Thérèsemagnanite
A valid IMA mineral species
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About Thérèsemagnanite
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.
- 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.
Name Encoding
ASCII-7:
Theresemagnanite
Unique Identifiers
Mindat ID:
7335
Long-form identifier:
mindat:1:1:7335:2
Similar Names
| Theresmagnanit | A synonym of 'Theresmagnanite' |
Classification of Thérèsemagnanite
Gordaite-type sheet
Members of the namuwite group exhibit gordaite-type sheets.
IMA Classification of Thérèsemagnanite
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.
Type description reference:
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
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
31 : HYDRATED SULFATES CONTAINING HYDROXYL OR HALOGEN
2 : (AB)6(XO4)Zq·xH2O
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Tmg | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Thérèsemagnanite
Pearly
Colour:
Pink to light pink
Streak:
Light pink
Hardness:
1½ - 2 on Mohs scale
Cleavage:
Perfect
{001}
{001}
Fracture:
Irregular/Uneven
Density:
2.52(2) g/cm3 (Measured) 2.48(1) g/cm3 (Calculated)
Optical Data of Thérèsemagnanite
Type:
Uniaxial (-)
RI values:
nω = 1.568 nε = 1.542
Max. Birefringence:
δ = 0.026
Based on recorded range of RI values above.
Based on recorded range of RI values above.
Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars.
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars.
Surface Relief:
Moderate
Pleochroism:
Strong
Comments:
0=pink, E=light pink to colorless.
Chemistry of Thérèsemagnanite
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).
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).
Element Weights:
Crystallography of Thérèsemagnanite
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 Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 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 Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest 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 Thérèsemagnanite
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.
Synonyms of Thérèsemagnanite
Other Language Names for Thérèsemagnanite
Relationship of Thérèsemagnanite to other Species
Member of:
Other Members of Namuwite Group:
| Bechererite | Zn7Cu(OH)13[(SiO(OH)3(SO4)] | Trig. 3 : P3 |
| Gordaite | NaZn4(SO4)(OH)6Cl · 6H2O | Trig. 3 : P3 |
| Guarinoite | Zn6(SO4)(OH)10 · 5H2O | Hex. |
| Hanahanite | [Zn8(OH)14(SO4)] · 3H2O | Hex. 6 : P63 |
| Haywoodite | [Pb(H2O)10][Zn12(OH)20(H2O)(SO4)3] | Tric. 1 : P1 |
| Hodgesmithite | (Cu,Zn)6Zn(SO4)2(OH)10 · 3H2O | Trig. 3 : P3 |
| Lahnsteinite | Zn4(SO4)(OH)6 · 3H2O | Tric. 1 : P1 |
| Namuwite | Zn4(SO4)(OH)6 · 4H2O | Trig. 3 : P3 |
| Osakaite | Zn4(SO4)(OH)6 · 5H2O | Tric. 1 : P1 |
| Ramsbeckite | (Cu,Zn)15(SO4)4(OH)22 · 6H2O | Mon. 2/m |
| Tzeferisite | CaZn8(SO4)2(OH)12Cl2(H2O)9 | Trig. 3m(32/m) : R3c |
Common Associates
Associations Based on Photo Data:
| 3 photos of Thérèsemagnanite associated with Natrozippeite | Na5(UO2)8(SO4)4O5(OH)3 · 12H2O |
| 2 photos of Thérèsemagnanite associated with Gypsum | CaSO4 · 2H2O |
| 1 photo of Thérèsemagnanite associated with Marécottite | Mg3(UO2)8(SO4)4O6(OH)2 · 28H2O |
| 1 photo of Thérèsemagnanite associated with Andersonite | Na2Ca(UO2)(CO3)3 · 6H2O |
Related Minerals - Strunz-mindat Grouping
| 7.DD. | Asagiite | NiCu4(SO4)2(OH)6 · 6H2O |
| 7.DD.05 | Felsőbányaite | Al4(SO4)(OH)10 · 4H2O |
| 7.DD.07 | Llantenesite | Cu6Al[SeO4](OH)12Cl · 3H2O |
| 7.DD.10 | Langite | Cu4(SO4)(OH)6 · 2H2O |
| 7.DD.10 | Fehrite | MgCu4(SO4)2(OH)6 · 6H2O |
| 7.DD.10 | Posnjakite | Cu4(SO4)(OH)6 · H2O |
| 7.DD.10 | Wroewolfeite | Cu4(SO4)(OH)6 · 2H2O |
| 7.DD.10 | Gobelinite | CoCu4(SO4)2(OH)6 · 6H2O |
| 7.DD.15 | Kobyashevite | Cu5(SO4)2(OH)6 · 4H2O |
| 7.DD.15 | Spangolite | Cu6Al(SO4)(OH)12Cl · 3H2O |
| 7.DD.15 | 'Unnamed (Dimorph of Devilline)' | CaCu4(SO4)2(OH)6 · 3H2O |
| 7.DD.20 | Ktenasite | ZnCu4(SO4)2(OH)6 · 6H2O |
| 7.DD.25 | Christelite | Cu2Zn3(SO4)2(OH)6 · 4H2O |
| 7.DD.30 | Edwardsite | Cu3Cd2(SO4)2(OH)6 · 4H2O |
| 7.DD.30 | Niedermayrite | CdCu4(SO4)2(OH)6 · 4H2O |
| 7.DD.30 | Serpierite | Ca(Cu,Zn)4(SO4)2(OH)6 · 3H2O |
| 7.DD.30 | Campigliaite | Mn2+Cu4(SO4)2(OH)6 · 4H2O |
| 7.DD.30 | Orthoserpierite | Ca(Cu,Zn)4(SO4)2(OH)6 · 3H2O |
| 7.DD.30 | Devilline | CaCu4(SO4)2(OH)6 · 3H2O |
| 7.DD.35 | Shigaite | Mn6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2O |
| 7.DD.35 | Zincaluminite | (Zn1-xAlx)(SO4)x/2(OH)2 · nH2O |
| 7.DD.35 | Zincowoodwardite | Zn1-xAlx(OH)2[SO4]x/2 · nH2O |
| 7.DD.35 | Natroglaucocerinite | Zn6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2O |
| 7.DD.35 | Hydrowoodwardite | (Cu1-xAlx)(OH)2[SO4]x/2 · nH2O |
| 7.DD.35 | Honessite | (Ni1-xFe3+x)(OH)2[SO4]x/2 · nH2O |
| 7.DD.35 | Carrboydite | (Ni1-xAlx)(SO4)x/2(OH)2 · nH2O |
| 7.DD.35 | Glaucocerinite | (Zn1-xAlx)(OH)2(SO4)x/2 · nH2O |
| 7.DD.35 | Wermlandite | Mg7Al2(OH)18[Ca(H2O)6][SO4]2 · 6H2O |
| 7.DD.35 | Nikischerite | Fe2+6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2O |
| 7.DD.35 | Hydrohonessite | (Ni1-xFe3+x)(OH)2(SO4)x/2 · nH2O |
| 7.DD.35 | Woodwardite | Cu1-xAlx(OH)2(SO4)x/2 · nH2O |
| 7.DD.35 | Motukoreaite | Mg6Al3(OH)18[Na(H2O)6][SO4]2 · 6H2O |
| 7.DD.35 | Mountkeithite | [(Mg1-xFe3+x)(OH)2][SO4]x/2 · nH2O |
| 7.DD.40 | Lawsonbauerite | (Mn2+,Mg)9Zn4(SO4)2(OH)22 · 8H2O |
| 7.DD.40 | Torreyite | (Mg,Mn2+)7◻2Mn2+2Zn4(SO4)2(OH)22 · 8H2O |
| 7.DD.40 | Isselite | Cu6(SO4)(OH)10(H2O)4 · H2O |
| 7.DD.45 | Mooreite | Mg9◻2Mn2Zn4(SO4)2(OH)26 · 8H2O |
| 7.DD.45 | Hodgesmithite | (Cu,Zn)6Zn(SO4)2(OH)10 · 3H2O |
| 7.DD.47 | Lahnsteinite | Zn4(SO4)(OH)6 · 3H2O |
| 7.DD.50 | Namuwite | Zn4(SO4)(OH)6 · 4H2O |
| 7.DD.50 | Minohlite | (Cu,Zn)7(SO4)2(OH)10 · 8H2O |
| 7.DD.52 | Lauraniite | Cu6Cd2(SO4)2(OH)12 · 5H2O |
| 7.DD.55 | Bechererite | Zn7Cu(OH)13[(SiO(OH)3(SO4)] |
| 7.DD.60 | Ramsbeckite | (Cu,Zn)15(SO4)4(OH)22 · 6H2O |
| 7.DD.65 | Vonbezingite | Ca6Cu3(SO4)3(OH)12 · 2H2O |
| 7.DD.70 | Redgillite | Cu6(SO4)(OH)10 · H2O |
| 7.DD.75 | Nickelalumite | NiAl4(SO4)(OH)12(H2O)3 |
| 7.DD.75 | Kyrgyzstanite | ZnAl4(SO4)(OH)12 · 3H2O |
| 7.DD.75 | Chalcoalumite | CuAl4(SO4)(OH)12 · 3H2O |
| 7.DD.80 | Schulenbergite | (Cu,Zn)7(SO4)2(OH)10 · 3H2O |
| 7.DD.80 | 'UM1992-30-SO:CCuHZn' | (Zn,Cu)7(SO4,CO3)2(OH)10 · 3H2O |
| 7.DD.80 | Guarinoite | Zn6(SO4)(OH)10 · 5H2O |
| 7.DD.85 | Montetrisaite | Cu6(SO4)(OH)10 · 2H2O |
Fluorescence of Thérèsemagnanite
None
Other Information
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 Thérèsemagnanite
mindat.org URL:
https://www.mindat.org/min-7335.html
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References for Thérèsemagnanite
Reference List:
Sarp, H. (1993) Guarinoite (Zn,Co,Ni)6(SO4)(OH,Cl)10·5H2O et thérèsemagnanite (Co,Zn,Ni)6(SO4)(OH,Cl)10·8H2O, deux nouveaux minéraux de la mine de Cap Garonne, Var, France. Archives des Sciences, Genève, 46 (1) 37-44
Jambor, John L., Vanko, David A. (1993) New Mineral Names. American Mineralogist, 78 (11-12) 1314-1319
Sarp, H. (1993) Guarinoite (Zn,Co,Ni)6(SO4)(OH,Cl)10·5H2O et thérèsemagnanite (Co,Zn,Ni)6(SO4)(OH,Cl)10·8H2O, deux nouveaux minéraux de la mine de Cap Garonne, Var, France. Archives des Sciences, Genève, 46 (1) 37-44
Hålenius, U.; Hatert, F.; Pasero, M.; Mills, S. J. (2015) New minerals and nomenclature modifications approved in 2015. Mineralogical Magazine, 79 (5). p.1223-1230. doi:10.1180/minmag.2015.079.5.16
Localities for Thérèsemagnanite
Showing 4 localities.
symbol to view information about a locality.
The Locality List
- 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).
All localities listed without proper references should be considered as questionable.
France (TL) | |
| Arch. Sci. Gen. 46/1 (1993) +2 other references |
| Favreau et al. (2024) | |
USA | |
| Williams et al. (2014) +2 other references |
| Collected by Al Wilkins. In the ... +1 other reference |
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Cap Garonne Mine, Le Pradet, Toulon, Var, Provence-Alpes-Côte d'Azur, France