Ilinskite
A valid IMA mineral species
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About Ilinskite
Formula:
(Na,K)Cu5(SeO3)2O2Cl3
Colour:
Emerald green
Lustre:
Vitreous
Hardness:
1½
Specific Gravity:
4.08 (Calculated)
Crystal System:
Orthorhombic
Name:
Named in honor of Georgiy Alekseyevich Ilinskiy (Георгий Алексеевич Ильинский) (1927–1996), mineralogist with St. Petersburg University.
Co-Type Localities:
ⓘ Second scoria cone, Northern Breakthrough (North Breach), Great Fissure eruption (Main Fracture), Tolbachik Volcanic field, Milkovsky District, Kamchatka Krai, Russia
ⓘ Glavnoye fumarole, Southern Breakthrough (South Breach), Great Fissure eruption (Main Fracture), Tolbachik Volcanic field, Milkovsky District, Kamchatka Krai, Russia
ⓘ Glavnoye fumarole, Southern Breakthrough (South Breach), Great Fissure eruption (Main Fracture), Tolbachik Volcanic field, Milkovsky District, Kamchatka Krai, Russia
Unique Identifiers
Mindat ID:
7007
Long-form identifier:
mindat:1:1:7007:8
IMA Classification of Ilinskite
Approved
IMA Formula:
NaCu2+5O2(Se4+O3)2Cl3
Approval year:
1996
First published:
1997
Classification of Ilinskite
4.JG.20
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates
G : Selenites 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
G : Selenites with additional anions, without 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 |
|---|---|---|
| Isk | 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 Ilinskite
Vitreous
Transparency:
Transparent
Colour:
Emerald green
Streak:
Light green
Hardness:
1½ on Mohs scale
Hardness:
VHN2=10 kg/mm2 - Vickers
Tenacity:
Brittle
Cleavage:
Perfect
{100}
{100}
Density:
4.08 g/cm3 (Calculated)
Optical Data of Ilinskite
Type:
Biaxial (-)
RI values:
nα = 1.845(5) nβ = 1.965 - 1.968 nγ = 1.975(5)
2V:
Measured: 20° , Calculated: 24° to 30°
Max. Birefringence:
δ = 0.130
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. 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 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. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
Surface Relief:
Moderate
Dispersion:
dispersion not observed
Optical Extinction:
X = a; Y = c; Z = b.
Pleochroism:
Visible
Comments:
X = Z = green; Y = yellow-green.
Chemistry of Ilinskite
Mindat Formula:
(Na,K)Cu5(SeO3)2O2Cl3
Element Weights:
Crystallography of Ilinskite
Crystal System:
Orthorhombic
Class (H-M):
mmm(2/m2/m2/m) - Dipyramidal
Space Group:
Pnma
Cell Parameters:
a = 17.769(7) Å, b = 6.448(3) Å, c = 10.522(4) Å
Ratio:
a:b:c = 2.756 : 1 : 1.632
Unit Cell V:
1205.6 ų
Z:
4
Morphology:
Forms include {010}, {100}, {110}, {170}, {140}, {130}, {250}, {120}, {450}, {210}, {310}, {101}, {111}, {121}, {131}, {141}, {021}, {212}, {221}.
Comment:
Pbnm
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 5.24 Å | (100) |
| 8.84 Å | (60) |
| 3.251 Å | (40) |
| 2.955 Å | (27) |
| 2.626 Å | (25) |
| 2.513 Å | (12) |
| 9.01 Å | (10) |
Comments:
Tolbachik volcano, Russia. Data from the type description.
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 45a : [Sulfates, arsenates, selenates, antimonates] | |
| 45b : [Other oxidized fumarolic minerals] |
Type Occurrence of Ilinskite
Co-Type Localities:
ⓘ Second scoria cone, Northern Breakthrough (North Breach), Great Fissure eruption (Main Fracture), Tolbachik Volcanic field, Milkovsky District, Kamchatka Krai, Russia
ⓘ Glavnoye fumarole, Southern Breakthrough (South Breach), Great Fissure eruption (Main Fracture), Tolbachik Volcanic field, Milkovsky District, Kamchatka Krai, Russia
ⓘ Glavnoye fumarole, Southern Breakthrough (South Breach), Great Fissure eruption (Main Fracture), Tolbachik Volcanic field, Milkovsky District, Kamchatka Krai, Russia
General Appearance of Type Material:
The mineral forms tabular crystals, elongate [001], flattened on (010), up to 0.35 mm long and 0.05 mm thick.
Place of Conservation of Type Material:
Type material is in the Mining Museum of the Saint Petersburg Mining Institute, and in the Museum of the Mineralogy Department of the Saint Petersburg State University, Russia.
Geological Setting of Type Material:
Fumarole with a temperature of 200–230°C.
Associated Minerals at Type Locality:
Synonyms of Ilinskite
Other Language Names for Ilinskite
Related Minerals - Strunz-mindat Grouping
| 4.JG. | Prewittite | KPb1.5ZnCu6(SeO3)2O2Cl10 |
| 4.JG. | Masaitisite | KCu5O2(SeO3)2Cl3 |
| 4.JG. | Wangkuirenite | Pb3Cl2(SeO3)2 |
| 4.JG. | Guangyuanite | Pb3Cl3(Se4+O3)(OH) |
| 4.JG.05 | Georgbokiite | Cu5(SeO3)2O2Cl2 |
| 4.JG.05 | Parageorgbokiite | Cu5(SeO3)2O2Cl2 |
| 4.JG.10 | Chloromenite | Cu9(SeO3)4O2Cl6 |
| 4.JG.15 | Sofiite | Zn2(SeO3)Cl2 |
| 4.JG.25 | Francisite | Cu3Bi(SeO3)2O2Cl |
| 4.JG.30 | Derriksite | Cu4(UO2)(SeO3)2(OH)6 |
| 4.JG.35 | Burnsite | KCdCu2+7(SeO3)2O2Cl9 |
| 4.JG.40 | Allochalcoselite | Cu+PbCu2+5(SeO3)2Cl5O2 |
| 4.JG.45 | Nicksobolevite | Cu7(SeO3)2O2Cl6 |
| 4.JG.50 | Plumboselite | Pb3O2(SeO3) |
| 4.JG.55 | Sarrabusite | Pb5CuCl4(SeO3)4 |
Other Information
Notes:
Soluble in dilute acids
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 Ilinskite
mindat.org URL:
https://www.mindat.org/min-7007.html
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Please feel free to link to this page.
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References for Ilinskite
Reference List:
Jambor, John L., Grew, Edward S., Roberts, Andrew C. (1998) New mineral names. American Mineralogist, 83 (1) 185-189
Krivovichev, Sergey V., Filatov, Stanislav K., Vergasova, Lidiya P. (2013) The crystal structure of ilinskite, NaCu5O2(SeO3)2Cl3, and review of mixed-ligand CuOmCln coordination geometries in minerals and inorganic compounds. Mineralogy and Petrology, 107 (2) 235-242 doi:10.1007/s00710-012-0238-2
Kovrugin, Vadim M., Siidra, Oleg I., Colmont, Marie, Mentré, Olivier, Krivovichev, Sergey V. (2015) Emulating exhalative chemistry: synthesis and structural characterization of ilinskite, Na[Cu5O2](SeO3)2Cl3, and its K-analogue. Mineralogy and Petrology, 109 (4) 421-430 doi:10.1007/s00710-015-0369-3
Localities for Ilinskite
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.
Russia | |
| Pekov (1998) |
| DAN (1997) +2 other references |
| Pekov (1998) |
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Great Fissure eruption, Tolbachik Volcanic field, Milkovsky District, Kamchatka Krai, Russia