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Thérèsemagnanite

A valid IMA mineral species
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About ThérèsemagnaniteHide

Formula:
NaCo4(SO4)(OH)6Cl · 6H2O
First described as a (Na-free) mineral with the formula (Co,Zn,Ni)6(SO4)(OH,Cl)10·8H2O, redefined in 2015. The formula was then redefined by Kasatkin et al. (2018) and the structure established by Mills et al. (2019).
Colour:
Pink to light pink
Lustre:
Pearly
Hardness:
1½ - 2
Specific Gravity:
2.52
Crystal System:
Trigonal
Member of:
Name:
Named for Marie-Thérèse Magnan (Toulon, France) for her contributions to knowledge about the Cap Garonne mine, Var (France).
Thérèsemagnanite may be closely related to gordaite (Kolitsch, unpubl. data, 1999):
- the indexed X-ray powder patterns of both minerals are very similar
- both gordaite and thérèsemagnanite are uniaxial negative and their refractive indices and birefringence are quite similar
- thérèsemagnanite may contain Na (possibly overlooked because of Na/Zn peak overlap)

Redefined by IMA in 2015 as a mineral of the gordaite group (IMA 15-K).

Chemically similar to cobaltoblödite.


Unique IdentifiersHide

Mindat ID:
7335
Long-form identifier:
mindat:1:1:7335:2
GUID
(UUID V4):
89332f23-7536-4fa0-9165-246059877ef1

IMA Classification of ThérèsemagnaniteHide

Approved
IMA status notes:
Redefined by the IMA
Approval year:
1991
First published:
1993
Approval history:
Redefined in 2015 as the Co analogue of gordaite.

Classification of ThérèsemagnaniteHide

7.DD.80

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
D : With only medium-sized cations; sheets of edge-sharing octahedra
31.2.5.1

31 : HYDRATED SULFATES CONTAINING HYDROXYL OR HALOGEN
2 : (AB)6(XO4)Zq·xH2O

Mineral SymbolsHide

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

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

Physical Properties of ThérèsemagnaniteHide

Pearly
Colour:
Pink to light pink
Streak:
Light pink
Hardness:
1½ - 2 on Mohs scale
Cleavage:
Perfect
{001}
Fracture:
Irregular/Uneven
Density:
2.52(2) g/cm3 (Measured)    2.48(1) g/cm3 (Calculated)

Optical Data of ThérèsemagnaniteHide

Type:
Uniaxial (-)
RI values:
nω = 1.568 nε = 1.542
Max Birefringence:
δ = 0.026
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low
Pleochroism:
Strong
Comments:
0=pink, E=light pink to colorless.

Chemistry of ThérèsemagnaniteHide

Mindat Formula:
NaCo4(SO4)(OH)6Cl · 6H2O

First described as a (Na-free) mineral with the formula (Co,Zn,Ni)6(SO4)(OH,Cl)10·8H2O, redefined in 2015. The formula was then redefined by Kasatkin et al. (2018) and the structure established by Mills et al. (2019).

Crystallography of ThérèsemagnaniteHide

Crystal System:
Trigonal
Class (H-M):
3 - Rhombohedral
Space Group:
P3
Cell Parameters:
a = 8.363(8) Å, c = 13.031(2) Å
Ratio:
a:c = 1 : 1.558
Unit Cell V:
789.28 ų (Calculated from Unit Cell)
Z:
3
Comment:
Cell data for neotype (Kasatkin et al., 2018).

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
13.1 Å(100)
6.552 Å(25)
4.177 Å(25)
3.523 Å(30)
2.736 Å(25)
2.681 Å(40)
2.527 Å(90)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 7: Great Oxidation Event<2.4
47a : [Near-surface hydration of prior minerals]
47g : [Halogen-bearing surface weathering minerals]

Type Occurrence of ThérèsemagnaniteHide

General Appearance of Type Material:
Occurs as pink to light pink, thin platy crystals, making up radiating spherules to 0.2mm.
Place of Conservation of Type Material:
Mineralogy Department of the Natural History Museum, Geneva, Switzerland.
Reference:
Sarp, H. (1993) Guarinoite (ZnCoNi)6(SO4)(OH,Cl)10*5H2O et theresemagnanite (CoZnNi)6(SO4)(OH,Cl)10·8H2O, deux nouveaux minéraux de la mine de Cap Garonne, Var, France. Archs. Sci. Genève: 46(1): 37-44.

Synonyms of ThérèsemagnaniteHide

Other Language Names for ThérèsemagnaniteHide

Relationship of Thérèsemagnanite to other SpeciesHide

Member of:
Other Members of this group:
BechereriteZn7Cu(OH)13[(SiO(OH)3(SO4)]Trig. 3 : P3
GordaiteNaZn4(SO4)(OH)6Cl · 6H2OTrig. 3 : P3
GuarinoiteZn6(SO4)(OH)10 · 5H2OHex.
Hanahanite [Zn8(OH)14(SO4)] · 3H2OHex. 6 : P63
Haywoodite[Pb(H2O)10][Zn12(OH)20(H2O)(SO4)3]Tric. 1 : P1
Hodgesmithite(Cu,Zn)6Zn(SO4)2(OH)10 · 3H2OTrig. 3 : P3
LahnsteiniteZn4(SO4)(OH)6 · 3H2O Tric. 1 : P1
NamuwiteZn4(SO4)(OH)6 · 4H2OTrig. 3 : P3
OsakaiteZn4(SO4)(OH)6 · 5H2OTric. 1 : P1
Ramsbeckite(Cu,Zn)15(SO4)4(OH)22 · 6H2OMon. 2/m
TzeferisiteCaZn8(SO4)2(OH)12Cl2(H2O)9Trig. 3m (3 2/m) : R3c

Common AssociatesHide

Associated Minerals Based on Photo Data:
3 photos of Thérèsemagnanite associated with NatrozippeiteNa5(UO2)8(SO4)4O5(OH)3 · 12H2O
2 photos of Thérèsemagnanite associated with GypsumCaSO4 · 2H2O
1 photo of Thérèsemagnanite associated with AndersoniteNa2Ca(UO2)(CO3)3 · 6H2O
1 photo of Thérèsemagnanite associated with MarécottiteMg3(UO2)8(SO4)4O6(OH)2 · 28H2O

Related Minerals - Strunz-mindat GroupingHide

7.DD.AsagiiteNiCu4(SO4)(OH)6 · 6H2OMon. 2/m : P21/b
7.DD.05FelsőbányaiteAl4(SO4)(OH)10 · 4H2OMon. 2 : P21
7.DD.07LlantenesiteCu6Al[SeO4](OH)12Cl · 3H2OTrig. 3m : P3 1c
7.DD.10LangiteCu4(SO4)(OH)6 · 2H2OMon. m
7.DD.10PosnjakiteCu4(SO4)(OH)6 · H2OMon. m : Pm
7.DD.10WroewolfeiteCu4(SO4)(OH)6 · 2H2OMon. m : Pm
7.DD.10GobeliniteCoCu4(SO4)2(OH)6 · 6H2OMon. 2/m : P21/m
7.DD.10FehriteMgCu4(SO4)2(OH)6 · 6H2OMon. 2/m : P21/b
7.DD.15SpangoliteCu6Al(SO4)(OH)12Cl · 3H2OTrig. 3m : P3 1c
7.DD.15KobyasheviteCu5(SO4)2(OH)6 · 4H2OTric. 1 : P1
7.DD.15Unnamed (Dimorph of Devilline)CaCu4(SO4)2(OH)6 · 3H2OMon. 2/m : P21/b
7.DD.20KtenasiteZnCu4(SO4)2(OH)6 · 6H2OMon. 2/m : P21/b
7.DD.25ChristeliteCu2Zn3(SO4)2(OH)6 · 4H2OTric. 1 : P1
7.DD.30CampigliaiteMn2+Cu4(SO4)2(OH)6 · 4H2OMon. 2 : B2
7.DD.30DevillineCaCu4(SO4)2(OH)6 · 3H2OMon. 2/m : P21/b
7.DD.30OrthoserpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2OOrth. mm2 : Pca21
7.DD.30SerpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2OMon. 2/m : B2/b
7.DD.30NiedermayriteCdCu4(SO4)2(OH)6 · 4H2OMon. 2/m : P21/m
7.DD.30EdwardsiteCu3Cd2(SO4)2(OH)6 · 4H2O Mon. 2/m : P21/b
7.DD.35Carrboydite(Ni1-xAlx)(SO4)x/2(OH)2 · nH2OHex.
7.DD.35Glaucocerinite(Zn1-xAlx)(OH)2(SO4)x/2 · nH2OHex.
7.DD.35Honessite(Ni1-xFe3+x)(OH)2[SO4]x/2 · nH2OTrig.
7.DD.35Hydrohonessite(Ni1-xFe3+x)(OH)2(SO4)x/2 · nH2OHex.
7.DD.35MotukoreaiteMg6Al3(OH)18[Na(H2O)6][SO4]2 · 6H2OTrig. 3m (3 2/m) : R3m
7.DD.35Mountkeithite[(Mg1-xFe3+x)(OH)2][SO4]x/2 · nH2OHex.
7.DD.35ShigaiteMn6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2OTrig. 3 : R3
7.DD.35WermlanditeMg7Al2(OH)18[Ca(H2O)6][SO4]2 · 6H2OTrig. 3m (3 2/m) : P3c1
7.DD.35WoodwarditeCu1-xAlx(OH)2(SO4)x/2 · nH2OTrig. 3m (3 2/m) : R3m
7.DD.35ZincaluminiteZn6Al6(SO4)2(OH)16 · 5H2O
7.DD.35Hydrowoodwardite(Cu1-xAlx)(OH)2[SO4]x/2 · nH2OTrig. 3m (3 2/m) : R3m
7.DD.35ZincowoodwarditeZn1-xAlx(OH)2[SO4]x/2 · nH2OTrig.
7.DD.35NatroglaucoceriniteZn6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2OHex.
7.DD.35NikischeriteFe2+6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2OTrig. 3 : R3
7.DD.40IsseliteCu6(SO4)(OH)10 · 5H2OOrth. mm2 : Pmn21
7.DD.40Lawsonbauerite(Mn2+,Mg)9Zn4(SO4)2(OH)22 · 8H2OMon. 2/m : P21/b
7.DD.40Torreyite(Mg,Mn2+)72Mn2+2Zn4(SO4)2(OH)22 · 8H2OMon. 2/m : P21/b
7.DD.45MooreiteMg92Mn2Zn4(SO4)2(OH)26 · 8H2OMon. 2/m : P2/b
7.DD.45Hodgesmithite(Cu,Zn)6Zn(SO4)2(OH)10 · 3H2OTrig. 3 : P3
7.DD.47LahnsteiniteZn4(SO4)(OH)6 · 3H2O Tric. 1 : P1
7.DD.50NamuwiteZn4(SO4)(OH)6 · 4H2OTrig. 3 : P3
7.DD.50Minohlite(Cu,Zn)7(SO4)2(OH)10 · 8H2OHex.
7.DD.52LauraniiteCu6Cd2(SO4)2(OH)12 · 5H2OMon. 2/m : P21/b
7.DD.55BechereriteZn7Cu(OH)13[(SiO(OH)3(SO4)]Trig. 3 : P3
7.DD.60Ramsbeckite(Cu,Zn)15(SO4)4(OH)22 · 6H2OMon. 2/m
7.DD.65VonbezingiteCa6Cu3(SO4)3(OH)12 · 2H2OMon. 2/m : P21/b
7.DD.70RedgilliteCu6(SO4)(OH)10 · H2OMon. 2/m : P21/b
7.DD.75ChalcoalumiteCuAl4(SO4)(OH)12 · 3H2OMon. 2 : P21
7.DD.75NickelalumiteNiAl4(SO4)(OH)12(H2O)3Mon. 2/m
7.DD.75KyrgyzstaniteZnAl4(SO4)(OH)12 · 3H2OMon. 2/m
7.DD.80GuarinoiteZn6(SO4)(OH)10 · 5H2OHex.
7.DD.80Schulenbergite(Cu,Zn)7(SO4)2(OH)10 · 3H2OTrig. 3
7.DD.80UM1992-30-SO:CCuHZn(Zn,Cu)7(SO4,CO3)2(OH)10 · 3H2OTrig. 3 : P3
7.DD.85MontetrisaiteCu6(SO4)(OH)10 · 2H2OOrth. mm2 : Cmc21

Fluorescence of ThérèsemagnaniteHide

Other InformationHide

Notes:
Soluble 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.

Internet Links for ThérèsemagnaniteHide

References for ThérèsemagnaniteHide

Reference List:

Localities for ThérèsemagnaniteHide

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.
France (TL)
 
  • Provence-Alpes-Côte d'Azur
    • Var
      • Toulon
        • Le Pradet
USA
 
  • Utah
    • San Juan County
      • Red Canyon Mining District
 
Mineral and/or Locality  
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