Telluromandarinoite
A valid IMA mineral species
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About Telluromandarinoite
Joseph Anthony Mandarino
Formula:
Fe3+2Te3O9 · 6H2O
Colour:
Pale green
Lustre:
Vitreous
Specific Gravity:
3.372 (Calculated)
Crystal System:
Monoclinic
Name:
Tellurium analogue of mandarinoite.
Unique Identifiers
Mindat ID:
42801
Long-form identifier:
mindat:1:1:42801:7
IMA Classification of Telluromandarinoite
Classification of Telluromandarinoite
4.JM.20
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates
M : Tellurites without additional anions, with H2O
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates
M : Tellurites without additional anions, with H2O
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 |
|---|---|---|
| Tmda | 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 Telluromandarinoite
Vitreous
Transparency:
Translucent
Colour:
Pale green
Streak:
White
Comment:
Crystals too small to determine the Mohs hardness
Tenacity:
Brittle
Cleavage:
None Observed
Parting:
Not observed
Fracture:
Irregular/Uneven
Density:
3.372 g/cm3 (Calculated)
Optical Data of Telluromandarinoite
Type:
Biaxial (+)
RI values:
nα = 1.750(3) nβ = 1.807(3) nγ = 1.910(5)
2V:
Calculated: 76.9°
Max. Birefringence:
δ = 0.160
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
Dispersion:
not noticed
Pleochroism:
Non-pleochroic
Comments:
optical orientation: Y = b, c ˆ Z = 10° in obtuse β
Chemistry of Telluromandarinoite
Mindat Formula:
Fe3+2Te3O9 · 6H2O
Element Weights:
Elements listed:
Crystallography of Telluromandarinoite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Cell Parameters:
a = 16.9356(5) Å, b = 7.8955(3) Å, c = 10.1678(3) Å
β = 98.006(1)°
β = 98.006(1)°
Ratio:
a:b:c = 2.145 : 1 : 1.288
Unit Cell V:
1346.32 ų
Z:
4
Comment:
Structurally similar to emmonsite
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 8.431 Å | (44) |
| 7.153 Å | (100) |
| 5.034 Å | (11) |
| 3.575 Å | (41) |
| 3.463 Å | (21) |
| 2.996 Å | (34) |
| 2.826 Å | (19) |
| 2.624 Å | (11) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47a : [Near-surface hydration of prior minerals] | |
| 47d : [Arsenates, antimonates, selenates, bismuthinates] |
Type Occurrence of Telluromandarinoite
General Appearance of Type Material:
Individual platy crystals, 0.2 mm or less, often in aggregates
Place of Conservation of Type Material:
Royal Ontario Museum, Toronto, Ontario,Canada, catalogue number M56017
Empirical Formula of Type Material:
Fe3+2.03(Te4+1.71Se4+1.27)Σ2.98O9·6H2O
Chemical Analysis of Type Material:
| SeO2 | 22.91 % |
|---|---|
| TeO2 | 44.30 % |
| Fe2O3 | 26.43 % |
| H2O | 17.59 % |
| Total: | 111.23 % |
Geological Setting of Type Material:
Hydrothermal breccias with silicified clasts of dacite tuffs cemented by silica/barite/alunite
Associated Minerals at Type Locality:
Synonyms of Telluromandarinoite
Other Language Names for Telluromandarinoite
Dutch:Telluromandarinoiet
German:Telluromandarinoit
Common Associates
Associations Based on Photo Data:
| 2 photos of Telluromandarinoite associated with Native Gold | Au |
| 1 photo of Telluromandarinoite associated with Jarosite | KFe3+3(SO4)2(OH)6 |
Related Minerals - Strunz-mindat Grouping
| 4.JM. | Wortupaite | MgNi2+2(Te4+O3)3 · 3H2O |
| 4.JM. | Rudolfhermannite | Fe3+2(Te4+O3)3(H2O) |
| 4.JM.05 | Zemannite | Mg0.5ZnFe3+(Te4+O3)3 · 4.5H2O |
| 4.JM.05 | Keystoneite | Mg0.5Ni2+Fe3+(Te4+O3)3 · 4.5H2O |
| 4.JM.05 | Kinichilite | Mg0.5Mn2+Fe3+(Te4+O3)3 · 4.5H2O |
| 4.JM.05 | Ilirneyite | Mg0.5ZnMn3+(Te4+O3)3 · 4.5H2O |
| 4.JM.10 | Emmonsite | Fe3+2(TeO3)3 · 2H2O |
| 4.JM.10 | Blakeite | Fe3+2[TeO3]3 (?) |
| 4.JM.15 | Graemite | Cu[TeO3] · H2O |
| 4.JM.20 | Teineite | Cu2+(Te4+O3) · 2H2O |
| 4.JM.25 | Millsite | Cu2+(Te4+O3) · 2H2O |
Other Information
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 Telluromandarinoite
mindat.org URL:
https://www.mindat.org/min-42801.html
Please feel free to link to this page.
Please feel free to link to this page.
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External Links:
Mineral Dealers:
References for Telluromandarinoite
Reference List:
Williams, P. A., Hatert, F., Pasero, M., Mills, S. J. (2011) New minerals and nomenclature modifications approved in 2011, CNMNC Newsletter No. 10. Mineralogical Magazine, 75 (5) 2549-2561 doi:10.1180/minmag.2011.075.5.2549
Localities for Telluromandarinoite
Showing 3 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.
Chile (TL) | |
| Williams et al. (2011) +1 other reference |
Russia | |
| Pekov et al. (2026) |
Spain | |
| ... +1 other reference |
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Filón 340, Rodalquilar, Níjar, Almería, Andalusia, Spain