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Ceruleite

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Formula:
Cu
 
2
Al
 
7
(AsO
 
4
)
 
4
(OH)
 
13
· 11.5H
 
2
O
System:TriclinicColour: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

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:7/D.20-20
Nickel-Strunz 10th (pending) edition ID: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
Dana 8th edition ID:42.13.6.1

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
13 : Miscellaneous
Hey's CIM Ref.:20.1.14

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

Type Locality:Emma Luisa Mine, Guanaco (Huanaco), Santa Catalina, Antofagasta Province, Antofagasta Region, Chile

Physical Properties of Ceruleite

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

Crystallography of Ceruleite

Crystal System:Triclinic
Morphology:Massive, compact and clay-like. Composed of extremely minute rod-like crystals.
X-Ray Powder Diffraction:
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:
Cu
 
2
Al
 
7
(AsO
 
4
)
 
4
(OH)
 
13
· 11.5H
 
2
O
Simplified for copy/paste:Cu2Al7(AsO4)4(OH)13·11.5H2O
Essential elements:Al, As, Cu, H, O
All elements listed in formula:Al, As, Cu, H, O

Relationship of Ceruleite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
8.DE.05Senegalite
Al
 
2
(PO
 
4
)(OH)(OH)
 
2
· H
 
2
O
8.DE.10Fluellite
Al
 
2
(PO
 
4
)F
 
2
(OH) · 7H
 
2
O
8.DE.15Bulachite
Al
 
2
(AsO
 
4
)(OH)
 
3
· 3H
 
2
O
8.DE.20Zapatalite
Cu
 
3
Al
 
4
(PO
 
4
)
 
3
(OH)
 
9
· 4H
 
2
O
8.DE.35Aldermanite
Mg
 
5
Al
 
12
(PO
 
4
)
 
8
(OH)
 
22
· 32H
 
2
O
8.DE.40Juanitaite
Bi(Cu,Ca,Fe)
 
10
(AsO
 
4
)
 
4
(OH)
 
11
· 2H
 
2
O
8.DE.45Iangreyite
Ca
 
2
Al
 
7
(PO
 
4
)
 
2
(PO
 
3
OH)
 
2
(OH,F)
 
15
· 8H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
20.1.1Lammerite
Cu
 
3
(AsO
 
4
)
 
2
20.1.2Olivenite
Cu
 
2
(AsO
 
4
)(OH)
20.1.3Clinoclase
Cu
 
3
(AsO
 
4
)(OH)
 
3
20.1.4Cornwallite
Cu
 
5
(AsO
 
4
)
 
2
(OH)
 
4
20.1.5Cornubite
Cu
 
5
(AsO
 
4
)
 
2
(OH)
 
4
20.1.6Chlorotile (of Frenzel)
20.1.7Geminite
Cu(HAsO
 
4
) · H
 
2
O
20.1.8Euchroite
Cu
 
2
(AsO
 
4
)(OH) · 3H
 
2
O
20.1.9Strashimirite
Cu
 
8
(AsO
 
4
)
 
4
(OH)
 
4
· 5H
 
2
O
20.1.10Arhbarite
Cu
 
2
Mg(AsO
 
4
)(OH)
 
3
20.1.11Lindackerite
CuCu
 
4
(AsO
 
4
)
 
2
(HAsO
 
4
)
 
2
· 8-9H
 
2
O
20.1.12Conichalcite
CaCu(AsO
 
4
)(OH)
20.1.13Liroconite
Cu
 
2
Al(AsO
 
4
)(OH)
 
4
· 4H
 
2
O
20.1.15Chenevixite
Cu
 
2
Fe
3+
2
(AsO
 
4
)
 
2
(OH)
 
4
20.1.16Arthurite
CuFe
3+
2
(AsO
 
4
,PO
 
4
,SO
 
4
)
 
2
(OH,O)
 
2
· 4H
 
2
O

Other Names for Ceruleite

Synonyms:
CéruléiteCoerulite
Other Languages:
German:Ceruléit
Céruleit
Simplified Chinese:块砷铝铜矿
Spanish:Ceruléita

Other Information

Other Information:Readily soluble in acids.
Health Warning: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

Search Engines:
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  • External Links:
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  • Look for Ceruleite on Athena Mineralogy
  • Look for Ceruleite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Mineral Dealers:
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  • Search for Ceruleite on Well-Arranged Molecules
  • Wilensky Fine Minerals
  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
  • Ceruleite specimens for sale - minfind.com
  • Fabre Minerals - search for Ceruleite specimens
  • Buy minerals from YourMineralCollection
  • Lapis Mineral Magazin
  • Localities for Ceruleite

    The 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. ? 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
    Christian Rewitzer analyzes
    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
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