Ilirneyite
A valid IMA mineral species
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About Ilirneyite
Formula:
Mg0.5ZnMn3+(Te4+O3)3 · 4.5H2O
Colour:
Reddish brown, dark brownish-red, brown, or light brown
Lustre:
Adamantine, Silky, Sub-Metallic
Specific Gravity:
4.205 (Calculated)
Crystal System:
Hexagonal
Member of:
Name:
Named after the discovery locality, near the village of Ilirney (pop. < 300). The Ilirney Lakes and Ilirneyveem River are also located in this area and the Sentyabr’skoe deposit belongs to the Ilirney ore district.
Unique Identifiers
Mindat ID:
46800
Long-form identifier:
mindat:1:1:46800:6
GUID
(UUID V4):
(UUID V4):
93936136-119b-4936-b758-3bf0dcb959ab
IMA Classification of Ilirneyite
Approved
IMA Formula:
Mg0.5[ZnMn3+(TeO3)3] · 4.5H2O
Approval year:
2015
First published:
2018
Classification of Ilirneyite
4.JM.05
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 |
---|---|---|
Iny | 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 Ilirneyite
Adamantine, Silky, Sub-Metallic
Transparency:
Transparent, Translucent
Colour:
Reddish brown, dark brownish-red, brown, or light brown
Hardness:
VHN100=122 - 142 - Vickers
Comment:
Mohs estimated from VHN data.
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Irregular/Uneven
Density:
4.205 g/cm3 (Calculated)
Comment:
Density could not be measured due to small crystal size and open-framework aggregates.
Optical Data of Ilirneyite
Anisotropism:
Weak.
Bireflectance:
Weak.
Reflectivity:
Wavelength | R1 | R2 |
---|---|---|
400nm | 7.1% | 8.2% |
420nm | 7.7% | 8.8% |
440nm | 7.9% | 9.1% |
460nm | 7.8% | 9.0% |
470nm | 7.8% | 9.0% |
480nm | 7.7% | 8.9% |
500nm | 7.6% | 8.8% |
520nm | 7.5% | 8.8% |
540nm | 7.4% | 8.7% |
546nm | 7.3% | 8.7% |
560nm | 7.3% | 8.6% |
580nm | 7.2% | 8.6% |
589nm | 7.2% | 8.6% |
600nm | 7.2% | 8.5% |
620nm | 7.1% | 8.5% |
640nm | 7.1% | 8.4% |
660nm | 7.0% | 8.3% |
680nm | 7.0% | 8.2% |
700nm | 6.9% | 8.2% |
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 9.1%.
R1 shown in black, R2 shown in red
Colour in reflected light:
Dark gray.
Internal Reflections:
Distinct, red-brown.
Pleochroism:
Not Visible
Chemistry of Ilirneyite
Mindat Formula:
Mg0.5ZnMn3+(Te4+O3)3 · 4.5H2O
Crystallography of Ilirneyite
Crystal System:
Hexagonal
Class (H-M):
6/m - Dipyramidal
Space Group:
P63/m
Cell Parameters:
a = 9.40(2) Å, c = 7.66(2) Å
Ratio:
a:c = 1 : 0.815
Unit Cell V:
586.16 ų (Calculated from Unit Cell)
Z:
2
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
8.18 Å | (100) |
4.088 Å | (61) |
3.847 Å | (14) |
3.087 Å | (15) |
2.977 Å | (16) |
2.864 Å | (24) |
2.796 Å | (52) |
2.356 Å | (10) |
Comments:
From Type Description.
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] |
Type Occurrence of Ilirneyite
General Appearance of Type Material:
(1) long prismatic hexagonal crystals up to 0.15 mm in length and up to 0.01 mm in thickness, typically combined in sprays or open-work chaotic groups; (2) moss-like aggregates consisting of acicular to hair-like crystals up to 0.03 mm in length and up to 2 µm in thickness; and (3) earthy films.
Place of Conservation of Type Material:
Type material is deposited in the collections of the Fersman Mineralogical Museum of the Russian Academy of Sciences, Moscow, Russia, registration number 4720/1.
Geological Setting of Type Material:
Oxidation zone of telluride bearing quartz veins.
Associated Minerals at Type Locality:
Reference:
Pekov, I.V., Siidra, O.I., Vlasov, E.A., Yapaskurt, V.O., Polekhovsky, Y.S., Apletalin, A.V. (2018) Ilirneyite, Mg0.5[ZnMn3+(TeO3)3]·4.5H2O, a New Mineral from Chukotka, Russia. The Canadian Mineralogist: 56(6): 913-921.
Synonyms of Ilirneyite
Relationship of Ilirneyite to other Species
Member of:
Other Members of this group:
Keystoneite | Mg0.5Ni2+Fe3+(Te4+O3)3 · 4.5H2O | Hex. 6 : P63 |
Kinichilite | Mg0.5Mn2+Fe3+(Te4+O3)3 · 4.5H2O | Hex. 6/m : P63/m |
Zemannite | Mg0.5ZnFe3+(Te4+O3)3 · 4.5H2O | Trig. 3 : P3 |
Common Associates
Related Minerals - Strunz-mindat Grouping
4.JM. | Rudolfhermannite | Fe(Te4+O3)3 · H2O |
4.JM. | Wortupaite | MgNi2+2(Te4+O3)3 · 3H2O |
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 | Zemannite | Mg0.5ZnFe3+(Te4+O3)3 · 4.5H2O |
4.JM.10 | Blakeite | Fe3+2[TeO3]3 (?) |
4.JM.10 | Emmonsite | Fe3+2(TeO3)3 · 2H2O |
4.JM.15 | Graemite | Cu[TeO3] · H2O |
4.JM.20 | Teineite | Cu2+(Te4+O3) · 2H2O |
4.JM.20 | Telluromandarinoite | Fe3+2Te3O9 · 6H2O |
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 Ilirneyite
mindat.org URL:
https://www.mindat.org/min-46800.html
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Please feel free to link to this page.
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References for Ilirneyite
Reference List:
Hålenius, U., Hatert, F., Pasero, M., Mills, S. J. (2015) New minerals and nomenclature modifications approved in 2015, CNMNC Newsletter No 27. Mineralogical Magazine, 79 (5) 1223-1230 doi:10.1180/minmag.2015.079.5.16
Localities for Ilirneyite
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).
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.
All localities listed without proper references should be considered as questionable.
Russia (TL) | |
| Hålenius et al. (2015) +1 other reference |
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Sentyabr’skoe deposit, Ilirney ore district, Chaunskii District, Chukotka Autonomous Okrug, Russia