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Kyzylkumite

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Koscheka U deposit, Auminzatau Mts, Central Kyzylkum Region, Kyzylkum Desert, Uzbekistan
© Thomas Witzke




Formula:
V
3+
2
TiO
 
6
System:MonoclinicColour:Black
Name:After the type locality: Kyzyl-Kum, Uzbekistan.


Compare Unnamed (Complex Be-V-Ti Oxide).

Classification of Kyzylkumite

IMA status:Approved
Strunz 8th edition ID:4/C.26-30
Nickel-Strunz 10th (pending) edition ID: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 edition ID: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
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Type Occurrence of Kyzylkumite

Type Locality:Koscheka U deposit, Auminzatau Mts, Central Kyzylkum Region, Kyzylkum Desert, Uzbekistan
Year of Discovery:1981
Geological Setting of type material:In fine veinlets in quartziferous, uranium-bearing schists.
Associated Minerals at type locality:
RutilePyriteChlorite Group

Physical Properties of Kyzylkumite

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

Crystallography of Kyzylkumite

Crystal System:Monoclinic
Cell Parameters:a = 33.8Å, b = 4.57Å, c = 19.99Å
β = 93.4°
Ratio:a:b:c = 7.396 : 1 : 4.374
Unit Cell Volume:V 3,082.34 ų (Calculated from Unit Cell)
Z:18
Morphology:Occurs in grains to 0.2 mm.

Optical Data of Kyzylkumite

Type:Anisotropic

Chemical Properties of Kyzylkumite

Formula:
V
3+
2
TiO
 
6
Essential elements:O, Ti, V
All elements listed in formula:O, Ti, V
Analytical Data:Alters to rutile when heated at 320-390˚C.
Relationship of Kyzylkumite to other Species
Related Minerals - Nickel-Strunz Grouping):

- + 
4.CB.05Brizziite
NaSb
5+
 
O
 
3
4.CB.05Corundum
Al
 
2
O
 
3
4.CB.05Ecandrewsite
(Zn,Fe
2+
 
,Mn
2+
 
)TiO
 
3
4.CB.05Eskolaite
Cr
 
2
O
 
3
4.CB.05Geikielite
MgTiO
 
3
4.CB.05Hematite
Fe
 
2
O
 
3
4.CB.05Ilmenite
Fe
2+
 
TiO
 
3
4.CB.05Karelianite
V
3+
2
O
 
3
4.CB.05Melanostibite
Mn
2+
 
(Sb
5+
 
,Fe
3+
 
)O
 
3
4.CB.05Pyrophanite
Mn
2+
 
TiO
 
3
4.CB.05Akimotoite
(Mg,Fe
2+
 
)SiO
 
3
4.CB.05Auroantimonate
AuSbO
 
3
4.CB.05Romanite
(◻,Pb,Ca)UFe
2+
2
(Ti,Fe
3+
 
)
 
6
Ti
 
12
O
 
38
4.CB.05UM1998-11-O-AuHSb
Au
+
2
Sb
3+
 
O
 
2
(OH)
4.CB.05Tistarite
Ti
3+
2
O
 
3
4.CB.10Avicennite
Tl
 
2
O
 
3
4.CB.10Bixbyite
Mn
3+
2
O
 
3
4.CB.15Armalcolite
(Mg,Fe
2+
 
)Ti
 
2
O
 
5
4.CB.15Pseudobrookite
Fe
 
2
TiO
 
5
4.CB.15Mongshanite
(Mg,Cr,Fe
2+
 
)
 
2
(Ti,Zr)
 
5
O
 
12
4.CB.20Zincohögbomite-2N2S
[(Zn,Al,Fe
2+
 
)
 
3
(Al,Fe
3+
 
,Ti)
 
8
O
 
15
(OH)]
 
2
4.CB.20Zincohögbomite-2N6S
[(Zn,Mg)
 
7
(Al,Fe
3+
 
,Ti)
 
16
O
 
31
(OH)]
 
2
4.CB.20Magnesiohögbomite-6N6S
[(Mg,Fe
2+
 
)
 
3
(Al,Ti,Fe
3+
 
)
 
8
O
 
15
(OH)]
 
6
4.CB.20Magnesiohögbomite-2N3S
[(Mg,Fe
2+
 
,Zn)
 
4
(Al,Ti,Fe
3+
 
)
 
10
O
 
19
(OH)]
 
2
4.CB.20Magnesiohögbomite-2N2S
[(Mg,Fe
2+
 
)
 
3
[Al
 
7
(Ti,Fe
3+
 
)]O
 
15
(OH)]
 
2
4.CB.20Ferrohögbomite-6N12S
[(Fe
2+
 
,Mg,Zn)
 
5
(Al,Ti,Fe
3+
 
)
 
12
O
 
23
(OH)]
 
6
4.CB.25Pseudorutile
Fe
 
2
Ti
 
3
O
 
9
4.CB.25Kleberite
FeTi
 
6
O
 
11
(OH)
 
5
4.CB.30Berdesinskiite
V
3+
2
TiO
 
5
4.CB.30Oxyvanite
V
3+
2
V
4+
 
O
 
5
4.CB.35Olkhonskite
(Cr,V)
 
2
Ti
 
3
O
 
9
4.CB.35Schreyerite
V
3+
2
Ti
 
3
O
 
9
4.CB.40Kamiokite
Fe
 
2
Mo
 
3
O
 
8
4.CB.40Nolanite
(V
3+
 
,Fe
3+
 
,Fe
2+
 
,Ti)
 
10
O
 
14
(OH)
 
2
4.CB.40Rinmanite
Zn
 
2
Sb
 
2
Mg
 
2
Fe
 
4
O
 
14
(OH)
 
2
4.CB.40Iseite
Mn
 
2
Mo
 
3
O
 
8
4.CB.40Majindeite
Mg
 
2
Mo
 
3
O
 
8
4.CB.45Claudetite
As
 
2
O
 
3
4.CB.45Stibioclaudetite
AsSbO
 
3
4.CB.50Arsenolite
As
 
2
O
 
3
4.CB.50Sénarmontite
Sb
 
2
O
 
3
4.CB.55Valentinite
Sb
 
2
O
 
3
4.CB.60Bismite
Bi
 
2
O
 
3
4.CB.65Sphaerobismoite
Bi
 
2
O
 
3
4.CB.70Sillénite
Bi
 
12
SiO
 
20
4.CB.80Tietaiyangite
Fe
3+
4
Fe
2+
 
TiO
 
9
Related Minerals - Hey's Index Grouping:

- + 
7.12.1Montroseite
(V
3+
 
,Fe
3+
 
)O(OH)
7.12.2
Scherbinaite
7.12.3Paramontroseite
V
4+
 
O
 
2
7.12.4Häggite
V
3+
 
V
4+
 
O
 
2
(OH)
 
3
7.12.5Duttonite
V
4+
 
O(OH)
 
2
7.12.6Doloresite
V
4+
3
O
 
4
(OH)
 
4
7.12.7Lenoblite
V
4+
2
O
 
4
 · 2H
 
2
O
7.12.8Navajoite
Fe
3+
 
V
5+
9
O
 
24
 · 12H
 
2
O
7.12.9Vanoxite
V
4+
4
V
5+
2
O
 
13
 · 8H
 
2
O
7.12.10Bariandite
Al
 
0.6
(V
5+
 
,V
4+
 
)
 
8
O
 
20
 · 9H
 
2
O
7.12.11Corvusite
(Na,K,Ca,Mg)
 
2
(V
5+
 
,V
4+
 
,Fe
2+
 
)
 
8
O
 
20
 · 6-10H
 
2
O
7.12.12Simplotite
CaV
4+
4
O
 
9
 · 5H
 
2
O
7.12.14Schreyerite
V
3+
2
Ti
 
3
O
 
9
7.12.15Berdesinskiite
V
3+
2
TiO
 
5
7.12.16Tivanite
V
3+
 
TiO
 
3
(OH)
7.12.17Mannardite
Ba(Ti
4+
6
V
3+
2
)O
 
16
7.12.18Karelianite
V
3+
2
O
 
3
7.12.19Coulsonite
Fe
2+
 
V
3+
2
O
 
4
7.12.20Nolanite
(V
3+
 
,Fe
3+
 
,Fe
2+
 
,Ti)
 
10
O
 
14
(OH)
 
2
7.12.21Vuorelainenite
(Mn,Fe)(V,Cr)
 
2
O
 
4
7.12.22Tantite
Ta
 
2
O
 
5
7.12.23Kimrobinsonite
(Ta,Nb)(OH)
 
5-2x
(O,CO
 
3
)
 
x
 ; x near 1.2
Other Names for Kyzylkumite
Synonyms:
IMA1980-081
Other Languages:
German:Kyzylkumit
Spanish:Kyzylkumita
Other Information
Health Warning: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:

- + 
American Mineralogist (1982): 67: 855-856.



Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva: 110(2): 607-612.


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Hide Locality List
     		

    (TL) indicates type locality.  ? 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.

    Uzbekistan
     
    

    • 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
    


    


    

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