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Kyzylkumite

A valid IMA mineral species
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02280670017271924459471.jpg
Kyzylkumite

Koscheka U deposit, Auminzatau Mountains, Central Kyzylkum Region, Navoiy, Uzbekistan
01107730017775815251999.jpg
Kyzylkumite

Koscheka U deposit, Auminzatau Mountains, Central Kyzylkum Region, Navoiy, Uzbekistan
07007930017271924487912.jpg
Kyzylkumite, etc.

Srednyaya Padma mine, Zaonezhie peninsula, Medvezhyegorsky District, Republic of Karelia, Russia
02280670017271924459471.jpg
Kyzylkumite

Koscheka U deposit, Auminzatau Mountains, Central Kyzylkum Region, Navoiy, Uzbekistan
02402740017772142318182.jpg
Kyzylkumite

Koscheka U deposit, Auminzatau Mountains, Central Kyzylkum Region, Navoiy, Uzbekistan
07007930017271924487912.jpg
Kyzylkumite, etc.

Srednyaya Padma mine, Zaonezhie peninsula, Medvezhyegorsky District, Republic of Karelia, Russia
02280670017271924459471.jpg
Kyzylkumite

Koscheka U deposit, Auminzatau Mountains, Central Kyzylkum Region, Navoiy, Uzbekistan
01107730017775815251999.jpg
Kyzylkumite

Koscheka U deposit, Auminzatau Mountains, Central Kyzylkum Region, Navoiy, Uzbekistan
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About KyzylkumiteHide

04175790017271924547495.jpg
Kyzylkum desert, Uzbekistan
Formula:
V3+Ti2O5(OH)
Colour:
Black
Lustre:
Vitreous, Resinous
Specific Gravity:
3.75
Crystal System:
Monoclinic
Name:
Named after the Kyzylkum region, Uzbekistan that includes the type locality. The Kyzylkum is the 15th largest desert in the world.
Compare Unnamed (Ti-V oxide), Unnamed (Vanadium Titanium Oxide 2), Unnamed (Complex Be-V-Ti Oxide) and Unnamed (Fe-Sn Oxide) (reported to be a member of the "kyzylkumite group".


Unique IdentifiersHide

Mindat ID:
2304
Long-form identifier:
mindat:1:1:2304:3

IMA Classification of KyzylkumiteHide

Classification of KyzylkumiteHide

Strunz-mindat (2026):
4.CB.75

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
Dana 8th ed.:
8.4.1.3

8 : MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
4 : A2B3O9
Hey's CIM Ref.:
7.12.13

7 : Oxides and Hydroxides
12 : Oxides of V, Nb and Ta

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference for Standard
KyzIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of KyzylkumiteHide

Lustre:
Vitreous, Resinous
Transparency:
Opaque
Colour:
Black
Density:
3.75 g/cm3 (Measured)    

Optical Data of KyzylkumiteHide

Anisotropism:
Distinct
Reflectivity:
WavelengthR1 (%)R2 (%)
440nm14.7%15.8%
460nm14.6%15.7%
480nm14.5%15.7%
500nm14.5%15.8%
520nm14.6%15.8%
540nm14.7%16.0%
560nm14.8%16.2%
580nm14.8%16.2%
600nm15.0%16.3%
620nm15.1%16.4%
640nm15.2%16.5%
660nm15.2%16.5%


Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 16.5%.
R1 shown in black, R2 shown in red

Chemistry of KyzylkumiteHide

Mindat Formula:
V3+Ti2O5(OH)
Element Weights:
Element% weight
O39.395 %
Ti39.287 %
V20.905 %
H0.414 %

Calculated from ideal end-member formula.
Elements listed:
H, O, Ti, V - search for minerals with similar chemistry

Crystallography of KyzylkumiteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Setting:
P21/c
Cell Parameters:
a = 8.4787(1) Å, b = 4.5624(1) Å, c = 10.0330(1) Å
β = 93.174(1)°
Ratio:
a:b:c = 1.858 : 1 : 2.199
Unit Cell V:
387.51 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Occurs in grains to 0.2 mm.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0019815KyzylkumiteArmbruster T, Lazic B, Reznitsky L Z, Sklyarov E V (2013) Kyzylkumite, Ti2V3+O5(OH): new structure type, modularity and revised formula Mineralogical Magazine 77 33-442013Sludyanka complex, South Baikal, Russia0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
2.92 Å(100)
3.70 Å(80)
1.682 Å(65)
1.650 Å(55)
2.60 Å(50)
1.692 Å(50)
2.192 Å(48)
Comments:
Koscheka deposit, Uzbekistan. Data from the type description.

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
High-? alteration and/or metamorphism
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12])

Type Occurrence of KyzylkumiteHide

Type Locality:
ⓘ Koscheka U deposit, Auminzatau Mountains, Central Kyzylkum Region, Navoiy, Uzbekistan
General Appearance of Type Material:
Grains, 0.01-0.2 mm long, with a prismatic habit, sometimes with pyramidal terminations and striations along the elongation.
Place of Conservation of Type Material:
Mineralogical Museum, St. Petersburg University, Russia, 17408.
Mining Institute, St. Petersburg, Russia, 1197/1.
Geological Setting of Type Material:
In fine veinlets in quartziferous, uranium-bearing schists.
Associated Minerals at Type Locality:
Chlorite GroupPyriteRutile
Reference:
Smyslova, I.G., Komkov, A.I., Pavshukov, V.V., Kuznetsova, N.V. (1981) Kyzylkumite, V2Ti3O9, a new mineral of vanadium and titanium of a group of complex oxides. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva: 110(5): 607-612.

Synonyms of KyzylkumiteHide

Other Language Names for KyzylkumiteHide

Common AssociatesHide

Associations Based on Photo Data:
2 photos of Kyzylkumite associated with DolomiteCaMg(CO3)2
2 photos of Kyzylkumite associated with VolborthiteCu3(V2O7)(OH)2 · 2H2O
2 photos of Kyzylkumite associated with MalachiteCu2(CO3)(OH)2

Related Minerals - Strunz-mindat GroupingHide

4.CB.Magnesiohögbomite-6N12SMg5Al11TiO23(OH)Trig. 3m(32/m) : R3m
4.CB.KidoditeBaMg2Fe16O27Hex. 6/mmm(6/m2/m2/m) : P63/mmc
4.CB.Ferrohögbomite-2N2S[(Fe2+,Mg,Zn,Al)3(Al,Ti,Fe3+)8O15(OH)]2Hex. 6mm : P63mc
4.CB.Zhenruite(MoO3)2 · H2OMon. 2/m : P21/m
4.CB.FuyuaniteMg7Nb6O18(OH)8Trig. 3 : P3
4.CB.VirgilluethiteMoO3 · H2OMon. 2/m : P21/b
4.CB.Pengite(Pb8Sb3+3)Σ11Sb5+9O35Trig. 3m(32/m) : R3m
4.CB.05BrizziiteNaSb5+O3Trig. 3 : R3
4.CB.05TistariteTi3+2O3Trig. 3m(32/m) : R3c
4.CB.05HematiteFe2O3Trig. 3m(32/m) : R3c
4.CB.05EcandrewsiteZnTiO3Trig. 3 : R3
4.CB.05MelanostibiteMn2+2Fe3+Sb5+O6Trig. 3 : R3
4.CB.05'UM1998-11-O-AuHSb'Au+2Sb3+O2(OH)
4.CB.05KarelianiteV3+2O3Trig. 3m(32/m) : R3c
4.CB.05CorundumAl2O3Trig. 3m(32/m) : R3c
4.CB.05EskolaiteCr2O3Trig. 3m(32/m) : R3c
4.CB.05GeikieliteMgTiO3Trig. 3 : R3
4.CB.05AkimotoiteMgSiO3Trig. 3 : R3
4.CB.05'Unnamed (Fe-Cr Oxide)'FeCrO3Trig. 3 : R3
4.CB.05'Auroantimonate'AuSbO3
4.CB.05HemleyiteFe2+SiO3Trig. 3 : R3
4.CB.05IlmeniteFe2+TiO3Trig. 3 : R3
4.CB.05PyrophaniteMn2+TiO3Trig. 3 : R3
4.CB.10Bixbyite-(Fe)(Fe,Mn)2O3Iso.
4.CB.10Bixbyite-(Mn)Mn3+2O3Iso. m3(2/m3) : Ia3
4.CB.10AvicenniteTl3+2O3Iso. m3(2/m3) : Ia3
4.CB.15ArmalcoliteMgTi4+2O5Orth. mmm(2/m2/m2/m)
4.CB.15FerropseudobrookiteFe2+Ti4+2O5Orth. mmm(2/m2/m2/m) : Cmcm
4.CB.15GriffiniteAl2Ti4+O5Orth. mmm(2/m2/m2/m) : Cmcm
4.CB.15Pseudobrookite Group
4.CB.15SassiteTi3+2Ti4+O5Orth. mmm(2/m2/m2/m) : Cmcm
4.CB.15PseudobrookiteFe3+2Ti4+O5Orth. mmm(2/m2/m2/m) : Cmcm
4.CB.20Zincovelesite-6N6SZn3(Fe3+,Mn3+,Al,Ti)8O15(OH)Trig. 3m(32/m) : P3m1
4.CB.20Magnesiohögbomite-2N4S(Mg8.43Fe2+1.57)Σ=10Al22Ti4+2O46(OH)2Hex. 6mm : P63mc
4.CB.20Magnesiobeltrandoite-2N3S(Mg6Al2)(Al18Fe3+2)O38(OH)2 Trig. 3m : P3m1
4.CB.20Zincohögbomite-2N6S[(Zn,Mg)7(Al,Fe3+,Ti)16O31(OH)]2Hex. 6mm : P63mc
4.CB.20Magnesiohögbomite-6N6S[(Mg,Fe2+)3(Al,Ti,Fe3+)8O15(OH)]6Trig. 3m(32/m) : R3m
4.CB.20Magnesiohögbomite-2N3S[(Mg,Fe2+,Zn)4(Al,Ti,Fe3+)10O19(OH)]2Trig. 3m(32/m) : P31m
4.CB.20Magnesiohögbomite-2N2S[(Mg,Fe2+)3[Al7(Ti,Fe3+)]O15(OH)]2Hex. 6mm : P63mc
4.CB.20'Ferrohögbomite-6N12S'[(Fe2+,Mg,Zn)5(Al,Ti,Fe3+)12O23(OH)]6Trig. 3m(32/m) : R3m
4.CB.20Zincohögbomite-2N2S[(Zn,Al,Fe2+)3(Al,Fe3+,Ti)8O15(OH)]2Hex. 6mm : P63mc
4.CB.25KleberiteFeTi6O11(OH)5Mon. 2/m : P21/b
4.CB.25PseudorutileFe3+2Ti4+3O9Hex. 622 : P6322
4.CB.30OxyvaniteV3+2V4+O5Mon. 2/m : B2/b
4.CB.30BerdesinskiiteV3+2TiO5Mon.
4.CB.30KaitianiteTi3+2Ti4+O5Mon. 2/m : B2/b
4.CB.35MachiiteAl2Ti3O9Mon. 2/m : B2/b
4.CB.35Vestaite(Ti4+Fe2+)Ti4+3O9Mon. 2/m : B2/b
4.CB.35Olkhonskite(Cr,V)2Ti3O9Mon.
4.CB.35SchreyeriteV3+2Ti4+3O9Mon. 2/m : B2/b
4.CB.40Zincorinmanite-(Zn)Zn2Sb2(Fe3+4Zn2)O14(OH)2Hex. 6mm : P63mc
4.CB.40MajindeiteMg2Mo3O8Hex. 6mm : P63mc
4.CB.40AlmagreraiteCuZnMn4+3O8Orth. mm2 : Pmn21
4.CB.40KamiokiteFe2Mo3O8Hex. 6mm : P63mc
4.CB.40NolaniteV3+8Fe3+2O14(OH)2Hex. 6mm : P63mc
4.CB.40IseiteMn2Mo3O8Hex. 6mm : P63mc
4.CB.40RinmaniteZn2Sb2Mg2Fe4O14(OH)2Hex. 6 : P63
4.CB.45StibioclaudetiteAsSbO3Mon. 2/m : P21/m
4.CB.45ClaudetiteAs2O3Mon. 2/m
4.CB.50SenarmontiteSb2O3Iso. m3m(4/m32/m) : Fd3m
4.CB.50ArsenoliteAs2O3Iso. m3m(4/m32/m) : Fd3m
4.CB.55ValentiniteSb2O3Orth. mmm(2/m2/m2/m) : Pccn
4.CB.60BismiteBi2O3Mon. 2/m : P21/b
4.CB.65SphaerobismoiteBi2O3Tet.
4.CB.70SilléniteBi12SiO20Iso. 23 : I23
4.CB.80'Tietaiyangite'Fe3+4Fe2+TiO9Hex.
4.CB.85LiuiteFeTiO3Orth. mmm(2/m2/m2/m) : Pnma
4.CB.90LuogufengiteFe2O3Orth. mm2 : Pna21
4.CB.95WangdaodeiteFeTiO3Trig. 3m : R3c

Other InformationHide

Thermal Behaviour:
When heated to 320-390°C, the mineral transforms into rutile.
Notes:
Insoluble in 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 KyzylkumiteHide

References for KyzylkumiteHide

Reference List:
Smyslova, I.G., Komkov, A.I., Pavshukov, V.V., Kuznetsova, N.V. (1981) Kyzylkumite, V2Ti3O9, a new mineral of vanadium and titanium of a group of complex oxides. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva: 110(5): 607-612.
Fleischer, Michael; Chao, George Y.; Mandarino, Joseph A. (1982) New mineral names. American Mineralogist, 67 (7-8). p.854-860. pp.855-856
Koneva, A. A. (2002) Cr–V oxides in metamorphic rocks, Lake Baikal, Russia. Neues Jahrbuch für Mineralogie - Monatshefte, 2002 (12) 541-550 doi:10.1127/0028-3649/2002/2002-0541[as unnamed phase]
(2005) Kyzylkumite. Handbook of Mineralogy. Mineralogical Society of America
Raade, Gunnar, Balić-Žunić, T. (2006) The crystal structure of (Be, )(V,Ti)3O6, a mineral related to kyzylkumite. The Canadian Mineralogist, 44 (5) 1147-1158 doi:10.2113/gscanmin.44.5.1147
Reznitskya, L.Z., Suvorova, L.F., Ushchapovskaya, Z.F., Murashko, M.N., Barash, I.G. (2013) Kyzylkumite: a finding in the Southern Baikal Region, Russia and refinement of its crystal chemical formula. Geology of Ore Deposits: 55: 676-685.
Armbruster, T., Lazic, B., Reznitsky, L. Z., Sklyarov, E. V. (2013) Kyzylkumite, Ti2V3+O5(OH): new structure type, modularity and revised formula. Mineralogical Magazine, 77 (1) 33-44 doi:10.1180/minmag.2013.077.1.04
Резницкий, Л., Суворова, Л., Ущаповская, З., Мурашко, М., & Бараш, И. (2015). Уточнение Данных О Кызылкумите Из Места Его Первоначального Обнаружения На Основе Изучения Котипного Материала. Записки Российского Минералогического Общества, 144(2), 61-70. (Improved data on kyzylkumite from its type-locality on the base of studied co-type material)

Localities for KyzylkumiteHide

Showing 5 localities.

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.
Hide all sections | Show all sections

Locality ListHide

- 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.
Finland
 
  • North Ostrobothnia
    • Raahe
Sergeeva et al. (2011, February) +1 other reference
Russia
 
  • Irkutsk Oblast
    • Slyudyansky District
      • Slyudyanka
Reznitsky et al. (2013)
  • Murmansk Oblast
    • Pechengsky District
      • Pechenga Ni-Cu ore field
Kompanchenko et al. (2018) +1 other reference
  • Republic of Karelia
    • Medvezhyegorsky District
      • Zaonezhie peninsula
Pavel M. Kartashov analytical data 2012
Uzbekistan (TL)
 
  • Navoiy
    • Central Kyzylkum Region
      • Auminzatau Mountains
Smyslova et al. (1981) +2 other references
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