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Tinaksite

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Formula:
K
 
2
Na(Ca,Mn
2+
 
)
 
2
Ti[O|Si
 
7
O
 
18
(OH)]
System:TriclinicColour:Yellowish, grayish-white
Hardness:6
Name:The name reflects its composition: titanium (Ti), sodium (Na) potassium (K) and silicon (Si).
This page provides mineralogical data about Tinaksite.

Classification of Tinaksite

IMA status:Approved
Strunz 8th edition ID:8/F.22-30
Nickel-Strunz 10th (pending) edition ID:9.DG.75

9 : SILICATES (Germanates)
D : Inosilicates
G : Inosilicates with 3-periodic single and multiple chains
Dana 8th edition ID:67.2.1.1

67 : INOSILICATES Unbranched Chains with W > 2
2 : Unbranched Chains with W>2 with W=5
Hey's CIM Ref.:14.9.36

14 : Silicates not Containing Aluminum
9 : Silicates of Ti
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Type Occurrence of Tinaksite

Type Locality:Murunskii Massif, Chara and Tokko Rivers Confluence, Aldan Shield, Sakha Republic (Saha Republic; Yakutia), Eastern-Siberian Region, Russia
Year of Discovery:1965

Physical Properties of Tinaksite

Lustre:Vitreous
Colour:Yellowish, grayish-white
Hardness (Mohs):6

Crystallography of Tinaksite

Crystal System:Triclinic
Cell Parameters:a = 10.37Å, b = 12.16Å, c = 7.05Å
α = 90.91°, β = 99.31°, γ = 92.76°
Ratio:a:b:c = 0.853 : 1 : 0.58
Unit Cell Volume:V 876.02 ų (Calculated from Unit Cell)

Optical Data of Tinaksite

Type:Biaxial (+)
RI values: nα = 1.593 nβ = 1.621 nγ = 1.666
Maximum Birefringence:δ = 0.073

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Dispersion:none

Chemical Properties of Tinaksite

Formula:
K
 
2
Na(Ca,Mn
2+
 
)
 
2
Ti[O|Si
 
7
O
 
18
(OH)]
Simplified for copy/paste:K2Na(Ca,Mn2+)2Ti[O|Si7O18(OH)]
Essential elements:Ca, H, K, Na, O, Si, Ti
All elements listed in formula:Ca, H, K, Mn, Na, O, Si, Ti
Common Impurities:Al,Fe,Mg,H2O

Relationship of Tinaksite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
9.DG.05Bustamite
CaMn
2+
 
(Si
 
2
O
 
6
)
9.DG.05Ferrobustamite
Ca(Fe
2+
 
,Ca,Mn
2+
 
)(Si
 
2
O
 
6
)
9.DG.05Pectolite
NaCa
 
2
(HSi
 
3
O
 
9
)
9.DG.05Sérandite
Na(Mn
2+
 
,Ca)
 
2
(HSi
 
3
O
 
9
)
9.DG.05Wollastonite
CaSiO
 
3
9.DG.05Wollastonite-1A
CaSiO
 
3
9.DG.07Cascandite
Ca(Sc,Fe
3+
 
)(HSi
 
3
O
 
9
)
9.DG.08Plombièrite
Ca
 
5
(HSi
 
3
O
 
9
)
 
2
· 7H
 
2
O
9.DG.10Clinotobermorite
Ca
 
5
(Si
 
6
O
 
17
) · 5H
 
2
O
9.DG.10Riversideite
Ca
 
5
(HSi
 
3
O
 
9
)
 
2
· 2H
 
2
O
9.DG.10Tobermorite
Ca
 
4+x
(H
 
2-2x
Si
 
6
O
 
17
) · 5H
 
2
O
9.DG.15Foshagite
Ca
 
4
(Si
 
3
O
 
9
)(OH)
 
2
9.DG.20Jennite
Ca
 
9
(Si
 
3
O
 
9
)
 
2
(OH)
 
8
· 8H
 
2
O
9.DG.25Paraumbite
K
 
3
Zr
 
2
H(Si
 
3
O
 
9
)
 
2
· nH
 
2
O
9.DG.25Umbite
K
 
2
(Zr,Ti)Si
 
3
O
 
9
· H
 
2
O
9.DG.30Sørensenite
Na
 
4
SnBe
 
2
Si
 
6
O
 
16
(OH)
 
4
9.DG.35Xonotlite
Ca
 
6
(Si
 
6
O
 
17
)(OH)
 
2
9.DG.40Hillebrandite
Ca
 
2
(SiO
 
3
)(OH)
 
2
9.DG.45Zorite
Na
 
8
(Ti,Nb)
 
5
(Si
 
6
O
 
17
)
 
2
(OH,O)
 
5
· 14H
 
2
O
9.DG.45Chivruaiite
Ca
 
4
(Ti,Nb)
 
5
(Si
 
6
O
 
17
)
 
2
(OH,O)
 
5
· 13-14H
 
2
O
9.DG.50Haineaultite
(Na,Ca)
 
5
Ca(Ti,Nb)
 
5
(Si
 
6
O
 
17
)
 
2
(OH,F)
 
8
· 5H
 
2
O
9.DG.55Epididymite
Na
 
2
Be
 
2
Si
 
6
O
 
15
· H
 
2
O
9.DG.60Eudidymite
Na
 
2
Be
 
2
Si
 
6
O
 
15
· H
 
2
O
9.DG.65Elpidite
Na
 
2
ZrSi
 
6
O
 
15
· 3H
 
2
O
9.DG.70Fenaksite
(K,Na)
 
4
(Fe,Mn)
 
2
(Si
 
4
O
 
10
)
 
2
(OH,F)
9.DG.70Litidionite
CuNaKSi
 
4
O
 
10
9.DG.70Manaksite
KNaMnSi
 
4
O
 
10
9.DG.75Tokkoite
K
 
2
Ca
 
4
Si
 
7
O
 
17
(O,OH,F)
 
4
9.DG.75Senkevichite
CsKNaCa
 
2
Ti[O|Si
 
7
O
 
18
(OH)]
9.DG.80Canasite
K
 
2
Na
 
4
Ca
 
5
(Si
 
12
O
 
30
(OH,F)
 
4
9.DG.80Fluorcanasite
K
 
3
Na
 
3
Ca
 
5
Si
 
12
O
 
30
F
 
4
· H
 
2
O
9.DG.85Miserite
K(Ca,Ce)
 
4
Si
 
5
O
 
13
(OH)
 
3
9.DG.90Frankamenite
K
 
3
Na
 
3
Ca
 
5
(Si
 
12
O
 
30
)(F,OH)
 
4
· H
 
2
O
9.DG.92Charoite
(K,Sr)
 
15-16
(Ca,Na)
 
32
[Si
 
6
O
 
11
(O,OH)
 
6
]
 
2
[Si
 
12
O
 
18
(O,OH)
 
12
]
 
2
[Si
 
17
O
 
25
(O,OH)
 
18
]
 
2
(OH,F)
 
4
· ~3H
 
2
O
9.DG.95Yuksporite
(K,Ba)NaCa
 
2
(Si,Ti)
 
4
O
 
11
(F,OH) · H
 
2
O
9.DG.97Eveslogite
(Na,K,Ca,Sr,Ba)
 
48
[(Ti,Nb,Mn,Fe
2+
 
)
 
12
Si
 
48
O
 
144
(OH)
 
12
](F,OH,Cl)
 
14
Related Minerals - Hey's Index Grouping:

- +
14.9.1Natisite
Na
 
2
Ti(SiO
 
4
)O
14.9.2Lorenzenite
Na
 
2
Ti
 
2
(Si
 
2
O
 
6
)O
 
3
14.9.3Lintisite
LiNa
 
3
Ti
 
2
(Si
 
2
O
 
6
)
 
2
O
 
2
· 2H
 
2
O
14.9.4Davanite
K
 
2
TiSi
 
6
O
 
15
14.9.5Kazakovite
Na
 
6
Mn
2+
 
Ti(Si
 
6
O
 
18
)
14.9.6Titanite
CaTi(SiO
 
4
)O
14.9.7Ohmilite
Sr
 
3
(Ti,Fe
3+
 
)(Si
 
4
O
 
12
)(O,OH) · 2-3H
 
2
O
14.9.8Lamprophyllite
(Sr,K,Ba)
 
2
(Na,Ti,Mn
2+
 
,Fe
3+
 
)
 
4
Ti
 
2
(Si
 
2
O
 
7
)
 
2
O(O,OH,F)
14.9.9Benitoite
BaTi(Si
 
3
O
 
9
)
14.9.10Batisite
BaNaNaTi
 
2
(Si
 
4
O
 
12
)O
 
2
14.9.11Fresnoite
Ba
 
2
Ti(Si
 
2
O
 
7
)O
14.9.12Joaquinite-(Ce)
NaBa
 
2
Ce
 
2
FeTi
 
2
[Si
 
4
O
 
12
]
 
2
O
 
2
(OH,F) · H
 
2
O
14.9.13Orthojoaquinite-(Ce)
NaBa
 
2
Ce
 
2
FeTi
 
2
[Si
 
4
O
 
12
]
 
2
O
 
2
(O,OH) · H
 
2
O
14.9.14Strontiojoaquinite
Sr
 
2
Ba
 
2
(Na,Fe)
 
2
Ti
 
2
[Si
 
4
O
 
12
]
 
2
O
 
2
(O,OH)
 
2
· H
 
2
O
14.9.15Bario-orthojoaquinite
(Ba,Sr)
 
4
Fe
 
2
Ti
 
2
[Si
 
4
O
 
12
]
 
2
O
 
2
· H
 
2
O
14.9.16Strontio-orthojoaquinite
(Na,Fe)
 
2
Sr
 
2
Ba
 
2
Ti
 
2
[Si
 
4
O
 
12
]
 
2
O
 
2
(O,OH)
 
2
· H
 
2
O
14.9.17Bafertisite
Ba(Fe
2+
 
,Mn
2+
 
)
 
2
Ti(Si
 
2
O
 
7
)O(F,OH)
 
2
14.9.18Hejtmanite
Ba(Mn
2+
 
,Fe
2+
 
)
 
2
Ti(Si
 
2
O
 
7
)O(OH,F)
14.9.19Delindeite
(Na,K)
 
2
(Ba,Ca)
 
2
(Ti,Fe,Al)
 
3
(Si
 
2
O
 
7
)
 
2
O
 
2
(OH)
 
2
· 2H
 
2
O
14.9.20Barytolamprophyllite
(Ba,Na)
 
2
(Na,Ti,Fe
3+
 
)
 
4
Ti
 
2
(Si
 
2
O
 
7
)
 
2
O(OH,F)
14.9.21Trimounsite-(Y)
Y
 
2
Ti
 
2
(SiO
 
4
)O
 
5
14.9.22Perrierite-(Ce)
(Ce,Ca,Th)
 
4
(Fe
2+
 
,Mg)Fe
3+
2
(Ti,Fe
3+
 
)
 
2
(Si
 
2
O
 
7
)
 
2
O
 
8
14.9.23Chevkinite
(Ce,Ca,Th)
 
4
(Fe,Mn)
 
2
(Ti,Fe)
 
3
[Si
 
2
O
 
7
]
 
2
O
 
8
14.9.24Strontiochevkinite
(Sr,La,Ce,Ca)
 
4
Fe
2+
 
(Ti,Zr)
 
2
Ti
 
2
(Si
 
2
O
 
7
)
 
2
O
 
8
14.9.25Tisinalite
Na
 
3
H
 
3
(Mn,Ca,Fe)TiSi
 
6
(O,OH)
 
18
· 2H
 
2
O
14.9.26Neptunite
Na
 
2
KLi(Fe
2+
 
,Mn
2+
 
)
 
2
Ti
 
2
(Si
 
8
O
 
24
)
14.9.27Manganoneptunite
Na
 
2
KLi(Mn
2+
 
,Fe
2+
 
)
 
2
Ti
 
2
[Si
 
8
O
 
24
]
14.9.28Kupletskite
(K,Na)
 
3
(Mn,Fe)
 
7
Ti
 
2
Si
 
8
O
 
26
(OH)
 
4
F
14.9.29Astrophyllite
(K,Na)
 
3
(Fe,Mn)
 
7
Ti
 
2
Si
 
8
O
 
24
(O,OH)
 
7
14.9.30Hydroastrophyllite
(H
 
3
O,K,Ca)
 
3
(Fe,Mn)
 
5-65
Ti
 
2
Si
 
8
(O,OH)
 
31
14.9.31Magnesioastrophyllite
(Na,K)
 
4
Mg
 
2
(Fe,Fe,Mn)
 
5
Ti
 
2
Si
 
8
O
 
24
(O,OH,F)
 
7
14.9.32Baratovite
KCa
 
7
(Ti,Zr)
 
2
Li
 
3
Si
 
12
O
 
36
F
 
2
14.9.34Aenigmatite
Na
 
2
Fe
2+
5
Ti(Si
 
6
O
 
18
)O
 
2
14.9.35Schorlomite
Ca
 
3
(Ti,Fe
3+
 
)
 
2
((Si,Fe
3+
 
)O
 
4
)
 
3
14.9.37Janhaugite
(Na,Ca)
 
3
(Mn
2+
 
,Fe
2+
 
)
 
3
(Ti,Zr,Nb)
 
2
(Si
 
2
O
 
7
)
 
2
O
 
2
(OH,F)
 
2
14.9.38Koashvite
Na
 
6
(Ca,Mn)(Ti,Fe)Si
 
6
O
 
18
· H
 
2
O

Other Names for Tinaksite

Other Languages:
German:Tinaksit
Russian:Тинаксит
Spanish:Tinaksita

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 Tinaksite

Reference List:

- +
Doklady Akademii Nauk SSSR (1965): 162: 658-661.

American Mineralogist (1965): 50: 2098-2099.

Acta Crystallographica: B36: 259-263.

Mineralogicheskii Zhurnal, Kiev: 13(4): 3-12.

Zeitschrift für Kristallographie (1987): 189: 195.

Internet Links for Tinaksite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Tinaksite details from Handbook of Mineralogy (PDF)
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  • Localities for Tinaksite

    The 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. ? 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.
    Russia
     
    • Eastern-Siberian Region
      • Prebaikalia (Pribaikal'e)
        • Irkutskaya Oblast'
          • Aldan Shield
            • Chara and Tokko Rivers Confluence
              • Murunskii Massif
    Vorob'yev E.I. (2008) Charoite, - Novosibirsk. GEO, p. 142 (in Rus.).
      • Sakha Republic (Saha Republic; Yakutia)
        • Aldan Shield
          • Chara and Tokko Rivers Confluence
    [Lapis 1993:4 p.13-20]; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    Pavel M. Kartashov data
    Natural History Museum Vienna collection
    Konev, A.A., Vorob'yev, E.I., and Lazebnik, K.A. (1996) The Mineralogy of the Murun Massif. Russian Academy of Science Press, Siberian Branch, Novosbirsk, Russia (in Rus.); Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    Vorob'yov E.I. (2008) Charoite, - Novosibirsk. GEO, p. 142 (in Rus.).
    Vorob'yov E.I. (2008) Charoite, - Novosibirsk. GEO, p. 142 (in Rus.).
    Pavel M. Kartashov data
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
          • Khibiny Massif
    [Mandarino, 1997]
            • Rasvumchorr Mt
    P.M. Kartashov data
    Mineral and/or Locality  
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