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Cesbronite

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Formula:
Cu2+Te6+O4(OH)4
Formula redefined 2017 (IMA 17-C).
Hardness:
3
Crystal System:
Orthorhombic
Name:
Named in 1974 by Sidney Arthur Williams in honor of Fabien P. Cesbron [1938 France - ], French mineralogist with the Bureau de Recherches Geologiques et Miniere, BRGM, Orleans. France.
Redefined in September 2017 as containing Te6+ not Te4+. The originally assumed formula was Cu5(Te4+O3)2(OH)6 · 2H2O.

Consequently its curent placement within the Strunz and Dana tables is now incorrect.




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Classification of CesbroniteHide

Approved
Notes:
Redefined by the IMA
Approval History:
Approved by IMA 1974.
Redefined by IMA 2017 (Proposal 17-C), as Cu2+Te6+O4(OH)4
4.JN.15

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates
N : Tellurites with additional anions, with H2O
Dana 7th ed.:
33.2.8.1
34.7.2.1

34 : SELENITES, TELLURITES AND SULFITES
7 : Hydrated Selenites, Tellurites and Sulfites containing Hydroxyl or Halogen
28.3.5

28 : Selenites, Selenates, Tellurites, and Tellurates
3 : Tellurites

Physical Properties of CesbroniteHide

Hardness:

Optical Data of CesbroniteHide

Type:
Biaxial (+)
RI values:
nα = 1.880 nβ = 1.928 nγ = 2.029
2V:
Measured: 72° , Calculated: 74°
Max Birefringence:
δ = 0.149
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
r > v

Chemical Properties of CesbroniteHide

Formula:
Cu2+Te6+O4(OH)4

Formula redefined 2017 (IMA 17-C).
IMA Formula:
Cu5(Te4+O3)2(OH)6 · 2H2O

Crystallography of CesbroniteHide

Crystal System:
Orthorhombic
Cell Parameters:
a = 8.62 Å, b = 11.87 Å, c = 5.87 Å
Ratio:
a:b:c = 0.726 : 1 : 0.495
Unit Cell V:
600.61 ų (Calculated from Unit Cell)

Type Occurrence of CesbroniteHide

Synonyms of CesbroniteHide

Other Language Names for CesbroniteHide

German:Cesbronit
Spanish:Cesbronita

Common AssociatesHide

Associated Minerals Based on Photo Data:
Quartz2 photos of Cesbronite associated with Quartz on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

4.JN.05SonoraiteFe3+(TeO3)(OH) · H2OMon.
4.JN.10PoughiteFe3+2(TeO3)2(SO4)(H2O)2 · H2OOrth.
4.JN.20EztlitePb2Fe3+6(Te4+O3)3(Te6+O6)(OH)10 · 8H2OMon.
4.JN.25OboyeriteH6(Pb,Ca)6(Te4+O3)3(Te6+O6)2 · 2H2OTric.
4.JN.30JuabiteCaCu10(TeO3)4(AsO4)4(OH)2 · 4H2OTric.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

28.3.1BalyakiniteCu(TeO3)Orth.
28.3.2RajiteCu(Te4+2O5)Mon. 2/m : P21/b
28.3.3GraemiteCu[TeO3] · H2OOrth. mmm (2/m 2/m 2/m) : Pmma
28.3.4TeineiteCu2+(Te4+O3) · 2H2OOrth. mmm (2/m 2/m 2/m)
28.3.6MroseiteCaTe4+(CO3)O2Orth. mmm (2/m 2/m 2/m) : Pbca
28.3.7QuetzalcoatliteZn6Cu3(TeO6)2(OH)6 · AgxPbyClx+2yTrig. 3m (3 2/m) : P3m1
28.3.8ZemanniteMg0.5ZnFe3+(Te4+O3)3 · 4.5H2OHex. 6/m : P63/m
28.3.9KinichiliteMg0.5Mn2+Fe3+(Te4+O3)3 · 4.5H2OHex. 6/m : P63/m
28.3.10Denningite(Mn2+,Ca,Zn)Te4+2O5Tet.
28.3.11SpiroffiteMn2+2Te4+3O8Mon. 2/m : B2/b
28.3.12WinstanleyiteTiTe4+3O8Iso. m3 (2/m 3) : Ia3
28.3.13FairbankitePb(TeO3)Tric.
28.3.14PlumbotelluritePb(TeO3)Orth.
28.3.15Choloalite(Cu,Sb)3(Pb,Ca)3(TeO3)6Cl
28.3.16SmirniteBi2Te4+O5Orth. mm2
28.3.17ChekhovichiteBi2Te4+4O11Mon. 2/m
28.3.18Cliffordite(UO2)Te4+3O7Iso. m3 (2/m 3) : Pa3
28.3.19Schmitterite(UO2)(TeO3)Orth.
28.3.20MoctezumitePb(UO2)(TeO3)2Mon.
28.3.21EmmonsiteFe3+2(TeO3)3 · 2H2OTric. 1 : P1
28.3.22BlakeiteFe3+2[TeO3]3 (?)
28.3.23MackayiteFe3+(Te4+2O5)(OH)Tet. 4/mmm (4/m 2/m 2/m) : I41/acd
28.3.24PoughiteFe3+2(TeO3)2(SO4)(H2O)2 · H2OOrth.
28.3.25SonoraiteFe3+(TeO3)(OH) · H2OMon.
28.3.26RodalquilariteFe2(TeO2OH)3(TeO3)ClTric. 1 : P1
28.3.27EztlitePb2Fe3+6(Te4+O3)3(Te6+O6)(OH)10 · 8H2OMon.
28.3.28KeystoneiteMg0.5Ni2+Fe3+(Te4+O3)3 · 4.5H2OHex.

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.

References for CesbroniteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
American Mineralogist: 64: 653.
Mineralogical Magazine: 39: 744-746.
Canadian Mineralogist: 34: 49-54, 55-59.

Internet Links for CesbroniteHide

Localities for CesbroniteHide

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 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Mexico (TL)
 
  • Sonora
    • Mun. de Moctezuma
      • Moctezuma
Mineralogical Magazine(1974) 39, 744-746; Panczner(1987).
USA
 
  • Arizona
    • Cochise Co.
      • Tombstone Hills
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 159.
  • Utah
    • Juab Co.
      • East Tintic Mts
        • Tintic District
          • Eureka
[MinRec 27:464]
Mineral and/or Locality  
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