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Ceruleite

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Formula:
Cu2Al7(AsO4)4(OH)13 · 11.5H2O
System:
Triclinic
Colour:
Turquoise-blue.
Name:
From the Latin caeruleus, for "sky-blue" in allusion to its common colour.
Incorrect spelling is céruléite (Burke, 2008).

Classification of Ceruleite

Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
8.DE.25

8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
E : With only medium-sized cations, (OH, etc.):RO4 = 3:1
42.13.6.1

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
13 : Miscellaneous
20.1.14

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

Physical Properties of Ceruleite

Colour:
Turquoise-blue.
Density:
2.803 g/cm3 (Measured)    

Crystallography of Ceruleite

Crystal System:
Triclinic
Morphology:
Massive, compact and clay-like. Composed of extremely minute rod-like crystals.
X-Ray Powder Diffraction Data:
d-spacingIntensity
7.296 (75)
5.926 (70)
5.650 (l00)
4.877 (50)
4.760 (70)
3.545 (60)
3.235 (50)
2.984 (50)
2.650 (60)

Optical Data of Ceruleite

Type:
Biaxial
Dispersion:
r < v weak

Chemical Properties of Ceruleite

Formula:
Cu2Al7(AsO4)4(OH)13 · 11.5H2O
Essential elements:
All elements listed in formula:

Relationship of Ceruleite to other Species

8.DE.05SenegaliteAl2(PO4)(OH)(OH)2 · H2O
8.DE.10FluelliteAl2(PO4)F2(OH) · 7H2O
8.DE.15BulachiteAl2(AsO4)(OH)3 · 3H2O
8.DE.20ZapataliteCu3Al4(PO4)3(OH)9 · 4H2O
8.DE.35AldermaniteMg5Al12(PO4)8(OH)22 · 32H2O
8.DE.40JuanitaiteBi(Cu,Ca,Fe)10(AsO4)4(OH)11 · 2H2O
8.DE.45IangreyiteCa2Al7(PO4)2(PO3OH)2(OH,F)15 · 8H2O
20.1.1LammeriteCu3(AsO4)2
20.1.2OliveniteCu2(AsO4)(OH)
20.1.3ClinoclaseCu3(AsO4)(OH)3
20.1.4CornwalliteCu5(AsO4)2(OH)4
20.1.5CornubiteCu5(AsO4)2(OH)4
20.1.6Chlorotile (of Frenzel)
20.1.7GeminiteCu(HAsO4) · H2O
20.1.8EuchroiteCu2(AsO4)(OH) · 3H2O
20.1.9StrashimiriteCu8(AsO4)4(OH)4 · 5H2O
20.1.10ArhbariteCu2Mg(AsO4)(OH)3
20.1.11LindackeriteCuCu4(AsO4)2(HAsO4)2 · 8-9H2O
20.1.12ConichalciteCaCu(AsO4)(OH)
20.1.13LiroconiteCu2Al(AsO4)(OH)4 · 4H2O
20.1.15ChenevixiteCu2Fe23+(AsO4)2(OH)4
20.1.16ArthuriteCuFe23+(AsO4)2(OH)2 · 4H2O

Other Names for Ceruleite

Name in Other Languages:
Simplified Chinese:块砷铝铜矿
Spanish:Ceruléita

Other Information

Other Information:
Readily soluble in acids.
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 Ceruleite

Reference List:
Dufet, M. H. (1900): Sur une nouvelle espèce minérale, la céruléite. Bulletin de la Société française de Minéralogie 23, 147-150. (as Céruléite)

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. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 927-928.

Schmetzer, K., Berdesinski, W., Bank, H., Kroužek E. (1976): Neue Untersuchungen an Ceruleit. Neues Jahrbuch für Mineralogie, Monatshefte, 1976, 418-425.

American Mineralogist (1987): 62: 598.

Burke, E. A. J. (2008): Tidying up Mineral Names: An IMA scheme for Suffixes, Hyphens and Diacritical Marks. Mineralogical Record, 39, 131-135.

Internet Links for Ceruleite

Specimens:
The following Ceruleite specimens are currently listed for sale on minfind.com.

Localities for Ceruleite

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
 
  • Western Australia
    • Ashburton Shire
[MinRec 24:203]
Mineralogical Record 24,203-216,218.
Chile
 
  • Antofagasta Region
    • Antofagasta Province
      • Santa Catalina
No reference listed
maurizio dini collection - quantitative analysis
Dufet (1900) Bulletin de la Société française de Minéralogie: 23: 147 (as Céruléite); 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. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 928..
  • Tarapacá Region
    • El Tamarugal Province
      • Collahuasi district
A.Molina & M. Dini collections
France
 
  • Provence-Alpes-Côte d'Azur
    • Var
      • Le Pradet
[UKJMM 2:11-15 "Cap Garonne Secondary Copper and Lead - W.R. van den Berg"]
Portugal
 
  • Évora District
    • Estremoz
      • Glória
Identified by Christian Rewitzer (unknow method).
South Africa
 
  • Limpopo Province
    • Sekhukhune District
      • Marble Hall
        • Stavoren - Mutue tin field
Rick Turner
UK
 
  • England
    • Cornwall
      • Camborne - Redruth - St Day District
        • Carharrack
          • West Clifford United Mines
T Hardman Collection (visual identification)
        • Gwennap
          • Cusgarne
No reference listed
          • St Day United Mines (Poldice Mines)
[Embrey & Symes, 1987, 93 - "Minerals of Cornwall and Devon"]; Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Lapis 11(2), 38 (1986)
        • Lanner
      • Mount's Bay District
        • St Hilary
Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
USA
 
  • Utah
    • Tooele Co.
      • Deep Creek Mts
        • Gold Hill District (Clifton District)
          • Gold Hill
Specimen acquired from SCMS. Probably collected by Joe Marty.
Mineral and/or Locality  
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