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Camérolaite

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Formula:
Cu6Al3(OH)18(H2O)2[Sb(OH)6](SO4)
Originally assumed to be Cu4Al2(HSbO4,SO4)(CO3)(OH)10.2H2O
System:
Triclinic
Colour:
Blue-green
Name:
Named in honor of Michel Camerola, French mineral collector.
Cyanotrichite Group.
Closely related to carbonatecyanotrichite, less so to cyanotrichite.

The Sb:S ratio appears to be variable (Walenta, 1995). Type camerolaite has S:Sb = 1:1.44; material from the Clara mine has 1:0.64 (Walenta, 1995), although both have nearly identical X-ray powder diffraction patterns; the refractive indices of the Clara material are lower, however, due to the lower Sb content.



Classification of Camérolaite

Approved
Approval Year:
1990
7.DE.75

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
E : With only medium-sized cations; unclassified
44.3.11.1

44 : ANTIMONATES
3 : Miscellaneous
12.2.24

12 : Carbonates with other anions
2 : Carbonates with sulphate

Type Occurrence of Camérolaite

General Appearance of Type Material:
Camerolaite forms tufts and radiating fibrous aggregates (0.5-2mm) of acicular crystals
Place of Conservation of Type Material:
Mineralogy Department of the Natural History Museum, Geneva, Switzerland.
Associated Minerals at Type Locality:

Physical Properties of Camérolaite

Silky
Diaphaneity (Transparency):
Transparent
Colour:
Blue-green
Streak:
light green
Tenacity:
Brittle
Cleavage:
Distinct/Good
{100} and {001}
Fracture:
Fibrous
Density:
3.1(1) g/cm3 (Measured)    3.09 g/cm3 (Calculated)
Comment:
Calculated for idealized formula

Crystallography of Camérolaite

Crystal System:
Triclinic
Class (H-M):
1 - Pedial
Space Group:
P1
Cell Parameters:
a = 6.3310(13) Å, b = 2.9130(6) Å, c = 10.727(2) Å
α = 93.77(2)°, β = 96.34(3)°, γ = 79.03(3)°
Ratio:
a:b:c = 2.173 : 1 : 3.682
Unit Cell Volume:
V 192.82 ų
Z:
1
Morphology:
Acicular, fibrous, micaceous.
Comment:
Pseudomonoclinic. May be described with a C-centred triclinic cell with a = 12.441(3), b = 2.9130(6), c = 10.727(2) Å, α = 93.77(3), β = 95.57(3), γ = 92.32(3)° (C1, Z = 0.666).Originally assumed cell: a = 10.76, b = 2.90, c = 12.52 Å, beta = 95.61°.
X-Ray Powder Diffraction Data:
d-spacingIntensity
5.62 (50)
5.160 (90)
4.276 (100)
3.565 (40)
2.380 (35)
2.326 (35)

Optical Data of Camérolaite

Type:
Biaxial (+)
RI values:
nα = 1.626 nβ = 1.646 nγ = 1.682
2V:
Measured: 75° to 77°, Calculated: 76°
Max Birefringence:
δ = 0.056
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
weak
Pleochroism:
Visible
Comments:
α = colorless, β = pale-green, γ = blue-green.

Chemical Properties of Camérolaite

Formula:
Cu6Al3(OH)18(H2O)2[Sb(OH)6](SO4)

Originally assumed to be Cu4Al2(HSbO4,SO4)(CO3)(OH)10.2H2O
All elements listed in formula:

Relationship of Camérolaite to other Species

Structurally related to group(s):
Cyanotrichite GroupA group of closely related, monoclinic Cu-Al-sulphates.
7.DE.05MangazeiteAl2(SO4)(OH)4 · 3H2O
7.DE.10CarbonatecyanotrichiteCu4Al2(CO3,SO4)(OH)12 · 2H2O
7.DE.10CyanotrichiteCu4Al2(SO4)(OH)12 · 2H2O
7.DE.10UKI-1975-(SO:AlCu)(Cu, Al, SO4, H2O)
7.DE.15SchwertmanniteFe163+(OH,SO4)12-13O16 · 10-12H2O
7.DE.20TlalociteCu10Zn6(Te6+O4)2(Te4+O3)(OH)25Cl · 27H2O
7.DE.25UtahiteCu5Zn3(TeO4)4(OH)8 · 7H2O
7.DE.35CoquanditeSb6+xO8+x(SO4)(OH)x(H2O)1- x (x = 0.3)
7.DE.40OsakaiteZn4(SO4)(OH)6 · 5H2O
7.DE.45WilcoxiteMgAl(SO4)2F · 17H2O
7.DE.50Stanleyite(V4+O)(SO4) · 6H2O
7.DE.55McalpineiteCu3(Te6+O6)
7.DE.60HydrobasaluminiteAl4(SO4)(OH)10 · 12-36H2O
7.DE.62VolaschioiteFe4(SO4)O2(OH)6 · 2H2O
7.DE.65ZaheriteAl12(SO4)5(OH)26 · 20H2O
7.DE.70LautenthalitePbCu4(SO4)2(OH)6 · 3H2O
12.2.1BurkeiteNa6(CO3)(SO4)2
12.2.2HanksiteNa22K(SO4)9(CO3)2Cl
12.2.3TychiteNa6Mg2(CO3)4(SO4)
12.2.4MotukoreaiteMg6Al3(OH)18[Na(H2O)6][SO4]2 · 6H2O
12.2.5FerrotychiteNa6(Fe,Mn,Mg)2(CO3)4(SO4)
12.2.6NakauriiteCu8(SO4)4(CO3)(OH)6 · 48H2O
12.2.7CarbonatecyanotrichiteCu4Al2(CO3,SO4)(OH)12 · 2H2O
12.2.8RapidcreekiteCa2(SO4)(CO3) · 4H2O
12.2.9TatarskiteCa6Mg2(SO4)2(CO3)2(OH)4Cl4 · 7H2O
12.2.10Schulenbergite(Cu,Zn)7(SO4)2(OH)10 · 3H2O
12.2.11LeadhillitePb4(CO3)2(SO4)(OH)2
12.2.12MacphersonitePb4(CO3)2(SO4)(OH)2
12.2.13SusannitePb4(CO3)2(SO4)(OH)2
12.2.14WherryitePb7Cu2(SO4)4(SiO4)2(OH)2
12.2.15CaledonitePb5Cu2(SO4)3(CO3)(OH)6
12.2.16NasledovitePbMn3Al4(CO3)4(SO4)O5 · 5H2O
12.2.17JouravskiteCa3Mn4+(SO4)(CO3)(OH)6 · 12H2O
12.2.18SchröckingeriteNaCa3(UO2)(CO3)3(SO4)F · 10H2O
12.2.19ManganotychiteNa6Mn2(CO3)4(SO4)
12.2.20HauckiteFe33+(Mg,Mn2+)24Zn18(SO4)4(CO3)2(OH)81
12.2.21ParaotwayiteNi(OH)2-x(SO4,CO3)0.5x
12.2.22Carrboydite[(Ni1-xAlx)(OH)2][SO4]x/2 · nH2O
12.2.23Mountkeithite[(Mg1-xFex3+)(OH)2][SO4]x/2 · nH2O

Other Names for Camérolaite

Name in Other Languages:
German:Camerolait
Spanish:Camerolaita

Other Information

Other Information:
Dissolves in 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.

References for Camérolaite

Reference List:
Sarp, H. & Perroud, P. (1991): Camerolaite, Cu4Al2[HSbO4,SO4](OH)10(CO3).2H2O, a new mineral from Cap Garonne mine, Var, France. Neues Jahrbuch für Mineralogie, Monatshefte 1991, 481-486.

Cuchet, S. (1995): Seconde occurrence de camérolaïte, Cu4Al2[(HSbO4,SO4)](OH)10(CO3)*2H2O, Val d'Anniviers, Valais, Suisse. Schweiz. Miner. Petrogr. Mitt. 75, 283-284.

Walenta, K. (1995): Camerolait aus dem Schwarzwald. Aufschluss 46, 210-214. (in German)

New Mins. (1997), New Minerals 1990-1994.

Hager, S. L., Leverett, P. & Williams, P. A. (2009): Possible structural and chemical relationships in the cyanotrichite group. Canadian Mineralogist 47, 635-648.

Mills, S.J., Christy, A.G., Schnyder, C., Favreau, G., Price, J.R. (2015): The crystal structure of camerolaite and structural variation in the cyanotrichite family of merotypes. Mineralogical Magazine, 78, 1527-1552.

Internet Links for Camérolaite

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http://www.mindat.org/min-872.html
Please feel free to link to this page.

Localities for Camérolaite

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.
Austria
 
  • Carinthia
    • Karawanken
      • Finkenstein
        • Mallestiger Mittagskogel
Neuhold, F., Kolitsch, U. & Brandstätter, F. (2010): 1619) Camerolait vom Revier Neufinkenstein-Grabanz am Mallestiger Mittagskogel, Finkenstein, Karawanken, Kärnten. P. 204 in Niedermayr et al. (2010): Neue Mineralfunde aus Österreich LIX. Carinthia II, 200./120., 199-260.
France
 
  • Languedoc-Roussillon
    • Aude
      • Padern
Favreau G., Berbain C., Meisser N. (2003), Cyanophyllite et autres espèces rares de la mine du Tistoulet, Padern (Aude), Le Cahier des Micromonteurs, n°4, pp: 17-23
    • Hérault
Handbook of Mineralogy
  • Provence-Alpes-Côte d'Azur
    • Var
      • Le Pradet
Neues Jahrb.Min.,Mh.(1991) 481-486
Germany
 
  • Baden-Württemberg
    • Black Forest
      • Freudenstadt
Walenta, K. (1985): Neufunde aus dem Schwarzwald. Lapis, 10 (11), 26-35 (as "cyanotrichite-like mineral"); Walenta, K. (1995): Camerolait aus dem Schwarzwald. Aufschluss 46, 210-214; Wittern: "Mineralfundorte in Deutschland", Schweizerbart (Stuttgart), 2001
      • Wolfach
        • Oberwolfach
          • Rankach valley
WALENTA, K. (1995): Neue Mineralfunde von der Grube Clara. 6. Folge, 1. Teil. - Lapis 20 (5), 33-38.
Italy
 
  • Friuli-Venezia Giulia
    • Udine Province
      • Forni Avoltri
Ciriotti, M.E., Möckel, S., Blaβ, G., Bortolozzi, G. (2006). Cualstibite: ritrovamenti italiani. MICRO (UK report), 2006, 19-24.
Slovakia
 
  • Banská Bystrica Region
    • Banská Bystrica Co.
      • Ľubietová (Libetbánya; Libethen)
Pauliš,P.,Ďuďa,R.,2002: Nejzajímavejší mineralogická naletište Slovenska. Kuttna,K.Hora, 136p
      • Špania Dolina (Herrengrund)
P. Andresen collection, obtained from A. Robbemond, 2004.
Spain
 
  • Castile and Leon
    • Zamora
      • Losacino
        • Vide de Alba
-Calvo, M. (2014) "Minerales y Minas de España", Vol. VI (Sulfatos (seleniatos, teluratos),cromatos,molibdatos y wolframatos). Escuela Técnica Superior de Ingenieros de Minas. Madrid
Switzerland
 
  • Wallis (Valais)
    • Anniviers Valley
      • Saint-Luc
CUCHET, S. (1995): Seconde occurrence de camérolaïte, Cu4Al2[(HSbO4,SO4)](OH)10(CO3)*2H2O, Val d'Anniviers, Valais, Suisse. Schweiz. Miner. Petrogr. Mitt. 75, 283-284.; Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Verlag Wepf & Co. (Basel), p. 100; Ansermet, S. (2012): Mines et minéraux du Valais - II. Anniviers et Tourtemagne. With contributions by N. Meisser, Ed. Porte-plumes (Ayer)
Ansermet, S. (2012): Mines et minéraux du Valais - II. Anniviers et Tourtemagne. With contributions by N. Meisser, Ed. Porte-plumes (Ayer)
Mineral and/or Locality  
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