 2/m) : Pnma
7.CB.55RaisaiteCuMg[Te6+O4(OH)2] · 6H2OMon. 2/m : B2/b
7.CB.57CaichengyuniteFe2+3Al2(SO4)6 · 30H2OMon.
7.CB.65QuenstedtiteFe2(SO4)3 · 11H2OTric. 1 : P1
7.CB.70LauseniteFe2(SO4)3 · 5H2OMon. 2/m : P21/m
7.CB.75LishizheniteZnFe2(SO4)4 · 14H2OTric. 1 : P1
7.CB.75RömeriteFe2+Fe3+2(SO4)4 · 14H2OTric. 1 : P1
7.CB.80RansomiteCuFe2(SO4)4 · 6H2OMon. 2/m : P21/b
7.CB.85ApjohniteMn2+Al2(SO4)4 · 22H2OMon. 2/m : P21/b
7.CB.85BíliniteFe2+Fe3+2(SO4)4 · 22H2OMon. 2/m : P21/b
7.CB.85Dietrichite(Zn,Fe2+,Mn2+)Al2(SO4)4 · 22H2OMon. 2/m : P21/b
7.CB.85HalotrichiteFeAl2(SO4)4 · 22H2OMon. 2 : P2
7.CB.85PickeringiteMgAl2(SO4)4 · 22H2OMon. 2/m : P21/b
7.CB.85Redingtonite(Fe2+,Mg,Ni)(Cr,Al)2(SO4)4 · 22H2OMon. 2
7.CB.85Wupatkiite(Co,Mg,Ni)Al2(SO4)4 · 22H2OMon. 2/m : P21/b
7.CB.90MeridianiiteMgSO4 · 11H2OTric. 1 : P1

Other InformationHide

Notes:
Water soluble
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for KorneliteHide

References for KorneliteHide

Reference List:

Localities for KorneliteHide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Australia
 
  • Queensland
    • City of Mount Isa
      • Mount Isa
Sielecki (1988)
Sielecki (1988)
  • Tasmania
    • West Coast municipality
      • Zeehan mining district
        • Mt Heemskirk mineral field
R Bottrill
Chile
 
  • Antofagasta
    • Antofagasta Province
      • Sierra Gorda
XRD and Wet Chemical by Gerhard Möhn
Germany
 
  • Baden-Württemberg
    • Freiburg Region
      • Ortenaukreis
        • Oberwolfach
Walenta (1992)
Greece
 
  • Attica
    • East Attica
      • Lavreotiki
        • Lavrion mining district
          • Plaka
            • Plaka Mines
Wendel et al. (1999)
Branko Rieck collection
          • Sounion
            • Cato Sounio mines
Branko Rieck collection
Iran
 
  • Kerman Province
    • Sirjan County
      • Pariz
Khorasanipour et al. (2011)
Japan
 
  • Hokkaidō Prefecture
    • Sorachi Subprefecture
      • Mikasa City
Miura et al. (1994)
Slovakia (TL)
 
  • Košice Region
    • Gelnica District
Palache et al. (1951) +1 other reference
Spain
 
  • Andalusia
    • Huelva
      • Minas de Riotinto
        • Rio Tinto Mines
Calvo (1999)
USA
 
  • Arizona
    • Cochise County
Anthony et al. (1995)
        • Queen Hill
Merwin et al. (1937) +3 other references
  • California
    • Amador County
      • Pardee Mining District
        • Sunnybrook
Van Nostrand Reinholt Press: 273 +1 other reference
    • Contra Costa County
      • Clayton
        • Mount Diablo (Mt Diablo)
    • Inyo County
Anthony et al. (2016)
Van Nostrand Reinholt Press: 273. +1 other reference
www.mineralsocal.org
Hasenmueller et al. (2005, March)
    • Santa Cruz County
      • Santa Cruz
Mineralogical Record: 17:315
    • Shasta County
      • Klamath Mountains
        • West Shasta Copper - Zinc Mining District
          • Iron Mountain [town]
            • Iron Mountain
Majzlan et al. (2011)
    • Trinity County
      • Coastal Range
        • Island Mountain
          • Moose Peak
Van Loan et al. (1959) +1 other reference
  • Utah
    • Emery County
Min News 6:8 p3
Schindler et al. (2003)
          • North Mesa Mine
Patrick Haynes. ID via the late Howard ...
    • Utah County
      • East Tintic Mining District
        • Dividend
          • Tintic Standard Mine
Palache et al. (1951) +1 other reference
  • Virginia
    • Carroll County
      • Southern Section-Blue Ridge Province
Dietrich (1990)
 
Mineral and/or Locality  
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