Olkhonskite (original) (raw)
A valid IMA mineral species
About OlkhonskiteHide
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Specific Gravity:
4.48 (Calculated)
Crystal System:
Monoclinic
Name:
Named for the type locality, Olkhon Gate, Russia. Olkhon Gate is a narrow (1.5-2 km) in Lake Baikal between Olkhon Island and the western shore of Baikal.
Unique IdentifiersHide
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Long-form identifier:
mindat:1:1:2985:4
33bf8198-d9b6-4338-8b63-bf31f67e28aa
IMA Classification of OlkhonskiteHide
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Type description reference:
Classification of OlkhonskiteHide
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4.CB.35
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
C : Metal: Oxygen = 2: 3,3: 5, and similar
B : With medium-sized cations
8.4.1.2
8 : MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
4 : A2B3O9
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 |
|---|---|---|
| Olk | 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 OlkhonskiteHide
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Hardness:
VHN65=1412 kg/mm2 - Vickers
Density:
4.48 g/cm3 (Calculated)
Optical Data of OlkhonskiteHide
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Reflectivity:
| Wavelength | R1 | R2 |
|---|---|---|
| 440nm | 19.6% | 22.5% |
| 460nm | 18.2% | 21.1% |
| 470nm | 18.1% | 20.1% |
| 480nm | 18.2% | 20.1% |
| 500nm | 18.2% | 20.3% |
| 520nm | 18.4% | 20.1% |
| 540nm | 18.5% | 20.0% |
| 546nm | 18.5% | 19.9% |
| 560nm | 18.5% | 20.3% |
| 580nm | 18.4% | 20.2% |
| 589nm | 18.4% | 19.8% |
| 600nm | 18.4% | 20.1% |
| 620nm | 18.4% | 20.5% |
| 640nm | 18.5% | 21.0% |
| 650nm | 18.6% | 20.0% |
| 660nm | 19.5% | 21.3% |
| 680nm | 20.7% | 22.4% |
| 700nm | 20.8% | 22.6% |
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 22.6%.
R1 shown in black, R2 shown in red
Colour in reflected light:
Light gray
Chemistry of OlkhonskiteHide
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Mindat Formula:
(Cr,V)2Ti3O9
Crystallography of OlkhonskiteHide
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Crystal System:
Monoclinic
Cell Parameters:
a = 7.03(1) Å, b = 5.02(1) Å, c = 18.83(1) Å
β = 119.60(5)°
Ratio:
a:b:c = 1.4 : 1 : 3.751
Unit Cell V:
577.80 ų (Calculated from Unit Cell)
Comment:
Point Group: 2/m or m.; Space Group: C2/c, Cc, P21/c, P2/c, or P c. (by analogy to schreyerite)
X-Ray Powder DiffractionHide
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Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 2.75 Å | (100) |
| 1.386 Å | (100) |
| 2.88 Å | (70) |
| 2.43 Å | (70) |
| 1.426 Å | (70) |
| 2.14 Å | (50) |
| 1.660 Å | (50) |
Comments:
Ol'khonskiye Vorota Strait, Lake Baikal area, Russia. Data from the type description.
Geological EnvironmentHide
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Type Occurrence of OlkhonskiteHide
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General Appearance of Type Material:
Platy crystals, to 150 µm, included in rutile.
Place of Conservation of Type Material:
A.E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia, r1001.
Geological Setting of Type Material:
Associated Minerals at Type Locality:
Reference:
Koneva, A.A., Piskunova, L.F., Ushchapovskaya, Z.F., Konev, A.A. (1994) Olkhonskite (Cr, V)2Ti3O9 — a new mineral from Priol'khonie. Zapiski Vserossijskogo Mineralogicheskogo Obshchestva: 123(4): 98-103.
Synonyms of OlkhonskiteHide
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Other Language Names for OlkhonskiteHide
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Common AssociatesHide
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Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat GroupingHide
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| 4.CB. | Ferrohögbomite-2N2S | [(Fe2+,Mg,Zn,Al)3(Al,Ti,Fe3+)8O15(OH)]2 | Hex. 6_m_ m : P_63_m c |
|---|---|---|---|
| 4.CB. | Magnesiohögbomite-6N12S | Mg5Al11TiO23(OH) | Trig. 3_m_ _(_32/m ) : R_3_m |
| 4.CB. | Zhenruite | (MoO3)2 · H2O | Mon. 2/m : _P_21/m |
| 4.CB. | Pengite | (Pb8Sb3+3)Σ11Sb5+9O35 | Trig. 3_m_ _(_32/m ) : R_3_m |
| 4.CB. | Virgilluethite | MoO3 · H2O | Mon. 2/m : _P_21/b |
| 4.CB. | Oboniobite | Mg4Nb2O9 | Trig. 3_m_ _(_32/m ) : _P_3_c_1 |
| 4.CB.05 | Brizziite | NaSb5+O3 | Trig. 3 : _R_3 |
| 4.CB.05 | Corundum | Al2O3 | Trig. 3_m_ _(_32/m ) : R_3_c |
| 4.CB.05 | Ecandrewsite | (Zn,Fe2+,Mn2+)TiO3 | Trig. 3 : _R_3 |
| 4.CB.05 | Eskolaite | Cr2O3 | Trig. 3_m_ _(_32/m ) : R_3_c |
| 4.CB.05 | Geikielite | MgTiO3 | Trig. 3 : _R_3 |
| 4.CB.05 | Hematite | Fe2O3 | Trig. 3_m_ _(_32/m ) : R_3_c |
| 4.CB.05 | Ilmenite | Fe2+TiO3 | Trig. 3 : _R_3 |
| 4.CB.05 | Karelianite | V3+2O3 | Trig. 3_m_ _(_32/m ) : R_3_c |
| 4.CB.05 | Melanostibite | Mn2+2Fe3+Sb5+O6 | Trig. 3 : _R_3 |
| 4.CB.05 | Pyrophanite | Mn2+TiO3 | Trig. 3 : _R_3 |
| 4.CB.05 | Akimotoite | (Mg,Fe2+)SiO3 | Trig. 3 : _R_3 |
| 4.CB.05 | Auroantimonate | AuSbO3 | |
| 4.CB.05 | UM1998-11-O-AuHSb | Au+2Sb3+O2(OH) | |
| 4.CB.05 | Tistarite | Ti3+2O3 | Trig. 3_m_ _(_32/m ) : R_3_c |
| 4.CB.05 | Unnamed (Fe-Cr Oxide) | FeCrO3 | Trig. 3 : _R_3 |
| 4.CB.05 | Hemleyite | (Fe2+0.48Mg0.37Ca0.04Na0.04Mn2+0.03Al0.03Cr3+0.01)sum=1.00Si1.00O3 | Trig. 3 : _R_3 |
| 4.CB.10 | Avicennite | Tl2O3 | Iso. m_3(2/m_3) : I _a_3 |
| 4.CB.10 | Bixbyite-(Mn) | Mn3+2O3 | Iso. m_3(2/m_3) : I _a_3 |
| 4.CB.10 | Bixbyite-(Fe) | (Fe,Mn)2O3 | Iso. |
| 4.CB.15 | Armalcolite | (Mg,Fe2+)Ti2O5 | Orth. m m m _(_2/_m_2/_m_2/m ) |
| 4.CB.15 | Sassite | Ti3+2Ti4+O5 | Orth. m m m _(_2/_m_2/_m_2/m ) : C m c m |
| 4.CB.15 | Pseudobrookite | Fe2TiO5 | Orth. m m m _(_2/_m_2/_m_2/m ) |
| 4.CB.15 | Ferropseudobrookite | Fe2+Ti2O5 | Orth. m m m _(_2/_m_2/_m_2/m ) : C m c m |
| 4.CB.15 | Griffinite | Al2TiO5 | Orth. m m m _(_2/_m_2/_m_2/m ) : C m c m |
| 4.CB.15 | Pseudobrookite Group | ||
| 4.CB.20 | Zincohögbomite-2N2S | [(Zn,Al,Fe2+)3(Al,Fe3+,Ti)8O15(OH)]2 | Hex. 6_m_ m : P_63_m c |
| 4.CB.20 | Zincohögbomite-2N6S | [(Zn,Mg)7(Al,Fe3+,Ti)16O31(OH)]2 | Hex. 6_m_ m : P_63_m c |
| 4.CB.20 | Magnesiohögbomite-6N6S | [(Mg,Fe2+)3(Al,Ti,Fe3+)8O15(OH)]6 | Trig. 3_m_ _(_32/m ) : R_3_m |
| 4.CB.20 | Magnesiohögbomite-2N3S | [(Mg,Fe2+,Zn)4(Al,Ti,Fe3+)10O19(OH)]2 | Trig. 3_m_ _(_32/m ) : P_31_m |
| 4.CB.20 | Magnesiohögbomite-2N2S | [(Mg,Fe2+)3[Al7(Ti,Fe3+)]O15(OH)]2 | Hex. 6_m_ m : P_63_m c |
| 4.CB.20 | Ferrohögbomite-6N12S | [(Fe2+,Mg,Zn)5(Al,Ti,Fe3+)12O23(OH)]6 | Trig. 3_m_ _(_32/m ) : R_3_m |
| 4.CB.20 | Magnesiohögbomite-2N4S | (Mg8.43Fe2+1.57)sum=10Al22Ti4+2O46(OH)2 | Hex. 6_m_ m : P_63_m c |
| 4.CB.20 | Magnesiobeltrandoite-2N3S | (Mg6Al2)(Al18Fe3+2)O38(OH)2 | Trig. 3_m_ : _P_3_m_1 |
| 4.CB.20 | Zincovelesite-6N6S | Zn3(Fe3+,Mn3+,Al,Ti)8O15(OH) | Trig. 3_m_ _(_32/m ) : _P_3_m_1 |
| 4.CB.25 | Pseudorutile | Fe2Ti3O9 | Hex. 622 : _P_6322 |
| 4.CB.25 | Kleberite | FeTi6O11(OH)5 | Mon. 2/m : _P_21/b |
| 4.CB.30 | Berdesinskiite | V3+2TiO5 | Mon. |
| 4.CB.30 | Oxyvanite | V3+2V4+O5 | Mon. 2/m : _B_2/b |
| 4.CB.30 | Kaitianite | Ti3+2Ti4+O5 | Mon. 2/m : _B_2/b |
| 4.CB.35 | Schreyerite | V3+2Ti4+3O9 | Mon. 2/m : _B_2/b |
| 4.CB.35 | Machiite | Al2Ti3O9 | Mon. 2/m : _B_2/b |
| 4.CB.35 | Vestaite | (Ti4+Fe2+)Ti4+3O9 | Mon. 2/m : _B_2/b |
| 4.CB.40 | Kamiokite | Fe2Mo3O8 | Hex. 6_m_ m : P_63_m c |
| 4.CB.40 | Nolanite | V3+8Fe3+2O14(OH)2 | Hex. 6_m_ m : P_63_m c |
| 4.CB.40 | Rinmanite | Zn2Sb2Mg2Fe4O14(OH)2 | Hex. 6 : _P_63 |
| 4.CB.40 | Iseite | Mn2Mo3O8 | Hex. 6_m_ m : P_63_m c |
| 4.CB.40 | Majindeite | Mg2Mo3O8 | Hex. 6_m_ m : P_63_m c |
| 4.CB.40 | Zincorinmanite-(Zn) | Zn2Sb2(Fe3+4Zn2)O14(OH)2 | Hex. 6_m_ m : P_63_m c |
| 4.CB.45 | Claudetite | As2O3 | Mon. 2/m |
| 4.CB.45 | Stibioclaudetite | AsSbO3 | Mon. 2/m : _P_21/m |
| 4.CB.50 | Arsenolite | As2O3 | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.CB.50 | Senarmontite | Sb2O3 | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.CB.55 | Valentinite | Sb2O3 | Orth. m m m _(_2/_m_2/_m_2/m ) : P c c n |
| 4.CB.60 | Bismite | Bi2O3 | Mon. 2/m : _P_21/b |
| 4.CB.65 | Sphaerobismoite | Bi2O3 | Tet. |
| 4.CB.70 | Sillénite | Bi12SiO20 | Iso. 23 : _I_23 |
| 4.CB.75 | Kyzylkumite | V3+Ti2O5(OH) | Mon. 2/m : _P_21/b |
| 4.CB.80 | Tietaiyangite | Fe3+4Fe2+TiO9 | Hex. |
| 4.CB.85 | Liuite | FeTiO3 | Orth. m m m _(_2/_m_2/_m_2/m ) : P n m a |
| 4.CB.90 | Luogufengite | Fe2O3 | Orth. m _m_2 : P n _a_21 |
| 4.CB.95 | Wangdaodeite | FeTiO3 | Trig. 3_m_ : R_3_c |
Other InformationHide
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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 OlkhonskiteHide
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References for OlkhonskiteHide
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Localities for OlkhonskiteHide
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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) | |
|---|---|
| Irkutsk Oblast ⓘ Ol'khonskiye Vorota Strait (Olkhon Gate) (TL) | Koneva et al. (1994) +3 other references |
| Sweden | |
| Västra Götaland County Götene Kinnekulle Thorsberg quarry ⓘ Österplana 065 meteorite (Öst 065) ? | doi: 10.1038/ncomms11851 +1 other reference |