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Rodalquilarite
A valid IMA mineral species
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About Rodalquilarite
Discovering engineer next to the collapsed entrance to 340
FilĂłn 340, Rodalquilar, NĂjar, AlmerĂa, Andalusia, Spain
FilĂłn 340, Rodalquilar, NĂjar, AlmerĂa, Andalusia, Spain
Formula:
Fe2(TeO2OH)3(TeO3)Cl
Colour:
Emerald- to grass-green
Lustre:
Greasy
Hardness:
2 - 3
Specific Gravity:
4.97 - 5.15
Crystal System:
Triclinic
Name:
For the type locality at Rodalquilar, NĂjar, AlmerĂa, Andalusia, Spain.
This page provides mineralogical data about Rodalquilarite.
Unique Identifiers
Mindat ID:
3435
Long-form identifier:
mindat:1:1:3435:3
IMA Classification of Rodalquilarite
Approved
IMA Formula:
H3Fe3+2(Te4+O3)4Cl
Approval year:
1967
First published:
1968
Classification of Rodalquilarite
4.JL.05
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates
L : Tellurites with additional anions, without H2O
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates
L : Tellurites with additional anions, without H2O
34.6.2.1
34 : SELENITES, TELLURITES AND SULFITES
6 : Anhydrous Selenites, Tellurites and Sulfites containing Hydroxyl or Halogen
34 : SELENITES, TELLURITES AND SULFITES
6 : Anhydrous Selenites, Tellurites and Sulfites containing Hydroxyl or Halogen
28.3.26
28 : Selenites, Selenates, Tellurites, and Tellurates
3 : Tellurites
28 : Selenites, Selenates, Tellurites, and Tellurates
3 : Tellurites
Mineral Symbols
As of 2021 there are now IMAâCNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Raq | IMAâCNMNC | Warr, L.N. (2021). IMAâCNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Rodalquilarite
Greasy
Transparency:
Translucent
Colour:
Emerald- to grass-green
Streak:
Greenish yellow
Hardness:
2 - 3 on Mohs scale
Tenacity:
Very brittle
Cleavage:
Distinct/Good
One good cleavage
One good cleavage
Density:
4.97 - 5.15 g/cm3 (Measured) 5.11(3) g/cm3 (Calculated)
Optical Data of Rodalquilarite
Type:
Biaxial (-)
RI values:
nα = 2.1 nγ = 2.2
2V:
Measured: 38°
Max. Birefringence:
δ = 0.100
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 ”m 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. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
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 ”m 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. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
Surface Relief:
Very High (positive)
Relative to Canada balsam mounting medium (n ≈ 1.537).
Relative to Canada balsam mounting medium (n ≈ 1.537).
This shows the grain boundary and Becke line effect under plane-polarised
light, based on the contrast between this mineral's average refractive
index and the mounting medium. It does not take into account mineral
colouration.
In focus
Interference Figure:
This shows the idealized biaxial acute bisectrix (Bxa) interference figure
- the conoscopic view for a grain cut perpendicular to the acute bisectrix, using
this mineral's 2V. The two small white dots mark the melatopes - the points
where the two optic axes emerge - and are shown only when they fall within the
field of view. The coloured bands are isochromatics, and the dark bands are
isogyres.
Rotate the stage: at 0°/90° the isogyres form a cross through the melatopes; at 45° they pull apart into curved hyperbolas. That splitting on rotation - absent in a uniaxial figure - is the standard diagnostic test for telling biaxial minerals from uniaxial ones. If 2V is large, the melatopes may fall outside the field of view, as they often do at the microscope too.
Rotate the stage: at 0°/90° the isogyres form a cross through the melatopes; at 45° they pull apart into curved hyperbolas. That splitting on rotation - absent in a uniaxial figure - is the standard diagnostic test for telling biaxial minerals from uniaxial ones. If 2V is large, the melatopes may fall outside the field of view, as they often do at the microscope too.
Dispersion:
r < v extreme
Pleochroism:
Non-pleochroic
Chemistry of Rodalquilarite
Mindat Formula:
Fe2(TeO2OH)3(TeO3)Cl
Element Weights:
Crystallography of Rodalquilarite
Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Cell Parameters:
a = 8.95(5) Å, b = 5.09(1) Å, c = 6.63 Å
α = 103.17°, β = 107.08°, γ = 77.87°
α = 103.17°, β = 107.08°, γ = 77.87°
Ratio:
a:b:c = 1.758 : 1 : 1.303
Unit Cell V:
277.77 Ă
Âł (Calculated from Unit Cell)
Z:
1
Morphology:
Stout crystals to 2.5cm, crusts.
Crystal Structure
Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Show
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Display Options
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
View
CIF File Best | x | y | z | a | b | c
CIF File Best | x | y | z | a | b | c
Rotation
Stop | Start
Stop | Start
Labels
Console Off | On | Grey | Yellow
Console Off | On | Grey | Yellow
Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0018501 | Rodalquilarite | Kampf A R, Mills S J (2011) The role of hydrogen in tellurites: crystal structure refinements of juabite, poughite and rodalquilarite Journal of Geosciences 56 235-247 | 2011 | Tambo mine, Coquimbo Regioin, Chile | 0 | 293 | |
| 0013969 | Rodalquilarite | Feger C R, Kolis J W, Gorny K, Pennington C (1999) Rodalquilarite revisited: the hydrothermal synthesis and structural reinvestigation of H3Fe2(TeO3)4Cl Journal of Solid State Chemistry 143 254-259 | 1999 | synthetic | 0 | 293 | |
| 0009361 | Rodalquilarite | Dusausoy Y, Protas J (1969) Determination et etude de la structure cristalline de la rodalquilarite, chlorotellurite acide de fer Acta Crystallographica B25 1551-1558 |  | 1969 | Almeria, Spain | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 4.24 Ă | (FFF) |
| 2.62 Ă | (FF) |
| 3.31 Ă | (F) |
| 2.17 Ă | (F) |
| 2.85 Ă | (mF) |
| 2.97 Ă | (m) |
| 1.873 Ă | (mf) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47a : [Near-surface hydration of prior minerals] | |
| 47e : [Vanadates, chromates, manganates] | |
| 47g : [Halogen-bearing surface weathering minerals] | |
| 47h : [Near-surface oxidized, dehydrated minerals] |
Geological Setting:
Oxidation zone of tellurium-bearing precious metal deposits.
Type Occurrence of Rodalquilarite
General Appearance of Type Material:
Tiny stout crystals, mostly less than 0.1 mm and in crusts in quartz geodes.
Place of Conservation of Type Material:
Natural History Museum, Paris, France
National School of Mines, Paris, France.
National School of Mines, Paris, France.
Geological Setting of Type Material:
Oxidation zone of a gold deposit
Associated Minerals at Type Locality:
Synonyms of Rodalquilarite
Other Language Names for Rodalquilarite
Common Associates
Associations Based on Photo Data:
| 47 photos of Rodalquilarite associated with Jarosite | KFe3+3(SO4)2(OH)6 |
| 40 photos of Rodalquilarite associated with Alunite | KAl3(SO4)2(OH)6 |
| 25 photos of Rodalquilarite associated with Native Gold | Au |
| 10 photos of Rodalquilarite associated with Quartz | SiO2 |
| 8 photos of Rodalquilarite associated with Paratellurite | TeO2 |
| 8 photos of Rodalquilarite associated with Tellurite | TeO2 |
| 4 photos of Rodalquilarite associated with Krennerite | Au3AgTe8 |
| 4 photos of Rodalquilarite associated with Empressite | AgTe |
| 3 photos of Rodalquilarite associated with Pyrite | FeS2 |
| 3 photos of Rodalquilarite associated with Schieffelinite | Pb10Te6+6O20(OH)14(SO4)(H2O)5 |
Related Minerals - Strunz-mindat Grouping
| 4.JL. | ChorÄ ĆŒewiczite | Pb2Fe3+(Te6+O6)(HCO3) |
| 4.JL. | Tomiolloite | Al12(Te4+O3)5[(SO3)0.5(SO4)0.5](OH)24 |
| 4.JL.10 | Mackayite | Fe3+(Te4+2O5)(OH) |
| 4.JL.15 | Mroseite | CaTe4+(CO3)O2 |
| 4.JL.20 | Pingguite | Bi6Te2O15 |
| 4.JL.25 | Tlapallite | (Ca,Pb)3CaCu6[Te4+3Te6+O12]2(Te4+O3)2(SO4)2 · 3H2O |
| 4.JL.30 | 'Girdite' | H2Pb3(Te4+O3)(Te6+O6) |
| 4.JL.40 | Bodieite | Bi2(TeO3)2(SO4) |
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 Rodalquilarite
mindat.org URL:
https://www.mindat.org/min-3435.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 Rodalquilarite
Reference List:
Sierra Lopez, J., Leal, G., Pierrot, Roland, Laurent, Yvette, Protas, Jean, Dusausoy, Yves (1968) La rodalquilarite, chlorotellurite de fer, une nouvelle espÚce minérale. Bulletin de Minéralogie, 91 (1) 28-33 doi:10.3406/bulmi.1968.6183
Fleisher, Michael (1968) New Mineral Names. American Mineralogist, 53 (11-12) 2103-2106 pp.2104-2105
Sierra Lopez, J., Leal, G., Pierrot, Roland, Laurent, Yvette, Protas, Jean, Dusausoy, Yves (1968) La rodalquilarite, chlorotellurite de fer, une nouvelle espÚce minérale. Bulletin de Minéralogie, 91 (1) 28-33 doi:10.3406/bulmi.1968.6183
Dusausoy, Y., Protas, J. (1969) DĂ©termination et Ă©tude de la structure cristalline de la rodalquilarite, chlorotellurite acide de fer. Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry, 25 (8) 1551-1558 doi:10.1107/s0567740869004316
Localities for Rodalquilarite
Showing 15 localities.
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
â - 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 | |
| Gebhard (1995) |
| Deyell et al. (2005) |
| [AmMin 85:1324] +2 other references | |
Mexico | |
| Marek Chorazewicz (2023) |
Spain | |
| Sierra Lopez et al. (1968) |
| Sintes et al. (2025) |
| Sierra Lopez et al. (1968) |
| www.foro-minerales.com (2021) | |
USA | |
| Williams (1981) |
| Anthony et al. (1995) |
| Thorne (n.d.) | |
| Williams (1980) +1 other reference | |
| Anthony et al. (1995) | |
| Specimen purchased from Shannon ... |
| Kampf et al. (2022) |
Quick NavTopAbout RodalquilariteUnique IdentifiersIMA Classification Classification Mineral SymbolsPhysical Properties Optical Data Chemistry Crystallography Crystal StructureX-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsOther LanguagesCommon AssociatesStrunz-MindatOther InformationInternet Links References Localities Locality List
Wendy pit, Tambo Mine, Vicuña, Elqui Province, Coquimbo, Chile