Yushkinite (original) (raw)
A valid IMA mineral species
About YushkiniteHide
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Formula:
(Mg,Al)V4+S2(OH)2
Name:
Named in honor of Nikolai Pavlovich Yushkin (Николай Павлович Юшкин) (20 May 1936, Kalinin region, USSR - 17 September 2012, Syktyvkar, Russia), mineralogist at the Institute of Geology of the Komi Scientific Center of the Ural Institute of Economics, head of the Department of Geology of Syktyvkar State University. He was interested in the mineral resources of the northern European part of Russia and the Urals. He served as vice-president of both the International Mineralogical Association and the Russian Mineralogical Society.
The structure is a "commensurate combination of brucite and sulfide layers".
Unique IdentifiersHide
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Long-form identifier:
mindat:1:1:4379:9
c67c01d5-549f-4814-a791-a53a7057ddc3
IMA Classification of YushkiniteHide
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IMA Formula:
(Mg,Al)(OH)2VS2
Type description reference:
Classification of YushkiniteHide
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2.FD.30
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
F : Sulfides of arsenic, alkalies; sulfides with halide, oxide, hydroxide, H2O
D : With O, OH, H2O
2.14.3.2
2 : SULFIDES
14 : Hydroxysulfides and Hydrated Sulfides
Mineral SymbolsHide
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As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Yus | 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 YushkiniteHide
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Comment:
Strong copper magenta and orange red tarnish
Density:
2.94(2) g/cm3 (Measured) 3.00 g/cm3 (Calculated)
Optical Data of YushkiniteHide
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Anisotropism:
Strong, orange-red with weak lilac tint in isotropic sections, red-lilac to pinkish dark gray in anisotropic sections.
Reflectivity:
| Wavelength | R1 | R2 | imR1 | imR2 |
|---|---|---|---|---|
| 400nm | 21.1% | 10.1% | 7.01% | 1.91% |
| 420nm | 20.8% | 10.5% | 7.30% | 1.94% |
| 440nm | 18.7% | 10.6% | 6.89% | 1.97% |
| 460nm | 17.0% | 10.4% | 6.25% | 1.95% |
| 470nm | 16.4% | 10.5% | 5.95% | 1.93% |
| 480nm | 15.5% | 10.3% | 5.56% | 1.94% |
| 500nm | 14.3% | 10.5% | 5.08% | 1.96% |
| 520nm | 13.8% | 10.3% | 5.24% | 1.95% |
| 540nm | 14.4% | 10.3% | 5.84% | 1.90% |
| 546nm | 14.6% | 10.3% | 6.24% | 1.91% |
| 560nm | 15.4% | 10.4% | 7.07% | 1.88% |
| 580nm | 17.4% | 10.2% | 8.96% | 1.84% |
| 589nm | 18.4% | 10.3% | 9.66% | 1.82% |
| 600nm | 19.8% | 10.4% | 10.8% | 1.88% |
| 620nm | 22.3% | 10.4% | 12.6% | 1.94% |
| 640nm | 24.8% | 10.1% | 15.0% | 1.93% |
| 650nm | 26.7% | 10.4% | 15.3% | 1.91% |
| 660nm | 27.7% | 10.0% | 16.1% | 1.85% |
| 680nm | 29.1% | 10.3% | 17.5% | 1.91% |
| 700nm | 30.4% | 10.5% | 18.3% | 1.94% |
| 720nm | 32.3% | 10.9% | 18.7% | 1.90% |
| 740nm | 31.8% | 10.9% | 18.2% | 2.06% |
| 760nm | 31.8% | 10.3% | 18.0% | 2.18% |
| 780nm | 31.6% | 11.2% | 17.5% | 1.90% |
| 800nm | 29.6% | 10.2% | 16.9% | 1.88% |
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 32.3%.
R1 shown in black, R2 shown in red, imR1 shown in green, imR2 shown in blue
Comments:
Reflectance data from Moëlo et al. (1999).
Chemistry of YushkiniteHide
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Mindat Formula:
(Mg,Al)V4+S2(OH)2
Crystallography of YushkiniteHide
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Class (H-M):
3_m_ _(_32/m ) - Hexagonal Scalenohedral
Cell Parameters:
a = 3.25 Å, c = 11.40 Å
Unit Cell V:
104.28 ų (Calculated from Unit Cell)
X-Ray Powder DiffractionHide
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Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 5.68 Å | (100) |
| 2.76 Å | (60) |
| 1.575 Å | (60) |
| 1.596 Å | (40) |
| 11.4 Å | (30) |
| 1.534 Å | (30) |
| 1.386 Å | (30) |
Geological EnvironmentHide
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Type Occurrence of YushkiniteHide
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Place of Conservation of Type Material:
Komi Branch of Academy of Sciences, Syktyvkar, Russia.
Mining Institute, St. Petersburg, Russia, 1501/1.
Institute of Geology of Ore Deposits, Petrography, Mineralogy and Geochemistry, Moscow, Russia.
A.E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia, 84284.
Reference:
Makeev, A.B., Evstigneeva, T.L., Troneva, N.V., Vyalsov, L.N., Gorshkov, A.I., Trubkin, N.V. (1984) Yushkinite V1-xS·n[(Mg,Al)(OH)2] - a new mineral. Mineralogiceskij Zhurnal: 6: 91-98.
Synonyms of YushkiniteHide
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Other Language Names for YushkiniteHide
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Relationship of Yushkinite to other SpeciesHide
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Other Members of this group:
| Ekplexite | (Nb,Mo,W)S2 · (Mg1-xAlx)(OH)2+x | Trig. |
|---|---|---|
| Ferrotochilinite | Fe2+6(Fe2+,Mg)5S6(OH)10 | Mon. |
| Ferrovalleriite | 2(Fe,Cu)S · 1.5Fe(OH)2 | Trig. |
| Haapalaite | (Fe2+,Ni)2(Mg,Fe2+)1.61S2(OH)3.22 | Hex. |
| Tochilinite | Fe2+5-6(Mg,Fe2+)5S6(OH)10 | Mon. |
| Valleriite | (Fe2+,Cu)4(Mg,Al)3S4(OH,O)6 | Trig. |
Related Minerals - Strunz-mindat GroupingHide
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| 2.FD. | Ferrovalleriite | 2(Fe,Cu)S · 1.5Fe(OH)2 | Trig. |
|---|---|---|---|
| 2.FD.05 | Kermesite | Sb2S2O | Tric. 1 : _P_1 |
| 2.FD.10 | Viaeneite | (Fe,Pb)4S8O | Mon. |
| 2.FD.20 | Erdite | NaFeS2 · 2H2O | Mon. 2/m : _B_2/b |
| 2.FD.25 | Coyoteite | NaFe3S5 · 2H2O | Tric. |
| 2.FD.30 | Haapalaite | (Fe2+,Ni)2(Mg,Fe2+)1.61S2(OH)3.22 | Hex. |
| 2.FD.30 | Valleriite | (Fe2+,Cu)4(Mg,Al)3S4(OH,O)6 | Trig. |
| 2.FD.30 | Ekplexite | (Nb,Mo,W)S2 · (Mg1-xAlx)(OH)2+x | Trig. |
| 2.FD.35 | Tochilinite | Fe2+5-6(Mg,Fe2+)5S6(OH)10 | Mon. |
| 2.FD.35 | Ferrotochilinite | Fe2+6(Fe2+,Mg)5S6(OH)10 | Mon. |
| 2.FD.35 | Kaskasite | (Mo,Nb)S2 · (Mg1-xAlx)(OH)2+x | Trig. |
| 2.FD.35 | Manganokaskasite | (Mo,Nb)S2 · (Mn1-xAlx)(OH)2+x | Trig. |
| 2.FD.40 | Wilhelmramsayite | Cu3FeS3 · 2H2O | Orth. m m m _(_2/_m_2/_m_2/m ) : P m m m |
| 2.FD.45 | Vyalsovite | FeCaAlS(OH)5 | Orth. |
| 2.FD.50 | Bazhenovite | Ca8S2(S3)(S2O3)(OH)12 · 20H2O | Mon. 2/m : _P_21/b |
| 2.FD.55 | UM2004-56-OS:BiCuPb | PbCu4Bi4S2(O,OH,H2O)16 (?) | Tet. |
Other InformationHide
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Notes:
Becomes dark and decomposes in concentrated HCl and HNO3; quickly becomes brown in 10% FeCl2.
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 YushkiniteHide
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References for YushkiniteHide
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Reference List:
Localities for YushkiniteHide
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This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the 
symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
Locality ListHide
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- 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.
| Russia (TL) | |
|---|---|
| Nenets Autonomous Okrug Yugorskii Peninsula Pai-Khoi Range (Paikhoi; Pay Khoy) Middle Silova-Yakha River ⓘ Yushkinite gorge (TL) | Geology of Ore Deposits Volume 50 +2 other references |