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Kyzylkumite

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Formula:
V3+Ti2O5(OH)
Colour:
Black
Lustre:
Vitreous, Resinous
Specific Gravity:
3.75
Crystal System:
Monoclinic
Name:
After the type locality: Kyzyl-Kum, Uzbekistan.

Classification of Kyzylkumite

Approved
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
8.4.1.3

8 : MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
4 : A2B3O9
7.12.13

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

Physical Properties of Kyzylkumite

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

Optical Data of Kyzylkumite

Type:
Anisotropic

Chemical Properties of Kyzylkumite

Formula:
V3+Ti2O5(OH)
IMA Formula:
Ti2V3+O5(OH)

Crystallography of Kyzylkumite

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.

Type Occurrence of Kyzylkumite

Geological Setting of Type Material:
In fine veinlets in quartziferous, uranium-bearing schists.
Associated Minerals at Type Locality:

Synonyms of Kyzylkumite

Other Language Names for Kyzylkumite

German:Kyzylkumit
Spanish:Kyzylkumita

Related Minerals - Nickel-Strunz Grouping

4.CB.05BrizziiteNaSb5+O3
4.CB.05CorundumAl2O3
4.CB.05Ecandrewsite(Zn,Fe2+,Mn2+)TiO3
4.CB.05EskolaiteCr2O3
4.CB.05GeikieliteMgTiO3
4.CB.05HematiteFe2O3
4.CB.05IlmeniteFe2+TiO3
4.CB.05KarelianiteV3+2O3
4.CB.05MelanostibiteMn2+(Sb5+,Fe3+)O3
4.CB.05PyrophaniteMn2+TiO3
4.CB.05Akimotoite(Mg,Fe2+)SiO3
4.CB.05AuroantimonateAuSbO3
4.CB.05UM1998-11-O-AuHSbAu+2Sb3+O2(OH)
4.CB.05TistariteTi3+2O3
4.CB.10AvicenniteTl2O3
4.CB.10BixbyiteMn3+2O3
4.CB.15Armalcolite(Mg,Fe2+)Ti2O5
4.CB.15PseudobrookiteFe2TiO5
4.CB.20Zincohögbomite-2N2S[(Zn,Al,Fe2+)3(Al,Fe3+,Ti)8O15(OH)]2
4.CB.20Zincohögbomite-2N6S[(Zn,Mg)7(Al,Fe3+,Ti)16O31(OH)]2
4.CB.20Magnesiohögbomite-6N6S[(Mg,Fe2+)3(Al,Ti,Fe3+)8O15(OH)]6
4.CB.20Magnesiohögbomite-2N3S[(Mg,Fe2+,Zn)4(Al,Ti,Fe3+)10O19(OH)]2
4.CB.20Magnesiohögbomite-2N2S[(Mg,Fe2+)3[Al7(Ti,Fe3+)]O15(OH)]2
4.CB.20Ferrohögbomite-6N12S[(Fe2+,Mg,Zn)5(Al,Ti,Fe3+)12O23(OH)]6
4.CB.25PseudorutileFe2Ti3O9
4.CB.25KleberiteFeTi6O11(OH)5
4.CB.30BerdesinskiiteV3+2TiO5
4.CB.30OxyvaniteV3+2V4+O5
4.CB.35Olkhonskite(Cr,V)2Ti3O9
4.CB.35SchreyeriteV3+2Ti3O9
4.CB.40KamiokiteFe2Mo3O8
4.CB.40Nolanite(V3+,Fe3+,Fe2+,Ti)10O14(OH)2
4.CB.40RinmaniteZn2Sb2Mg2Fe4O14(OH)2
4.CB.40IseiteMn2Mo3O8
4.CB.40MajindeiteMg2Mo3O8
4.CB.45ClaudetiteAs2O3
4.CB.45StibioclaudetiteAsSbO3
4.CB.50ArsenoliteAs2O3
4.CB.50SenarmontiteSb2O3
4.CB.55ValentiniteSb2O3
4.CB.60BismiteBi2O3
4.CB.65SphaerobismoiteBi2O3
4.CB.70SilléniteBi12SiO20
4.CB.80TietaiyangiteFe3+4Fe2+TiO9

Related Minerals - Hey's Chemical Index of Minerals Grouping

7.12.1Montroseite(V3+,Fe3+)O(OH)
7.12.2 ScherbinaiteV5+2O5
7.12.3ParamontroseiteV4+O2
7.12.4HäggiteV3+V4+O2(OH)3
7.12.5DuttoniteV4+O(OH)2
7.12.6DoloresiteV4+3O4(OH)4
7.12.7LenobliteV4+2O4 · 2H2O
7.12.8NavajoiteFe3+V5+9O24 · 12H2O
7.12.9VanoxiteV4+4V5+2O13 · 8H2O
7.12.10BarianditeAl0.6(V5+,V4+)8O20 · 9H2O
7.12.11Corvusite(Na,K,Ca,Mg)2(V5+,V4+,Fe2+)8O20 · 6-10H2O
7.12.12SimplotiteCaV4+4O9 · 5H2O
7.12.14SchreyeriteV3+2Ti3O9
7.12.15BerdesinskiiteV3+2TiO5
7.12.16TivaniteV3+TiO3(OH)
7.12.17MannarditeBa(Ti4+6V3+2)O16
7.12.18KarelianiteV3+2O3
7.12.19CoulsoniteFe2+V3+2O4
7.12.20Nolanite(V3+,Fe3+,Fe2+,Ti)10O14(OH)2
7.12.21VuorelaineniteMn2+V3+2O4
7.12.22TantiteTa2O5
7.12.23Kimrobinsonite(Ta,Nb)(OH)5-2x(O,CO3)x ; x near 1.2

Related Minerals - Dana Grouping (8th Ed.)

8.4.1.1SchreyeriteV3+2Ti3O9
8.4.1.2Olkhonskite(Cr,V)2Ti3O9

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.

References for Kyzylkumite

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
American Mineralogist (1982): 67: 855-856.
Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva: 110(2): 607-612.
Koneva, A.A. (2002): N. Jb. Mineral. Mh. 2002, 541-550. [as unnamed phase]
Armbruster, T., Lazic, B., Reznitsky, L. Z., Sklyarov, E. V. (2013): Kyzylkumite, Ti2V3+O5(OH): new structure type, modularity and revised formula. Mineralogical Magazine February 77, 33-44.
Reznitskya, L.Z. et al. (2013): Kyzylkumite: a finding in the Southern Baikal Region, Russia and refinement of its crystal chemical formula. Geology of Ore Deposits, 55, 676-685.

Internet Links for Kyzylkumite

mindat.org URL:
https://www.mindat.org/min-2304.html
Please feel free to link to this page.

Localities for Kyzylkumite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Finland
 
  • Northern Finland Region
    • Vihanti
Sergeeva, N. E., Eremin, N. I., & Dergachev, A. L. (2011, February). Vanadium mineralization in ore of the Vihanti massive sulfide base-metal deposit, Finland. In Doklady Earth Sciences (Vol. 436, No. 2, pp. 210-212). SP MAIK Nauka/Interperiodica.
Uzbekistan (TL)
 
  • Kyzylkum Desert
    • Central Kyzylkum Region
      • Auminzatau Mts
Am. Min. (1982) 67, 855-856; ZVMO (1981) 110, 607-612; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
Mineral and/or Locality  
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