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Cornubite

A valid IMA mineral species
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About CornubiteHide

05405970017058827112531.jpg
Flag of Cornwall, England
Formula:
Cu5(AsO4)2(OH)4
Colour:
Apple green, light to dark green
Lustre:
Sub-Vitreous, Resinous, Waxy, Greasy
Hardness:
4
Specific Gravity:
4.64
Crystal System:
Triclinic
Name:
Named in 1959 by Gordon Frank Claringbull, Max H. Hey and Arthur Russell for Cornubia, the medieval Latin name for Cornwall.
Dimorph of:
The triclinic dimorph of Cornwallite.

There are weak hydrogen bonds in the structure. Raman polarizability is dependent on the orientation of arsenate tetrahedra, changing most along the Y axis (Janeczek et al., 2016).


Unique IdentifiersHide

Mindat ID:
1132
Long-form identifier:
mindat:1:1:1132:3
GUID
(UUID V4):
68b116b9-c5a0-4781-8433-4b24c138df0c

IMA Classification of CornubiteHide

Classification of CornubiteHide

8.BD.30

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
D : With only medium-sized cations, (OH, etc.):RO4= 2:1
41.4.2.1

41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
4 : (AB)5(XO4)2Zq
20.1.5

20 : Arsenates (also arsenates with phosphate, but without other anions)
1 : Arsenates of Cu

Mineral SymbolsHide

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

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

Pronunciation of CornubiteHide

Pronunciation:
PlayRecorded byCountry
Jolyon RalphUnited Kingdom

Physical Properties of CornubiteHide

Sub-Vitreous, Resinous, Waxy, Greasy
Transparency:
Transparent, Translucent
Comment:
Rarely bright in luster
Colour:
Apple green, light to dark green
Streak:
Pale green
Hardness:
Tenacity:
Brittle
Cleavage:
Distinct/Good
Two perpendicular to {211}, intersecting about 70°.
Fracture:
Irregular/Uneven, Sub-Conchoidal
Density:
4.64 g/cm3 (Measured)    4.85 g/cm3 (Calculated)
Comment:
Measured density on fibrous material.

Optical Data of CornubiteHide

Type:
Biaxial (-)
RI values:
nα = 1.870 nγ = 1.900
Birefringence:
0.03
Max Birefringence:
δ = 0.030
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
r > v
Pleochroism:
Non-pleochroic
Comments:
2V very large, beta N.D.

Chemistry of CornubiteHide

Mindat Formula:
Cu5(AsO4)2(OH)4

Crystallography of CornubiteHide

Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Setting:
P1
Cell Parameters:
a = 6.121(1) Å, b = 6.251(1) Å, c = 6.790 Å
α = 92.93(1)°, β = 111.30°, γ = 107.47(1)°
Ratio:
a:b:c = 0.979 : 1 : 1.086
Unit Cell V:
227.11 ų (Calculated from Unit Cell)
Z:
1
Morphology:
Rarely in crystals in tabular aggregates, usually botyroidal, also globular porcelaneous masses, fibrous.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0012147CornubiteTillmanns E, Hofmeister W, Petitjean K (1985) Cornubite, Cu5(AsO4)2(OH)4, first occurence of single crystals, mineralogical description and crystal structure Bulletin of the Geological Society of Finland 57 119-1271985Reichenbach, Odenwald near Bensheim, Hessen, West Germany0293
0012652CornubiteSieber N H W, Hofmeister W, Tillmanns E, Abraham K (1984) Neue mineraldaten fur kupferphosphate und -arsenate von Reichenbach/Odw Fortschritte der Mineralogie 62 231-2321984Reichenbach, Germany0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
4.72 Å(100)
3.49 Å(80)
2.868 Å(70)
2.688 Å(90)
2.562 Å(100)
2.489 Å(100)
2.303 Å(70)

Geological EnvironmentHide

Paragenetic Mode(s):
Geological Setting:
Oxidation zone of copper deposits.

Type Occurrence of CornubiteHide

General Appearance of Type Material:
Apple-green patches of fibrous botryoids.
Place of Conservation of Type Material:
Natural History Museum, London 1964R, 8650.
Geological Setting of Type Material:
Copper-Tin-Silver bearing hydrothermal veins.
Associated Minerals at Type Locality:
Reference:
Claringbull, G.F., Hey, M.H., Davis, R.J. (1959) Cornubite, a new mineral dimorphous with cornwallite. Mineralogical Magazine: 32: 1-5.

Synonyms of CornubiteHide

Other Language Names for CornubiteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
59 photos of Cornubite associated with OliveniteCu2(AsO4)(OH)
46 photos of Cornubite associated with AzuriteCu3(CO3)2(OH)2
45 photos of Cornubite associated with CornwalliteCu5(AsO4)2(OH)4
33 photos of Cornubite associated with MalachiteCu2(CO3)(OH)2
17 photos of Cornubite associated with ClinoclaseCu3(AsO4)(OH)3
13 photos of Cornubite associated with QuartzSiO2
12 photos of Cornubite associated with ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
12 photos of Cornubite associated with ChalcophylliteCu18Al2(AsO4)4(SO4)3(OH)24 · 36H2O
11 photos of Cornubite associated with ParnauiteCu9(AsO4)2(SO4)(OH)10 · 7H2O
8 photos of Cornubite associated with ConichalciteCaCu(AsO4)(OH)

Related Minerals - Strunz-mindat GroupingHide

8.BD.AntipoviteCu5O2(PO4)2Tric. 1 : P1
8.BD.05CornwalliteCu5(AsO4)2(OH)4Mon. 2/m : P21/b
8.BD.05PseudomalachiteCu5(PO4)2(OH)4Mon. 2/m : P21/b
8.BD.05ReichenbachiteCu5(PO4)2(OH)4Mon. 2/m
8.BD.10ArsenoclasiteMn2+5(AsO4)2(OH)4Orth. 2 2 2 : P21 21 21
8.BD.10GatehouseiteMn2+5(PO4)2(OH)4Orth. 2 2 2 : P21 21 21
8.BD.15ParweliteMn10Sb2As2Si2O24Mon. m : Bb
8.BD.20ReppiaiteMn2+5(VO4)2(OH)4Mon. 2/m : B2/m
8.BD.25LudjibaiteCu5(PO4)2(OH)4Tric. 1 : P1

Fluorescence of CornubiteHide

Not Fluorescent

Other InformationHide

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 CornubiteHide

References for CornubiteHide

Reference List:

Localities for CornubiteHide

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.
Argentina
 
  • Neuquén Province
    • Picunches Department
Brodtkorb (2006)
Australia
 
  • South Australia
    • Flinders Ranges
      • North Flinders Ranges
        • Arkaroola Region (Arkaroola Wilderness Sanctuary; Arkaroola Station)
          • Yudnamutana District
S Sorrell (pers comm)
  • Western Australia
    • Ashburton Shire
Nickel et al. (1993)
Min. Record 24 (1993)
Mineralogical Record 24
    • East Pilbara Shire
      • Rudall River District
Downes et al. (2006)
Austria
 
  • Salzburg
    • Zell am See District
      • Leogang
        • Hütten
          • Schwarzleograben
            • Schwarzleo mining district
Poeverlein (2008)
  • Tyrol
    • Kufstein District
      • Brixlegg
Lapis 19 (7/8) +1 other reference
Brazil
 
  • Bahia
    • Rio do Pires
Menezes (n.d.)
sergio varvello collectino
Bulgaria
 
  • Sofia Province
    • Svoge Municipality
      • Bov
Minceva-Stefanova (1993)
      • Gara Lakatnik
Minceva-Stefanova (2001)
Canada
 
  • Québec
    • Nord-du-Québec
Nadeau et al. (2015)
Chile
 
  • Antofagasta
    • Antofagasta Province
      • Taltal
Samples analysed by Dr. Jochen Schluter +1 other reference
  • Coquimbo
    • Elqui Province
      • La Serena
        • Arqueros Ag mining district
          • Marqueza
maurizio dini collection - confirmed by ...
China
 
  • Guangxi
    • Baise
      • Debao Co.
Lairen Lai and Yi Li (1989) +2 other references
  • Yunnan
    • Kunming
      • Dongchuan District
Boutry Collection
DR Congo
 
  • Haut-Katanga
    • Kambove Territory
Lapis (1992) +1 other reference
France
 
  • Grand Est
    • Bas-Rhin
      • Sélestat-Erstein
Wittern et al. (Cologne)
    • Haut-Rhin
      • Colmar-Ribeauvillé
        • Sainte-Marie-aux-Mines
P&T N°23-24 et al. (Haut-Rhin)
            • Sankt Jakob vein
Wittern
            • Sankt Johann vein
Wittern
Wittern
        • Zimmerbach
Wittern
    • Vosges
      • Épinal
        • Le Val-d'Ajol
          • Faymont
Escande et al. (1973) +6 other references
Escande et al. (1973) +6 other references
  • Nouvelle-Aquitaine
    • Haute-Vienne
      • Bellac
        • Vaulry
          • Vaulry Mines
Patrice Queneau Collection
  • Occitanie
    • Aude
      • Carcassonne
        • Salsigne
Forner et al. (1997)
    • Aveyron
      • Villefranche-de-Rouergue
        • Monteils
Favreau et al. (2010)
    • Hérault
      • Lodève
        • Le Puech
"Giorgio Bortolozzi (visual identification)
    • Tarn-et-Garonne
      • Montauban
        • Castanet
Patrice Queneau Collection
    • Tarn
      • Albi
François Garric collection
  • Provence-Alpes-Côte d'Azur
    • Alpes-Maritimes
      • Nice
        • Daluis
Sarp et al. (OH) +2 other references
    • Var
      • Toulon
        • Le Pradet
Jean-Marie Claude collection +1 other reference
CLAUDE jm. Trouvaille et collection ...
CLAUDE Jean-Marie trouvaille et ...
Germany
 
  • Baden-Württemberg
    • Freiburg Region
      • Ortenaukreis
        • Gengenbach
          • Gengenbach
Wittern (1995)
        • Hornberg
          • Niederwasser
Schrenk (2000)
        • Oberwolfach
Walenta (1992)
        • Zell am Harmersbach
          • Nordrach
            • Schottenhöfe
      • Rottweil
        • Schenkenzell
          • Wittichen
            • Burgfelsen
            • Heubach Valley
Markl (2016)
            • Wüstenbächle
Aufschluss 1981 (5)
    • Karlsruhe Region
      • Calw
Anthony et al. (2016)
      • Freudenstadt
Walenta (1992)
Wittern (2001)
  • Hesse
    • Darmstadt
      • Bergstraße
        • Lautertal (Odenwald)
          • Reichenbach
            • Borstein
Tillmanns et al. (1985)
            • Hohenstein
Lapis (10)
    • Giessen Region
      • Limburg-Weilburg
        • Weinbach
Legner et al. (2022)
    • Kassel Region
      • Hersfeld-Rotenburg
        • Nentershausen
          • Süß
            • Richelsdorf Smelter
Weiß (1990)
  • Lower Saxony
    • Göttingen District
      • Bad Lauterberg
Koch (2008)
  • North Rhine-Westphalia
    • Arnsberg
      • Siegen-Wittgenstein
        • Siegen
          • Eiserfeld
Henrich (2008)
          • Gosenbach
Wittern (2001)
          • Niederschelden
Lapis (12)
    • Cologne
      • Rheinisch-Bergischer Kreis
        • Rösrath
          • Hoffnungsthal
Mineralienwelt 2/1997
  • Rhineland-Palatinate
    • Altenkirchen
      • Betzdorf-Gebhardshain
        • Kausen
Wittern (2001)
    • Donnersbergkreis
      • Winnweiler
        • Imsbach
Wittern (2001)
Wittern (2001)
  • Saxony
    • Erzgebirgskreis
      • Marienberg
        • Lauta
Daniel Lunau Collection
Greece
 
  • Attica
    • East Attica
      • Lavreotiki
        • Lavrion Mining District
          • Agios Konstantinos (Kamariza)
            • Kamariza Mines (Kamareza Mines)
Nicholas Barbis collection +2 other references
Hungary
 
  • Borsod-Abaúj-Zemplén County
    • Kazincbarcika District
      • Rudabánya
Szakáll: Minerals of Rudabánya
Szakáll: Minerals of Rudabánya
Szakáll: Minerals of Rudabánya
  • Fejér County
    • Gárdony District
      • Nadap
GEODA 2004
      • Sukoró
Szakáll-Gatter-Szendrei: Mineral ...
    • Székesfehérvár District
      • Lovasberény
  • Heves County
    • Parádfürdő
Italy
 
  • Liguria
    • Genoa
Pagano et al. (2001)
Redazionale (2005)
        • Reppia
Redazione (2005)
        • Statale
Marchesini M. (1999)
    • La Spezia Province
      • Rocchetta di Vara
Dr. Uwe Kolitsch (EDS+XRD)
  • Piedmont
    • Verbano-Cusio-Ossola Province
      • Baceno
        • Devero Alp
Guastoni et al. (2006) +2 other references
  • Sardinia
    • South Sardinia Province
      • Gonnosfanadiga
        • Fenugu Sibiri Mine
Brizzi et al. (1994)
      • Muravera
Stara et al. (1993)
  • Tuscany
    • Livorno Province
      • Livorno
        • Valle Benedetta
LIBVRNA N°2 September 2021
    • Massa-Carrara Province
Guelfi et al. (1987) +2 other references
        • Colonnata quarrying basin
Orlandi et al. (1994)
Japan
 
  • Miyazaki Prefecture
    • Nishiusuki District
      • Takachiho
pers. comm. Kotaro Watanabe +1 other reference
  • Nara Prefecture
    • Gose City
Ohori and Kobayashi (1996)
  • Oita Prefecture
    • Saiki City
Okamoto collection (curated at the Geological Survey museum, Japan)
  • Yamanashi Prefecture
    • Kinpuzan mining district
      • Hokuto City
        • Sutama-cho
          • Masutomi
Sakurai (1970)
Morocco
 
  • Drâa-Tafilalet Region
    • Ouarzazate Province
      • Amerzgane Cercle
        • Ouisselsate Caïdat
Favreau et al. (2006)
Poland
 
  • Lower Silesian Voivodeship
    • Polkowice County
      • Gmina Polkowice
        • Komorniki
Łukasz Kruszewski PXRD & EPMA data (2019)
  • Świętokrzyskie Voivodeship
    • Kielce County
      • Gmina Chęciny
Bzowska et al. (2003)
Portugal
 
  • Beja
    • Almodôvar
      • Santa Cruz
        • Barrigão Mine
Pedro Alves collection and analytical ...
Slovakia
 
  • Banská Bystrica Region
    • Banská Bystrica District
      • Ľubietová
Martin Števko
Kodě +2 other references
      • Poniky
Hyršl et al. (1984)
  • Košice Region
    • Gelnica District
      • Gelnica
Sejkora J.
Spain
 
  • Catalonia
    • Tarragona
      • Baix Camp
        • Capafonts
Joan Abella i Creus (Joanabellacreus@gmail.com)
      • Priorat
        • Cornudella de Montsant
Joan Abella i Creus (Joanabellacreus@gmail.com)
  • Murcia
    • Mazarrón
      • Pastrana
Calvo Rebollar (2015)
Switzerland
 
  • Glarus
    • Glarus Nord
  • Valais
    • Entremont
      • Orsières
Cuchet et al. (2012)
    • Goms
      • Binn
Stalder et al. (1998)
UK
 
  • England
    • Cornwall
      • Calstock
        • Gunnislake
Golley et al. (1995)
      • Gwennap
        • St Day
          • Clifford Amalgamated Mines
Anthony et al. (2016)
      • Gwinear-Gwithian
        • Fraddam
Claringbull et al. (1959) +1 other reference
      • Linkinhorne
        • Minions
Golley et al. (1995) +1 other reference
      • St Day
Golley et al. (1995) +1 other reference
Anthony et al. (2016)
      • St Hilary
Golley et al. (1995)
      • St Just
        • Botallack
Golley et al. (1995)
Golley et al. (1995)
    • Cumbria
      • Allerdale
        • Caldbeck
          • Potts Gill
Claringbull et al. (1959) +2 other references
Stanley et al. (1991)
    • Devon
      • West Devon
        • Gulworthy
Anthony et al. (2016)
          • Devon Great Consols
Collected Dec 2004
Collected Dec 2004
  • Scotland
    • Dumfries and Galloway
Braithwaite et al. (1990)
Day (1999)
      • Needle's Eye
Day (1999)
    • Shetland Islands
      • Mainland
Rushton (1972)
USA
 
  • Arizona
    • Santa Cruz County
Anthony et al. (1995)
      • Patagonia Mountains
        • Harshaw Mining District
          • Harshaw
            • Hardshell Gulch
Collection by Bruce J. Murphy 1982. ...
Williams (1977) +1 other reference
Anthony et al. (1995)
  • California
    • Mono County
      • Bodie Hills
        • Masonic Mining District
          • New York Hill
Kampf et al. (2018)
    • Plumas County
      • Last Chance Mining District
        • Adams Peak
Dunning et al. (2005)
  • Colorado
    • Moffat County
      • Skull Creek Mining District (Blue Mountain Mining District)
Eckel et al. (1997)
  • Nevada
    • Eureka County
      • Sulphur Spring Range
        • Alpha Mining District
          • Cougar Hill
Luetcke (n.d.)
    • Lyon County
      • Singatse Range
        • Yerington Mining District
          • Yerington
Castor et al. (2004)
    • Nye County
      • Lodi Hills
        • Lodi Mining District
          • Quartz Mountain camp
Rocks & Minerals (2010)
    • Pershing County
      • Antelope Mining District
Anthony et al. (2016) +1 other reference
Colection of Alex Earl
Jensen (1985)
  • New Mexico
    • Lincoln County
      • Red Cloud District
        • Gallinas Mountains
NMBMGMR Open-file Report - 532 +1 other reference
  • Pennsylvania
    • Lycoming County
      • Muncy
        • Lime Bluff
Mineral Notes & News et al. (Feb, 1974) +2 other references
  • Utah
    • Juab County
      • Tintic Mining District
        • Eureka
Roberts et al. (1997)
        • Mammoth
Collected by and in the collection of ...
    • Tooele County
      • Gold Hill Mining District (Clifton Mining District)
        • Gold Hill
Kokinos et al. (1993)
Min Rec 24:1 pp11-22
 
Mineral and/or Locality  
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