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⇱ Takovite: Mineral information, data and localities.

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Takovite

A valid IMA mineral species - grandfathered
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About TakoviteHide

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Formula:
Ni6Al2(OH)16[CO3] · 4H2O
Colour:
Yellowish-green, bluish-green
Hardness:
2
Specific Gravity:
2.80
Crystal System:
Trigonal
Name:
Named after its discovery locality, Takovo, Serbia.

Unique IdentifiersHide

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Mindat ID:
3874
Long-form identifier:
mindat:1:1:3874:0

IMA Classification of TakoviteHide

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Approved, 'Grandfathered' (first described prior to 1959)
IMA Formula:
Ni6Al2(CO3)(OH)16 · 4H2O
First published:
1957

Classification of TakoviteHide

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5.DA.50

5 : CARBONATES (NITRATES)
D : Carbonates with additional anions, with H2O
A : With medium-sized cations
16b.6.3.2

16b : HYDRATED CARBONATES CONTAINING HYDROXYL OR HALOGEN
6 : AmBn(XO3)pZq
7.22.5

7 : Oxides and Hydroxides
22 : Oxides of Ni

Mineral SymbolsHide

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

Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.

SymbolSourceReference for Standard
TkvIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
TkvWarr (2020)Warr, L.N. (2020) Recommended abbreviations for the names of clay minerals and associated phases. Clay Minerals, 55, 261–264 doi:10.1180/clm.2020.30

Physical Properties of TakoviteHide

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Transparency:
Translucent
Colour:
Yellowish-green, bluish-green
Hardness:
Density:
2.80 g/cm3 (Measured)    2.95 g/cm3 (Calculated)

Optical Data of TakoviteHide

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Type:
Uniaxial (-)
RI values:
nω = 1.602 - 1.605 nε = 1.594 - 1.598
Max. Birefringence:
δ = 0.007 - 0.008
Based on recorded range of RI values above.

Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.

Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.

Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars.

Surface Relief:
Moderate

Chemistry of TakoviteHide

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Mindat Formula:
Ni6Al2(OH)16[CO3] · 4H2O
Element Weights:
Element% weight
O45.413 %
Ni43.460 %
Al6.660 %
H2.985 %
C1.482 %

Calculated from ideal end-member formula.

Crystallography of TakoviteHide

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Crystal System:
Trigonal
Class (H-M):
3m(32/m) - Hexagonal Scalenohedral
Space Group:
R3m
Cell Parameters:
a = 3.0290(2) Å, c = 22.5995(15) Å
Ratio:
a:c = 1 : 7.461
Unit Cell V:
179.57 ų (Calculated from Unit Cell)
Morphology:
Microcrystalline, platy, to 1 µm; very rarely as very small six-sided platey crystals; commonly in veinlets and massive.

Crystal StructureHide

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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0019806TakoviteMills S J, Whitfield P S, Kampf A R, Wilson S A, Dipple G M, Raudsepp M, Favreau G (2012) Contribution to the crystallography of hydrotalcites: the crystal structures of woodallite and takovite Journal of Geosciences 58 273-2792012Agoudal mine, Bou Azzer district, Tazenakht, Morocco0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

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Powder Diffraction Data:
d-spacingIntensity
7.566 Å(100)
3.767 Å(90)
2.552 Å(90)
1.917 Å(90)
2.264 Å(80)
1.510 Å(80)
1.481 Å(80)
Comments:
Takovo, Serbia. Data from the type description. Pattern is similar to that of comblainite.

Geological EnvironmentHide

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Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 7: Great Oxidation Event<2.4
47a : [Near-surface hydration of prior minerals]
47c : [Carbonates, phosphates, borates, nitrates]
Stage 10a: Neoproterozoic oxygenation/terrestrial biosphere<0.6
48 : Soil leaching zone minerals<0.6

Type Occurrence of TakoviteHide

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Place of Conservation of Type Material:
National Museum of Natural History, Washington, D.C., USA, 136981.

Synonyms of TakoviteHide

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Other Language Names for TakoviteHide

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Relationship of Takovite to other SpeciesHide

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Other Members of Hydrotalcite Group:
DesautelsiteMg6Mn3+2(OH)16[CO3] · 4H2OTrig. 3m(32/m)
DroninoiteNi6Fe3+2(OH)16Cl2 · 4H2OTrig. 3m(32/m) : R3m
HydrotalciteMg6Al2(CO3)(OH)16 · 4H2OTrig. 3m(32/m) : R3m
IowaiteMg6Fe3+2(OH)16Cl2 · 4H2OTrig. 3m(32/m) : R3m
KaznakhtiteNi6Co3+2(CO3)(OH)16 · 4H2OTrig. 3 : R3
MeixneriteMg6Al2(OH)16(OH)2 · 4H2OTrig. 3m(32/m) : R3m
PyroauriteMg6Fe3+2(OH)16[CO3] · 4H2OTrig. 3m(32/m) : R3m
ReevesiteNi6Fe3+2(OH)16(CO3) · 4H2OTrig. 3m(32/m) : R3m
StichtiteMg6Cr3+2(OH)16[CO3] · 4H2OTrig. 3m(32/m) : R3m
'UM2002-02-COH:FeNi'(Fe2+,Ni)6Fe3+2(CO3)(OH)16 · 4H2O
WoodalliteMg6Cr2(OH)16Cl2 · 4H2OTrig. 3m(32/m) : R3m

Common AssociatesHide

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Associated Minerals Based on Photo Data:
5 photos of Takovite associated with Asbolane(Ni,Co)2-xMn4+(O,OH)4 · nH2O
3 photos of Takovite associated with Allophane(Al2O3)(SiO2)1.3-2 · 2.5-3H2O
3 photos of Takovite associated with FluoriteCaF2
2 photos of Takovite associated with 'Nickel-bearing Calcite'(Ca,Ni)CO3
1 photo of Takovite associated with KambaldaiteNaNi4(CO3)3(OH)3 · 3H2O
1 photo of Takovite associated with SmithsoniteZnCO3
1 photo of Takovite associated with MilleriteNiS
1 photo of Takovite associated with AragoniteCaCO3
1 photo of Takovite associated with CalciteCaCO3

Related Minerals - Strunz-mindat GroupingHide

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5.DA.AlexkhomyakoviteK6(Ca2Na)(CO3)5Cl · 6H2OHex. 6/mmm(6/m2/m2/m) : P63/mcm
5.DA.AmoraiteCa12Al6(OH)36(CO3)2(SO3) · 15H2O Tric. 1 : P1
5.DA.05DypingiteMg5(CO3)4(OH)2 · 5H2OMon. 2 : P21
5.DA.05'UM1986-10-CO:ClHMgMnZn (also called Mineral F, Dunn, 1995)'Mg5(Zn,Mn)3(CO3)2(OH,Cl)12 · H2O
5.DA.05'UM1987-01-CO:HMgS'Mg4(CO3)2(OH)4 · 6H2O ?Mon.
5.DA.05GiorgiositeMg5(CO3)4(OH)2 · 5-6H2O
5.DA.05HydromagnesiteMg5(CO3)4(OH)2 · 4H2OMon. 2/m : P21/b
5.DA.05WidgiemoolthaliteNi5(CO3)4(OH)2 · 5H2OMon. 2/m : P21/b
5.DA.10ArtiniteMg2(CO3)(OH)2 · 3H2OMon. 2/m : B2/m
5.DA.10ChlorartiniteMg2(CO3)(OH)Cl · 2H2OTrig. 3m : R3c
5.DA.10IndigiriteMg2Al2(CO3)4(OH)2 · 15H2O
5.DA.15ZaratiteNi3(CO3)(OH)4 · 4H2O ?Iso.
5.DA.15OtwayiteNi2(CO3)(OH)2 · H2OOrth.
5.DA.20KambaldaiteNaNi4(CO3)3(OH)3 · 3H2OHex. 6 : P63
5.DA.25CallaghaniteCu2Mg2(CO3)(OH)6 · 2H2OMon. 2/m : B2/b
5.DA.30Claraite(Cu,Zn)15(CO3)4(AsO4)2(SO4)(OH)14 · 7H2OTric. 1 : P1
5.DA.35HydroscarbroiteAl14(CO3)3(OH)36 · nH2OTric.
5.DA.35ScarbroiteAl5(CO3)(OH)13 · 5H2OTric.
5.DA.40KarchevskyiteMg18Al9(OH)54Sr2(CO3)9(H2O)6(H3O)5Trig.
5.DA.40'UM1987-05-OH:AlCMg'Mg4Al2(OH)12(CO3,SO4) · 3H2O
5.DA.40QuintiniteMg4Al2(OH)12(CO3) · 3H2OHex. 622 : P6322
5.DA.40CharmariteMn2+4Al2(OH)12[CO3] · 3H2OHex.
5.DA.40CaresiteFe2+4Al2(OH)12[CO3] · 3H2OTrig. 32 : P3112
5.DA.45'Hydrotalcite-2H'Mg6Al2(CO3)(OH)16 · 4H2OHex. 6/mmm(6/m2/m2/m) : P63/mmc
5.DA.45'Stichtite-2H'Mg6(Cr,Al)2(CO3)(OH)16 · 4H2OHex. 6/mmm(6/m2/m2/m) : P63/mmc
5.DA.45BrugnatelliteMg6Fe3+(CO3)(OH)13 · 4H2OHex.
5.DA.45ZaccagnaiteZn4Al2(OH)12[CO3] · 3H2OHex.
5.DA.45'Pyroaurite-2H'Mg6Fe3+2(OH)16(CO3) · 4H2OHex. 6/mmm(6/m2/m2/m) : P63/mmc
5.DA.45LiudongshengiteZn4Cr2(OH)12(CO3) · 3H2OTrig. 3m(32/m) : R3m
5.DA.45ChlormagaluminiteMg4Al2(OH)12Cl2 · 3H2OHex. 6/mmm(6/m2/m2/m) : P63/mcm
5.DA.50PyroauriteMg6Fe3+2(OH)16[CO3] · 4H2OTrig. 3m(32/m) : R3m
5.DA.50ReevesiteNi6Fe3+2(OH)16(CO3) · 4H2OTrig. 3m(32/m) : R3m
5.DA.50KaznakhtiteNi6Co3+2(CO3)(OH)16 · 4H2OTrig. 3 : R3
5.DA.50ComblainiteNi4Co2(OH)12[CO3] · 3H2OTrig.
5.DA.50Marioantofilliite[Cu4Al2(OH)12](CO3) · 3H2OMon. 2/m : B2/m
5.DA.50HydrotalciteMg6Al2(CO3)(OH)16 · 4H2OTrig. 3m(32/m) : R3m
5.DA.50StichtiteMg6Cr3+2(OH)16[CO3] · 4H2OTrig. 3m(32/m) : R3m
5.DA.50DesautelsiteMg6Mn3+2(OH)16[CO3] · 4H2OTrig. 3m(32/m)
5.DA.55CoalingiteMg10Fe3+2(OH)24[CO3] · 2H2OTrig. 3m(32/m) : R3m
5.DA.55Akopovaite Al4Li2(OH)12(CO3)(H2O)3Mon. 2/m : B2/m
5.DA.60ŠlikiteZn2Mg(CO3)2(OH)2 · 4H2OTric. 1 : P1
5.DA.65MarkliteCu5(CO3)2(OH)6 · 6H2OMon. 2/m : P21/b

Other InformationHide

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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 TakoviteHide

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mindat.org URL:
https://www.mindat.org/min-3874.html
Please feel free to link to this page.

References for TakoviteHide

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Reference List:

Localities for TakoviteHide

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Showing 22 localities.

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the 👁 Image
symbol to view information about a locality. The 👁 Image
symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

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👁 Image
- This locality has map coordinates listed. 👁 Image
- This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. 👁 Image
- Good crystals or important locality for species. 👁 Image
- 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.
Australia
  • Western Australia
    • Coolgardie Shire
Nickel et al. (1985)
        • Kambalda Nickel mines
          • Juan complex
Nickel et al. (1977)
        • St. Ives gold Camp
Marston (1984)
      • Widgiemooltha
Nickel et al. (1993) +1 other reference
Nickel et al. (1977)
    • Leonora Shire
      • Leinster
Nickel et al. (1977) +1 other reference
Sorrell (n.d.)
    • Menzies Shire
      • Menangina Station
Nickel et al. (1977) +2 other references
France
  • New Caledonia
    • Northern Province
      • Poya North
Coudray (1970)
  • Provence-Alpes-Côte d'Azur
Bish et al. (1977)
Germany
  • Baden-Württemberg
    • Freiburg Region
      • Ortenaukreis
        • Oberwolfach
Walenta (1992)
      • Waldshut
        • Dachsberg
          • Urberg
Walenta (1991) +1 other reference
Greece
  • Attica
    • East Attica
      • Lavreotiki
        • Sounion
          • Cato Sounio mines
Niedermayr et al. (2001)
  • Central Greece
    • Boeotia
      • Orchomenus
Pantó et al. (2001) +1 other reference
Morocco
  • Drâa-Tafilalet Region
    • Zagora Province
      • Agdz Cercle
        • Tansifte Caïdat
          • Aghbar
Favreau (n.d.)
Favreau (n.d.) +2 other references
Romania
  • Suceava County
    • Iacobeni
minerals-of-the-carpathians.eu (2008)
      • Tolovanu
Hîrtopanu (1997) +1 other reference
Russia
  • Moscow Oblast
    • Podolsk Urban District
Pavel.M. Kartashov (n.d.) +2 other references
Serbia (TL)
  • Central Serbia
    • Moravica District
      • Gornji Milanovac
Zap.Srpskog.Geol. Drustva zo 1955 god. +2 other references
Turkey
  • Manisa Province
    • Turgutlu District
Helvaci et al. (2013)
USA
  • Utah
    • Utah County
      • Oquirrh Mountains
Bullock (1981)
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