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About TikhonenkoviteHide

pale pink, colourless
Crystal System:
Named after Igor Petrovich Tikhonenkov (Игоря Петровича Тихоненкова) (1927-1961), Russian geologist specializing in alkaline rocks, with the Institute of Mineralogy, Geochemistry and Crystallochemistry of Rare Elements, Moscow.
Dimorph of:
An aluminium complex salt. Chemically identical to acuminite.

Crystal structure is similar to that of acuminite. Difference: type of mutual connection of four Sr polyhedra. In tikhonenkovite it is one edge and two apex sharing connections; in acuminite - two edges and one apex are shared (Krogh Andersen et al., 1991).

Classification of TikhonenkoviteHide


C : Complex halides
C : Soro-aluminofluorides

6 : Aluminofluorides - Isolated Octahedra

8 : Halides - Fluorides, Chlorides, Bromides and Iodides; also Fluoborates and Fluosilicates
4 : Halides of the alkaline earths and Mg

Physical Properties of TikhonenkoviteHide

pale pink, colourless
3½ on Mohs scale

Optical Data of TikhonenkoviteHide

Biaxial (-)
RI values:
nα = 1.452 nβ = 1.456 nγ = 1.458
Measured: 70° , Calculated: 70°
Max Birefringence:
δ = 0.006
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
r > v distinct

Chemical Properties of TikhonenkoviteHide

IMA Formula:
SrAlF4(OH) · H2O

Crystallography of TikhonenkoviteHide

Crystal System:
Class (H-M):
2/m - Prismatic
Space Group:
Cell Parameters:
a = 8.73 Å, b = 10.62 Å, c = 5.02 Å
β = 102.72°
a:b:c = 0.822 : 1 : 0.473
Unit Cell V:
453.99 ų (Calculated from Unit Cell)

Type Occurrence of TikhonenkoviteHide

Other Language Names for TikhonenkoviteHide

Related Minerals - Nickel-Strunz GroupingHide

3.CC.05GearksutiteCa[Al(F,OH)5(H2O)]Tric. 1 : P1
3.CC.10AcuminiteSr[AlF4(OH)(H2O)]Mon. 2/m : B2/b
3.CC.15ArtroeitePb[AlF3(OH)2]Tric. 1 : P1
3.CC.20JarliteNa(Sr,Na)7MgAl6F32(OH,H2O)2Mon. 2/m
3.CC.20JørgenseniteNa2(Sr,Ba)14Na2Al12F64(OH,F)4Mon. 2/m

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

8.4.1SellaiteMgF2Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm
8.4.2NeighboriteNaMgF3Orth. mmm (2/m 2/m 2/m)
8.4.3BischofiteMgCl2 · 6H2OMon. 2/m : B2/m
8.4.4KorshunovskiteMg2Cl(OH)3 · 4H2OTric.
8.4.5CarnalliteKMgCl3 · 6H2OOrth. mmm (2/m 2/m 2/m) : Pnna
8.4.6TachyhydriteCaMg2Cl6 · 12H2OTrig.
8.4.7FluoriteCaF2Iso. m3m (4/m 3 2/m) : Fm3m
8.4.8SinjariteCaCl2 · 2H2OTet.
8.4.9AntarcticiteCaCl2 · 6H2OTrig. 3 2 : P3 2 1
8.4.10ChlorocalciteKCaCl3Orth. mmm (2/m 2/m 2/m) : Pnma
8.4.12JarliteNa(Sr,Na)7MgAl6F32(OH,H2O)2Mon. 2/m
8.4.15AcuminiteSr[AlF4(OH)(H2O)]Mon. 2/m : B2/b
8.4.16FrankdicksoniteBaF2Iso. m3m (4/m 3 2/m) : Fm3m
8.4.18BøgvaditeNa2SrBa2Al4F20Mon. 2/m

Other InformationHide

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 TikhonenkoviteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Khomyakov, A.P., Stepanov, V.I., Moleva, V.A. and Pudovkina, Z.V. (1964) The new mineral tikhonenkovite, SrAlF4(OH)•H2O. Doklady Akademii Nauk USSR: 156: 345-347. (in Russian)
American Mineralogist (1964): 49: 1774 (abstract).
Anthony, J.W., Bideaux, R.A., Bladh, K.W. and Nichols, M.C., Eds. Handbook of Mineralogy, Mineralogical Society of America, Chantilly, VA 20151-1110, USA. (2016)
Krogh Andersen, E., Ploug-Sorensen, G., Leonardsen, E. (1991) The structure of acuminite, a strontium aluminium fluoride mineral. Zeitschrift für Kristallographie: 194: 221-227.

Internet Links for TikhonenkoviteHide

Localities for TikhonenkoviteHide

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

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Russia (TL)
  • Eastern-Siberian Region
    • Tuva Republic
      • Tannu-Ola Range
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
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