Corkite
A valid IMA mineral species - grandfathered
This page kindly sponsored by Douglas Merson
About Corkite
Formula:
PbFe3(PO4)(SO4)(OH)6
Colour:
Brown to light yellowish brown, pale yellow, yellowish green to dark green
Lustre:
Vitreous, Sub-Vitreous, Resinous, Waxy, Greasy
Hardness:
3½ - 4½
Specific Gravity:
4.295
Crystal System:
Trigonal
Member of:
Name:
Named in 1869 by Gilbert-Joseph Adam after the first occurrence at County Cork, Ireland.
The phosphate analogue of beudantite with which a complete solid-solution range exists. The ferric iron analogue of hinsdalite. Also forms a solid solution with kintoreite.
An uncommon, low-temperature, secondary mineral occurring in the oxidised zones of hydrothermal base-metal deposits.
An uncommon, low-temperature, secondary mineral occurring in the oxidised zones of hydrothermal base-metal deposits.
Unique Identifiers
Mindat ID:
1130
Long-form identifier:
mindat:1:1:1130:9
GUID
(UUID V4):
(UUID V4):
8626a308-dffe-4742-834e-5dd1db447564
IMA Classification of Corkite
Approved, 'Grandfathered' (first described prior to 1959)
IMA Formula:
PbFe3+3(SO4)(PO4)(OH)6
Classification of Corkite
8.BL.05
8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
L : With medium-sized and large cations, (OH, etc.):RO4 = 3:1
8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
L : With medium-sized and large cations, (OH, etc.):RO4 = 3:1
43.4.1.2
43 : COMPOUND PHOSPHATES, ETC.
4 : Anhydrous Compound Phosphates, etc·, Containing Hydroxyl or Halogen
43 : COMPOUND PHOSPHATES, ETC.
4 : Anhydrous Compound Phosphates, etc·, Containing Hydroxyl or Halogen
22.3.23
22 : Phosphates, Arsenates or Vanadates with other Anions
3 : Phosphates, arsenates or vanadates with sulphates
22 : Phosphates, Arsenates or Vanadates with other Anions
3 : Phosphates, arsenates or vanadates with sulphates
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Symbol | Source | Reference |
---|---|---|
Cok | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Pronunciation of Corkite
Pronunciation:
Play | Recorded by | Country |
---|---|---|
Jolyon Ralph | United Kingdom |
Physical Properties of Corkite
Vitreous, Sub-Vitreous, Resinous, Waxy, Greasy
Transparency:
Transparent, Translucent
Colour:
Brown to light yellowish brown, pale yellow, yellowish green to dark green
Hardness:
3½ - 4½ on Mohs scale
Tenacity:
Brittle
Cleavage:
Perfect
On {0001}, perfect.
On {0001}, perfect.
Density:
4.295 g/cm3 (Measured) 4.31 g/cm3 (Calculated)
Optical Data of Corkite
Type:
Uniaxial (-)
RI values:
nω = 1.930 nε = 1.930 n = 1.93 - 1.96
Birefringence:
0.03
Max Birefringence:
δ = 0.000
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
Very High
Pleochroism:
Non-pleochroic
Comments:
Commonly anomalously biaxial, exhibiting lamellar structure.
Chemistry of Corkite
Mindat Formula:
PbFe3(PO4)(SO4)(OH)6
Crystallography of Corkite
Crystal System:
Trigonal
Class (H-M):
3m (3 2/m) - Hexagonal Scalenohedral
Space Group:
R3m
Cell Parameters:
a = 7.3065(5) Å, c = 16.897(2) Å
Ratio:
a:c = 1 : 2.313
Unit Cell V:
781.2 ų
Z:
3
Morphology:
Pseudocubic. Crystals pseudocubic rhombohedral with prominent {1011}. Commonly in crusts, massive.
Comment:
Space group erroneously assumed to be R3m by Giuseppetti and Tadini (1987) (cell: 7.820, 16.821 A).
Crystal Structure
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
---|---|---|---|---|---|---|---|
0014810 | Corkite | Giuseppe G, Tadini C (1987) Corkite, PbFe3(SO4)(PO4)(OH)6, its crystal structure and ordered arrangement of the tetrahedral cations Neues Jahrbuch fur Mineralogie, Monatshefte 1987 71-81 | 1987 | Dernbach, Hessen-Nassau, Germany | 0 | 293 | |
0014811 | Corkite | Giuseppe G, Tadini C (1987) Corkite, PbFe3(SO4)(PO4)(OH)6, its crystal structure and ordered arrangement of the tetrahedral cations Neues Jahrbuch fur Mineralogie, Monatshefte 1987 71-81 | 1987 | Dernbach, Hessen-Nassau, Germany | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
5.86 Å | (65) |
3.61 Å | (35) |
3.03 Å | (100) |
2.793 Å | (35) |
2.508 Å | (30) |
2.237 Å | (55) |
1.482 Å | (35) |
Comments:
ICDD 17-471
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
Stage 7: Great Oxidation Event | <2.4 |
47a : [Near-surface hydration of prior minerals] | |
47b : [Sulfates and sulfites] | |
47c : [Carbonates, phosphates, borates, nitrates] |
Type Occurrence of Corkite
Place of Conservation of Type Material:
No designated type material.
Geological Setting of Type Material:
Manganese-Copper vein deposit.
Associated Minerals at Type Locality:
Synonyms of Corkite
Other Language Names for Corkite
Relationship of Corkite to other Species
Member of:
Other Members of this group:
Beudantite | PbFe3(AsO4)(SO4)(OH)6 | Trig. 3m (3 2/m) : R3m |
Cloudite | BaFe3+3(PO4)(SO4)(OH)6 | Trig. 3m (3 2/m) : R3m |
Gallobeudantite | PbGa3(AsO4)(SO4)(OH)6 | Trig. 3m : R3m |
Hidalgoite | PbAl3(AsO4)(SO4)(OH)6 | Trig. 3m : R3m |
Hinsdalite | PbAl3(PO4)(SO4)(OH)6 | Trig. 3m (3 2/m) : R3m |
Kemmlitzite | SrAl3(AsO4)(SO4)(OH)6 | Trig. 3m (3 2/m) : R3m |
Oberwolfachite | SrFe3+3(AsO4)(SO4)(OH)6 | Trig. 3m (3 2/m) : R3m |
Svanbergite | SrAl3(PO4)(SO4)(OH)6 | Trig. 3m (3 2/m) : R3m |
UM2011-07-POSO:AlBaH | BaAl3(PO4)(SO4)(OH)6 | |
Unnamed (Fe-analogue of Weilerite and Ba-analogue of Oberwolfachite) | BaFe3(AsO4)(SO4)(OH)6 | |
Weilerite | BaAl3(AsO4)(SO4)(OH)6 | Hex. |
Woodhouseite | CaAl3(PO4)(SO4)(OH)6 | Trig. 3m (3 2/m) : R3m |
Forms a series with:
Common Associates
Associated Minerals Based on Photo Data:
50 photos of Corkite associated with Goethite | α-Fe3+O(OH) |
21 photos of Corkite associated with Quartz | SiO2 |
21 photos of Corkite associated with Plumbogummite | PbAl3(PO4)(PO3OH)(OH)6 |
12 photos of Corkite associated with Tsumebite | Pb2Cu(PO4)(SO4)(OH) |
11 photos of Corkite associated with Pyromorphite | Pb5(PO4)3Cl |
7 photos of Corkite associated with Hinsdalite | PbAl3(PO4)(SO4)(OH)6 |
7 photos of Corkite associated with Plumbojarosite | Pb0.5Fe3+3(SO4)2(OH)6 |
6 photos of Corkite associated with Baryte | BaSO4 |
6 photos of Corkite associated with Carminite | PbFe3+2(AsO4)2(OH)2 |
5 photos of Corkite associated with Tsumcorite | PbZn2(AsO4)2 · 2H2O |
Related Minerals - Strunz-mindat Grouping
8.BL. | Graulichite-(La) | LaFe3+3(AsO4)2(OH)6 |
8.BL. | Oberwolfachite | SrFe3+3(AsO4)(SO4)(OH)6 |
8.BL. | Kiryuite | NaMnAl(PO4)F3 |
8.BL. | Cloudite | BaFe3+3(PO4)(SO4)(OH)6 |
8.BL.05 | Beudantite | PbFe3(AsO4)(SO4)(OH)6 |
8.BL.05 | Hidalgoite | PbAl3(AsO4)(SO4)(OH)6 |
8.BL.05 | Hinsdalite | PbAl3(PO4)(SO4)(OH)6 |
8.BL.05 | Kemmlitzite | SrAl3(AsO4)(SO4)(OH)6 |
8.BL.05 | Svanbergite | SrAl3(PO4)(SO4)(OH)6 |
8.BL.05 | Weilerite | BaAl3(AsO4)(SO4)(OH)6 |
8.BL.05 | Woodhouseite | CaAl3(PO4)(SO4)(OH)6 |
8.BL.05 | Gallobeudantite | PbGa3(AsO4)(SO4)(OH)6 |
8.BL.05 | UM2011-07-POSO:AlBaH | BaAl3(PO4)(SO4)(OH)6 |
8.BL.10 | Arsenogoyazite | SrAl3(AsO4)(AsO3OH)(OH)6 |
8.BL.10 | Arsenogorceixite | BaAl3(AsO4)(AsO3OH)(OH)6 |
8.BL.10 | Arsenocrandallite | CaAl3(AsO4)(AsO3OH)(OH)6 |
8.BL.10 | Benauite | SrFe3+3(PO4)(PO3OH)(OH)6 |
8.BL.10 | Crandallite | CaAl3(PO4)(PO3OH)(OH)6 |
8.BL.10 | Dussertite | BaFe3+3(AsO4)(AsO3OH)(OH)6 |
8.BL.10 | Eylettersite | Th0.75Al3(PO4)2(OH)6 |
8.BL.10 | Gorceixite | BaAl3(PO4)(PO3OH)(OH)6 |
8.BL.10 | Goyazite | SrAl3(PO4)(PO3OH)(OH)6 |
8.BL.10 | Kintoreite | PbFe3(PO4)(PO3OH)(OH)6 |
8.BL.10 | Philipsbornite | PbAl3(AsO4)(AsO3OH)(OH)6 |
8.BL.10 | Plumbogummite | PbAl3(PO4)(PO3OH)(OH)6 |
8.BL.10 | Segnitite | PbFe3+3AsO4(AsO3OH)(OH)6 |
8.BL.10 va | Viséite | |
8.BL.10 | Springcreekite | BaV3+3(PO4)2(OH,H2O)6 |
8.BL.10 | Galloplumbogummite | Pb(Ga,Al,Ge)3(PO4)2(OH)6 |
8.BL.13 | Arsenoflorencite-(La) | LaAl3(AsO4)2(OH)6 |
8.BL.13 | Arsenoflorencite-(Nd) | NdAl3(AsO4)2(OH)6 |
8.BL.13 | Arsenoflorencite-(Ce) | CeAl3(AsO4)2(OH)6 |
8.BL.13 | Florencite-(Ce) | CeAl3(PO4)2(OH)6 |
8.BL.13 | Florencite-(La) | LaAl3(PO4)2(OH)6 |
8.BL.13 | Florencite-(Nd) | NdAl3(PO4)2(OH)6 |
8.BL.13 | Waylandite | BiAl3(PO4)2(OH)6 |
8.BL.13 | Zaïrite | BiFe3+3(PO4)2(OH)6 |
8.BL.13 | Arsenowaylandite | BiAl3(AsO4)2(OH)6 |
8.BL.13 | Graulichite-(Ce) | CeFe3+3(AsO4)2(OH)6 |
8.BL.13 | Florencite-(Sm) | SmAl3(PO4)2(OH)6 |
8.BL.13 | Unnamed (As-analogue of Zaïrite) | (Bi,Pb)Fe3+3(AsO4)2(OH)6 |
8.BL.15 | Viitaniemiite | Na(Ca,Mn2+)Al(PO4)(F,OH)3 |
8.BL.25 | Pattersonite | PbFe3+3(PO4)2(OH)5 · H2O |
Fluorescence of Corkite
Not Fluorescent
Other Information
Notes:
Readily soluble in warm HCl.
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 Corkite
mindat.org URL:
https://www.mindat.org/min-1130.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
External Links:
Mineral Dealers:
References for Corkite
Reference List:
Hartley, E. G. J. (1900) Communications from the Oxford Mineralogical Laboratory. On the constitution of the natural Arsenates and Phosphates. Part IV.—Beudantite. Mineralogical Magazine and Journal of the Mineralogical Society, 12 (57) 234-238 doi:10.1180/minmag.1900.012.57.02
Miers, H. A. (1900) Communications from the Oxford Mineralogical Laboratory. Note on the Hitchcockite, Plumbogummite and Beudantite analysed by Mr. Hartley. Mineralogical Magazine and Journal of the Mineralogical Society, 12 (57) 239-243 doi:10.1180/minmag.1900.012.57.03
Larsen, Esper S. (1921) The microscopic determination of the nonopaque minerals. Bulletin Vol. 679. US Geological Survey doi:10.3133/b679 p.47 - (as beudantite)
Scott, Keith M. (1987) Solid solution in, and classification of, gossan-derived members of the alunite-jarosite family, northwest Queensland, Australia. American Mineralogist, 72 (1-2) 178-187
Sato, Eriko, Nakai, Izumi, Miyawaki, Ritsuro, Matsubara, Satoshi (2009) Crystal structures of alunite family minerals: beaverite, corkite, alunite, natroalunite, jarosite, svanbergite, and woodhouseite. Neues Jahrbuch für Mineralogie - Abhandlungen, 185 (3) 313-322 doi:10.1127/0077-7757/2009/0128
Bayliss, P., Kolitsch, U., Nickel, E. H., Pring, A. (2010) Alunite supergroup: recommended nomenclature. Mineralogical Magazine, 74 (5) 919-927 doi:10.1180/minmag.2010.074.5.919
Localities for Corkite
Locality List
- 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.
All localities listed without proper references should be considered as questionable.
Australia | |
| Rankin et al. (2002) |
| Graham et al. (2005) |
| Gilligan et al. (1995) |
| Birch et al. (1997) |
| Birch et al. (1997) |
The Daydream Mine | |
| D.McLaughlin 1988. Secondary Minerals ... +1 other reference |
| |
| Lottermoser et al. (2008) |
| Miningdataonline +1 other reference |
| Nickel et al. (1993) |
Mineralogical Record 24 | |
| Downes et al. (1998) |
Austria | |
| Kolitsch et al. (2019) |
| Niedermayr et al. (1995) |
| Auer et al. (2017) |
Puttner (1994) +1 other reference | |
| Niedermayr et al. (1995) |
Puttner | |
| Carinthia II (2017) |
| Mikl et al. (2014) |
| Kolitsch (2013) +1 other reference |
| Brandstätter et al. (2000) |
| Auer (2021) |
| PUTTNER (1998) |
| Auer (2020) |
| Jakely (2008) |
| Kolitsch (2015) |
Belgium | |
| Fransolet et al. (1974) +3 other references |
Bosnia and Herzegovina | |
| Palache et al. (1951) |
Bulgaria | |
| www.clmc.bas.bg (2003) |
| Kunov (1996) +1 other reference |
| Kunov et al. (1997) |
Burkina Faso | |
| Kříbek et al. (2016) |
Canada | |
| Watson et al. (1996) |
Chile | |
| Samples analysed by Dr. Jochen Schlüter (Hamburg University) |
| Maurizio Dini collection - analysed ... |
China | |
| Diankai Chen and Danshen Zhou (1984) |
Diankai Chen and Danshen Zhou (1984) | |
Czech Republic | |
| Lapis 2002 (7/8) |
| Šístek P. |
| Pauliš Petr et al. (2012) |
France | |
| - (SEM-EDS analysed Chollet Pascal at "Laboratoire Magmas et Volcans" - Université Clermont Auvergne, CNRS, IRD, UJM) |
| Cuchet et al. (2000) |
| Boisson J.-M. et al. (2023) +1 other reference |
| Le Roc'h P. () |
| Georges FAVREAU collection + EDX ... |
Lheur (2023) | |
| J.-P. Bourgarel collection. EDS by the ... |
| Favreau et al. (2013) |
Germany | |
| Lapis 21 (12) |
| Walenta (1992) +2 other references |
| Walenta (1992) |
| Weiß (1990) |
| Collection of Steffen Michalski |
| www.mineralienatlas.de (n.d.) |
Weiß (1990) | |
| Weiß (1990) |
| Weiß (1990) |
| Weiß (1990) |
| Markus Gerstmann Collection (EDS-analysed) |
| J. Gröbner: Neufunde aus den Bergbaurevieren St. Andreasberg et al. (2007) |
| Wittern (2001) |
| Schnorrer et al. (2008) |
| Wittern (2001) |
Reinhardt et al. (2016) | |
| Johannes Markus Henrich +2 other references |
| Hucko et al. (2009) |
Hucko (2010) | |
| Graf et al. (1992) |
| Graf et al. (1992) |
| Weiß (1990) |
| Lapis 1988 (1) |
| Heckmann et al. (2005) |
Heckmann et al. (1990) | |
| Weiss: "Mineralienfundstellen et al. (Munich) |
| Lapis (2) |
| undefined |
| Graf et al. (1991) |
| Markl et al. (1990) |
| Lapis (9) |
| Weiss: "Mineralienfundstellen et al. (Munich) +1 other reference |
| Wittern (2001) |
| Der Aufschluss Vol.55 |
| Lapis (9) +3 other references |
| Gerhard Müller: Bergbau-PSL-Mineralogie et al. (Saarbrücken 1996) |
| Lapis 30 (7/8) |
| collection Joachim Esche |
| Wittern (2001) |
Greece | |
| NHM Vienna collection (SEM-EDS-analysed) +2 other references |
Hungary | |
| HOM Database |
Ireland (TL) | |
| Palache et al. (1951) +1 other reference |
Italy | |
| Carnia (Udine, Friuli-Venezia Giulia) +1 other reference |
| Bracco R. (2007) +1 other reference |
Balestra et al. (2011) | |
| Vergani et al. (2020) |
| Vergani et al. (2020) |
| Piccoli et al. (2007) |
Secco L. et al. (3) | |
| Piccoli et al. (2007) |
| ALBERTINI C. (2014) |
| Claudio Albertini & Paolo Gentile |
| Joy Desor - EDS analysis 08/2016 on ... |
| Orlandi (2011) |
| Palache et al. (1951) |
| Stara et al. (1996) |
| Ciriotti M.E. and Blass.G. (2010) |
| Bortolozzi G.M. et al. (2022) |
| SEM/EDX analysis by Dario Cericola +1 other reference |
| Rocchetti I. (2012) |
| SEM/EDX analysis by AMI SIUK |
Bortolozzi et al. (2021) | |
| Biagioni et al. (2013) |
Biagioni et al. (2013) | |
| Studi e Ricerche (2013) |
Japan | |
| Dr. Kameki Kinoshita collection (curated at Geological Survey of Japan) +1 other reference |
| K. Watanabe collection |
| Yamada (2004) |
| Takashi Yamada et al. (1999) |
Kazakhstan | |
| Palache et al. (1951) |
Mexico | |
| Panczner (1987) |
| Panczner (1987) |
Panczner (1987) | |
| Panczner (1987) |
| Parker (2010) |
Namibia | |
| Gebhard (1999) |
| Brandstätter et al. (2013) |
Portugal | |
| Alves et al. (2017) |
| EMPA analyses by Christian Rewitzer |
Russia | |
| Rakhimov et al. (2023) |
| Ripp et al. (2019) |
Slovakia | |
| Martin Števko-unpublished |
Števko M. et al. (Slovenská republika) | |
| Martin Števko-unpublished |
| Ferenc Š. et al. (2014) |
South Africa | |
| Cairncross et al. (1995) |
| SAMS (South African Micromount Society) |
| Cairncross et al. (1995) |
Meyer et al. (1986) | |
Spain | |
| Joan Rosell et al. (2022) |
| Viñals et al. (2011) |
Switzerland | |
| EDXS analyses |
Ansermet et al. (2021) | |
Tunisia | |
| Dill |
UK | |
| Golley et al. (1995) |
| Golley et al. (1995) |
| Golley et al. (1995) |
| Green et al. (1997) |
| Green et al. (2008) |
Steve Rust collection +1 other reference | |
Cooper et al. (1990) | |
Stanley et al. (1991) | |
| Cotterell et al. (2007) +1 other reference |
Briscoe et al. (2008) | |
| S Rust collection |
S Rust collection | |
| S.Rust Collection |
| National Museum of Wales Database. +2 other references |
USA | |
| Walstrom (n.d.) |
"The Accidental Pocket" talk presented ... | |
| Raman analyzed at the University of ... |
| Raman confirmed by Dr. Yang |
| Anthony et al. (1995) |
| Mineral News Vol 16-5 Adams +1 other reference |
| Collected by and in the collection of ... |
| Carnein et al. (2005) |
| Carlson et al. (2007) |
| www.mineralnews.com (2002) |
| Gobla (2012) +1 other reference |
| - (2005) |
| Castor et al. (2004) |
| Castor et al. (2004) |
| Walstrom (n.d.) |
| Rocks & Minerals Vol. 74 No. 6 Nov/Dec ... +1 other reference |
| Rocks & Minerals (2010) |
| Cooper et al. (1991) |
| D. Court Collection +1 other reference |
| M Massis collection |
Mineeralogical Record: 22 (5) | |
Jerry Cone Collection | |
[Mineralogical Record 30:337] | |
| Pxrd and EDS via Inna Lykova |
| Smith et al. (1977) |
Smith II (1978) | |
| Dana 6: A3: 14 +2 other references |
Butler (1913) | |
Bullock (1981) | |
Bullock (1981) | |
Dana 6: A3: 14 +3 other references | |
| Collected by and in the collection of ... |
| Encyclopedia of Mins. |
Zambia | |
| Southwood et al. (2019) |
Quick NavTopAbout CorkiteUnique IdentifiersIMA Classification Classification Mineral SymbolsPronunciation Physical Properties Optical Data Chemistry Crystallography Crystal StructureX-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsOther LanguagesRelationshipsCommon AssociatesStrunz-MindatFluorescence Other InformationInternet Links References Localities Locality List
Cove Vein, Whytes Cleuch, Wanlockhead, Dumfries and Galloway, Scotland, UK