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Kornelite

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Formula:
Fe2(SO4)3 · 7H2O
System:
Monoclinic
Colour:
Pale rose pink to violet.
Lustre:
Silky
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

Approved, 'Grandfathered' (first described prior to 1959)
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

Physical Properties of Kornelite

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

Optical Data of Kornelite

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

Chemical Properties of Kornelite

Formula:
Fe2(SO4)3 · 7H2O
IMA Formula:
Fe23+(SO4)3 · 7H2O
Elements listed in formula:
Analytical Data:
Soluble in water.

Crystallography of Kornelite

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 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}.

Type Occurrence of Kornelite

Place of Conservation of Type Material:
Natural History Museum, Budapest, Hungary. Type specimen destroyed 1956, topotypes remain.
Empirical Formula:
Fe23+(SO4)3 · 7H2O

Relationship of Kornelite to other Species

7.CB.05Dwornikite(Ni,Fe)SO4 · H2O
7.CB.05GunningiteZnSO4 · H2O
7.CB.05KieseriteMgSO4 · H2O
7.CB.05Poitevinite(Cu,Fe,Zn)SO4 · H2O
7.CB.05SzmikiteMnSO4 · H2O
7.CB.05SzomolnokiteFeSO4 · H2O
7.CB.05CobaltkieseriteCoSO4 · H2O
7.CB.07SanderiteMgSO4 · 2H2O
7.CB.10BonattiteCuSO4 · 3H2O
7.CB.15Aplowite(Co,Mn,Ni)SO4 · 4H2O
7.CB.15Boyleite(Zn,Mg)SO4 · 4H2O
7.CB.15Ilesite(Mn,Zn,Fe)SO4 · 4H2O
7.CB.15RozeniteFeSO4 · 4H2O
7.CB.15StarkeyiteMgSO4 · 4H2O
7.CB.15DrobeciteCdSO4 · 4H2O
7.CB.15CranswickiteMgSO4 · 4H2O
7.CB.20ChalcanthiteCuSO4 · 5H2O
7.CB.20JôkokuiteMnSO4 · 5H2O
7.CB.20PentahydriteMgSO4 · 5H2O
7.CB.20SiderotilFeSO4 · 5H2O
7.CB.25Bianchite(Zn,Fe)SO4 · 6H2O
7.CB.25Chvaleticeite(Mn,Mg)SO4 · 6H2O
7.CB.25FerrohexahydriteFeSO4 · 6H2O
7.CB.25HexahydriteMgSO4 · 6H2O
7.CB.25Moorhouseite(Co,Ni,Mn)SO4 · 6H2O
7.CB.25Nickelhexahydrite(Ni,Mg,Fe)SO4 · 6H2O
7.CB.30RetgersiteNiSO4 · 6H2O
7.CB.35BieberiteCoSO4 · 7H2O
7.CB.35BoothiteCuSO4 · 7H2O
7.CB.35MallarditeMnSO4 · 7H2O
7.CB.35MelanteriteFeSO4 · 7H2O
7.CB.35Zincmelanterite(Zn,Cu,Fe)SO4 · 7H2O
7.CB.35Alpersite(Mg,Cu)[SO4] · 7H2O
7.CB.40EpsomiteMgSO4 · 7H2O
7.CB.40GoslariteZnSO4 · 7H2O
7.CB.40MorenositeNiSO4 · 7H2O
7.CB.45AlunogenAl2(SO4)3 · 17H2O
7.CB.45Meta-alunogenAl2(SO4)3 · 12H2O
7.CB.50AluminocoquimbiteFeAl(SO4)3 · 9H2O
7.CB.55CoquimbiteFe2-xAlx(SO4)3 · 9H2O, x ~0.5
7.CB.55ParacoquimbiteFe2(SO4)3 · 9H2O
7.CB.55Rhomboclase(H5O2)Fe3+(SO4)2 · 2H2O
7.CB.65QuenstedtiteFe2(SO4)3 · 11H2O
7.CB.70LauseniteFe2(SO4)3·5H2O
7.CB.75LishizheniteZnFe2(SO4)4 · 14H2O
7.CB.75RömeriteFe2+Fe23+(SO4)4 · 14H2O
7.CB.80RansomiteCuFe2(SO4)4 · 6H2O
7.CB.85ApjohniteMn2+Al2(SO4)4 · 22H2O
7.CB.85BíliniteFe2+Fe23+(SO4)4 · 22H2O
7.CB.85Dietrichite(Zn,Fe2+,Mn2+)Al2(SO4)4 · 22H2O
7.CB.85HalotrichiteFeAl2(SO4)4 · 22H2O
7.CB.85PickeringiteMgAl2(SO4)4 · 22H2O
7.CB.85Redingtonite(Fe2+,Mg,Ni)(Cr,Al)2(SO4)4·22H2O
7.CB.85Wupatkiite(Co,Mg,Ni)Al2(SO4)4·22H2O
7.CB.90MeridianiiteMgSO4 · 11H2O
25.10.1SzomolnokiteFeSO4 · H2O
25.10.2RozeniteFeSO4 · 4H2O
25.10.3SiderotilFeSO4 · 5H2O
25.10.4FerrohexahydriteFeSO4 · 6H2O
25.10.5MelanteriteFeSO4 · 7H2O
25.10.6Rhomboclase(H5O2)Fe3+(SO4)2 · 2H2O
25.10.7LauseniteFe2(SO4)3·5H2O
25.10.9CoquimbiteFe2-xAlx(SO4)3 · 9H2O, x ~0.5
25.10.10ParacoquimbiteFe2(SO4)3 · 9H2O
25.10.11QuenstedtiteFe2(SO4)3 · 11H2O
25.10.12FerricopiapiteFe5(SO4)6O(OH) · 20H2O
25.10.13MetahohmanniteFe23+(SO4)2O · 4H2O
25.10.14HohmanniteFe23+(SO4)2O · 8H2O
25.10.15ButleriteFe3+(SO4)(OH) · 2H2O
25.10.16ParabutleriteFe3+(SO4)(OH) · 2H2O
25.10.17AmarantiteFe23+(SO4)2O · 7H2O
25.10.18FibroferriteFe3+(SO4)(OH) · 5H2O
25.10.19Hydroniumjarosite(H3O)Fe33+(SO4)2(OH)6
25.10.20RömeriteFe2+Fe23+(SO4)4 · 14H2O
25.10.21BíliniteFe2+Fe23+(SO4)4 · 22H2O
25.10.22CopiapiteFe2+Fe43+(SO4)6(OH)2 · 20H2O

Other Names for Kornelite

Name in Other Languages:
German:Kornelit
Simplified Chinese:斜红铁矾
Spanish:Kornelita
Traditional Chinese:斜紅鐵礬

Other Information

Health Risks:
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.

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

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


Internet Links for Kornelite

mindat.org URL:
https://www.mindat.org/min-2253.html
Please feel free to link to this page.

Localities for Kornelite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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"]
    • Mount Isa City Shire
      • Mount Isa
Sielecki, R. (1988) The Mount Isa-Cloncurry mineral field. Mineralogical Record, Vol. 19, pg. 469-490.
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 Prefecture (Attica; Attika)
    • Lavrion District (Laurion; Laurium)
      • Lavrion District Mines
        • Plaka
          • Plaka Mines
Wendel, W. & Rieck, B. (1999): Lavrion: Die komplette Mineralliste. Lapis, 24 (7-8), 61-63.
Branko Rieck Collection
        • Sounion area
Branko Rieck Collection
Iran
 
  • Kerman Province
    • Rafsanjan County
      • Pariz
Khorasanipour, M., Tangestani, M. H., Naseh, R., & Hajmohammadi, H. (2011). Hydrochemistry, mineralogy and chemical fractionation of mine and processing wastes associated with porphyry copper mines: a case study from the Sarcheshmeh mine, SE Iran. Applied Geochemistry, 26(5), 714-730.
Japan
 
  • Hokkaido
    • Sorachi Province
      • Mikasa City
Miura et al (1994) Mineralogical Magazine, 58, 649-653.
Slovakia (TL)
 
  • Košice Region
    • Gelnica Co.
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 (Riotinto Mines)
Calvo, M. et al.(1999). Bocamina (4), 50-86
USA
 
  • Arizona
    • Cochise Co.
      • Mule Mts
        • Warren District
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.:69
            • 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.
      • Pardee District
        • Sunnybrook
Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 273, 274.
    • Contra Costa Co.
      • Diablo Range
        • Clayton
          • Mount Diablo State Park
            • Mount Diablo (Mt Diablo)
    • Inyo Co.
      • Coso Mts (Coso Range)
        • Coso District (New Coso District)
Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols
Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 273.
www.mineralsocal.org
Hasenmueller, E. A., & Bish, D. L. (2005, March). The hydration and dehydration of hydrous ferric iron sulfates. In 36th Annual Lunar and Planetary Science Conference (Vol. 36).
    • Santa Cruz Co.
      • Santa Cruz
Mineralogical Record: 17:315
    • Shasta Co.
      • Klamath Mts
        • West Shasta Copper - Zinc District
          • Iron Mountain [town]
            • Iron Mountain
Majzlan, J., Alpers, C. N., Koch, C. B., McCleskey, R. B., Myneni, S. C., & Neil, J. M. (2011). Vibrational, X-ray absorption, and Mössbauer spectra of sulfate minerals from the weathered massive sulfide deposit at Iron Mountain, California. Chemical Geology, 284(3), 296-305.
    • Trinity Co.
      • Coastal Range
        • Island Mountain
          • Moose Peak
Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols; Van Loan, P. R., & Nuffield, E. W. (1959). An x-ray study of roemerite [California]. The Canadian Mineralogist, 6(3), 348-356.
  • Utah
    • Emery Co.
      • San Rafael District (San Rafael Swell)
Min News 6:8 p3
M. Schindler et al. (2003) Can. Mineral. 41, 83-90
Patrick Haynes. ID via the late Howard Evans, Jr.
    • 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
Mineral and/or Locality  
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