Mindat Logo
Home Page Log In Messageboard The Mindat Directory
Register Search Pages Mineral Chatroom The Mindat Store

Takovite

This page is currently not sponsored. Click here to sponsor this page.
Big Photo

Aghbar Mine (Arhbar Mine), Aghbar, Bou Azer District (Bou Azzer District), Tazenakht, Ouarzazate Province, Souss-Massa-Draâ Region, Morocco
© Georges Favreau 2011

Show Takovite Photos (17)



Formula:
Ni
 
6
Al
 
2
(OH)
 
16
[CO
 
3
] · 4H
 
2
O
System:TrigonalColour:Yellowish-green, ...
Hardness:2
Member of:Hydrotalcite Group > Hydrotalcite Supergroup
Name:Named after its discovery locality, Takovo, Serbia.


Hydrotalcite Group.

Classification of Takovite

IMA status:Approved
Strunz 8th edition ID:5/E.03-50
Nickel-Strunz 10th (pending) edition ID:5.DA.50

5 : CARBONATES (NITRATES)
D : Carbonates with additional anions, with H2O
A : With medium-sized cations
Dana 8th edition ID:16b.6.3.2

16b : HYDRATED CARBONATES CONTAINING HYDROXYL OR HALOGEN
6 : AmBn(XO3)pZqxH2O & with (m+n):p = 8:1
Hey's CIM Ref.:7.22.5

7 : Oxides and Hydroxides
22 : Oxides of Ni
mindat.org URL:http://www.mindat.org/min-3874.html
Please feel free to link to this page.

Type Occurrence of Takovite

Type Locality:Takovo, Serbia
Year of Discovery:1957

Physical Properties of Takovite

Diaphaneity (Transparency):Translucent
Colour:Yellowish-green, bluish-green
Hardness (Mohs):2

Crystallography of Takovite

Crystal System:Trigonal
Cell Parameters:a = 3.02Å, c = 22.59Å
Ratio:a:c = 1 : 7.48
Unit Cell Volume:V 178.43 ų (Calculated from Unit Cell)

Optical Data of Takovite

Type:Uniaxial (-)
RI values: nω = 1.601 - 1.602 nε = 1.600
Maximum Birefringence:δ = 0.001 - 0.002

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate

Chemical Properties of Takovite

Formula:
Ni
 
6
Al
 
2
(OH)
 
16
[CO
 
3
] · 4H
 
2
O
Essential elements:Al, C, H, Ni, O
All elements listed in formula:Al, C, H, Ni, O

Relationship of Takovite to other Species

Member of:Hydrotalcite Group > Hydrotalcite Supergroup
Other Members of Group:

- +
Desautelsite
Mg
 
6
Mn
3+
2
(OH)
 
16
[CO
 
3
] · 4H
 
2
O
Droninoite
Ni
 
6
Fe
2+
3
(OH)
 
16
Cl
 
2
 · 4H
 
2
O
Hydrotalcite
Mg
 
6
Al
 
2
(OH)
 
16
[CO
 
3
] · 4H
 
2
O
Iowaite
Mg
 
6
Fe
3+
2
(OH)
 
16
Cl
 
2
 · 4H
 
2
O
Jamborite
(Ni
2+
 
,Ni
3+
 
,Co,Fe)(OH)
 
2
(OH,S,H
 
2
O)
Meixnerite
Mg
 
6
Al
 
2
(OH)
 
16
(OH)
 
2
 · 4H
 
2
O
Pyroaurite
Mg
 
6
Fe
3+
2
(OH)
 
16
[CO
 
3
] · 4H
 
2
O
Reevesite
Ni
 
6
Fe
3+
2
(OH)
 
16
(CO
 
3
) · 4H
 
2
O
Stichtite
Mg
 
6
Cr
 
2
(OH)
 
16
[CO
 
3
] · 4H
 
2
O
Woodallite
Mg
 
6
Cr
 
2
(OH)
 
16
Cl
 
2
 · 4H
 
2
O
Related Minerals - Nickel-Strunz Grouping):

- +
5.DA.05Dypingite
Mg
 
5
(CO
 
3
)
 
4
(OH)
 
2
 · 5H
 
2
O
5.DA.05Giorgiosite
Mg
 
5
(CO
 
3
)
 
4
(OH)
 
2
 · 5-6H
 
2
O
5.DA.05Hydromagnesite
Mg
 
5
(CO
 
3
)
 
4
(OH)
 
2
 · 4H
 
2
O
5.DA.05Widgiemoolthalite
Ni
 
5
(CO
 
3
)
 
4
(OH)
 
2
 · 5H
 
2
O
5.DA.05UM1986-10-CO:ClHMgMnZn
Mg
 
5
(Zn,Mn)
 
3
(CO
 
3
)
 
2
(OH,Cl)
 
12
 · H
 
2
O
5.DA.05UM1987-01-CO:HMgS
Mg
 
4
(CO
 
3
)
 
2
(OH)
 
2
 · 6H
 
2
O ?
5.DA.10Artinite
Mg
 
2
(CO
 
3
)(OH)
 
2
 · 3H
 
2
O
5.DA.10Indigirite
Mg
 
2
Al
 
2
(CO
 
3
)
 
4
(OH)
 
2
 · 15H
 
2
O
5.DA.10Chlorartinite
Mg
 
2
(CO
 
3
)(OH)Cl · 2H
 
2
O
5.DA.15Otwayite
Ni
 
2
(CO
 
3
)(OH)
 
2
 · H
 
2
O
5.DA.15Zaratite
Ni
 
3
(CO
 
3
)(OH)
 
4
 · 4H
 
2
O
5.DA.20Kambaldaite
NaNi
 
4
(CO
 
3
)
 
3
(OH)
 
3
 · 3H
 
2
O
5.DA.25Callaghanite
Cu
 
2
Mg
 
2
(CO
 
3
)(OH)
 
6
 · 2H
 
2
O
5.DA.30Claraite
(Cu,Zn)
 
3
(CO
 
3
)(OH)
 
4
 · 4H
 
2
O
5.DA.35Hydroscarbroite
Al
 
14
(CO
 
3
)
 
3
(OH)
 
36
 · nH
 
2
O
5.DA.35Scarbroite
Al
 
5
(CO
 
3
)(OH)
 
13
 · 5H
 
2
O
5.DA.40Caresite
Fe
2+
4
Al
 
2
(OH)
 
12
[CO
 
3
] · 3H
 
2
O
5.DA.40Quintinite
Mg
 
4
Al
 
2
(OH)
 
12
[CO
 
3
] · 3H
 
2
O
5.DA.40Charmarite
Mn
2+
4
Al
 
2
(OH)
 
12
[CO
 
3
] · 3H
 
2
O
5.DA.45Stichtite-2H
Mg
 
6
(Cr,Al)
 
2
(CO
 
3
)(OH)
 
16
 · 4H
 
2
O
5.DA.45Brugnatellite
Mg
 
6
Fe
3+
 
(CO
 
3
)(OH)
 
13
 · 4H
 
2
O
5.DA.45Chlormagaluminite
Mg
 
4
Al
 
2
(OH)
 
12
Cl
 
2
 · 3H
 
2
O
5.DA.45Hydrotalcite-2H
Mg
 
6
Al
 
2
(CO
 
3
)(OH)
 
16
 · 4H
 
2
O
5.DA.45Pyroaurite-2H
Mg
 
6
Fe
3+
2
(CO
 
3
)(OH)
 
16
 · 4H
 
2
O
5.DA.45Zaccagnaite
Zn
 
4
Al
 
2
(OH)
 
12
[CO
 
3
] · 3H
 
2
O
5.DA.50Comblainite
Ni
 
4
Co
 
2
(OH)
 
12
[CO
 
3
] · 3H
 
2
O
5.DA.50Desautelsite
Mg
 
6
Mn
3+
2
(OH)
 
16
[CO
 
3
] · 4H
 
2
O
5.DA.50Hydrotalcite
Mg
 
6
Al
 
2
(OH)
 
16
[CO
 
3
] · 4H
 
2
O
5.DA.50Pyroaurite
Mg
 
6
Fe
3+
2
(OH)
 
16
[CO
 
3
] · 4H
 
2
O
5.DA.50Reevesite
Ni
 
6
Fe
3+
2
(OH)
 
16
(CO
 
3
) · 4H
 
2
O
5.DA.50Stichtite
Mg
 
6
Cr
 
2
(OH)
 
16
[CO
 
3
] · 4H
 
2
O
5.DA.50UM1998-10-CO:CoHNi
Co
 
6
Fe
 
2
(CO
 
3
)(OH)
 
16
 · 4H
 
2
O ?
5.DA.55Coalingite
Mg
 
10
Fe
3+
2
(OH)
 
24
[CO
 
3
] · 2H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
7.22.1Bunsenite
NiO
7.22.3Theophrastite
Ni(OH)
 
2
7.22.4Jamborite
(Ni
2+
 
,Ni
3+
 
,Co,Fe)(OH)
 
2
(OH,S,H
 
2
O)
7.22.6Trevorite
Ni
2+
 
Fe
3+
2
O
 
4
7.22.7Nichromite
(Ni,Co,Fe)(Cr,Fe,Al)
 
2
O
 
4

Other Names for Takovite

Synonyms:
Eardleyite
Other Languages:
German:Eardleyit
Eardlyit
Takovit
Spanish:Eardleyita
Eardlyita
Takovita

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 Takovite

Reference List:

- +
Maksimovic Z. (1957), Zap. Vses. Mineral. Obshchestva, 99, 595.

American Mineralogist (1972): 57: 1559.

American Mineralogist (1977): 62: 458-464.

Zapisnici srp. Geol. Društva za 1955 god: 219-224.

Mills, S.J., Christy, A.G., Genin, J.-M.R., Kameda, T., Colombo, F. (2012): Nomenclature of the hydrotalcite supergroup: natural layered double hydroxides. Mineralogical Magazine, 76, 1289-1336.

Internet Links for Takovite

Search Engines:
  • Look for Takovite on Google
  • Look for Takovite images on Google
    • External Links:
  • Look for Takovite on Webmineral
  • Look for Takovite on Athena Mineralogy
  • Look for Takovite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Takovite details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
  • Fine Minerals from Weinrich Minerals, Inc.
  • SpiriferMinerals.com - high quality low prices
  • Takovite specimens for sale - minfind.com
  • DAKOTA MATRIX offers Cabinet and Rare Species from Worldwide Localities.
  • Buy from David K Joyce minerals
  • rare and unusual minerals mainly crystallized
  • Fine and rare minerals from mintreasure.com
  • Buy minerals from YourMineralCollection
  • Buy fine minerals and gemstones from Pala International
  • Search for Takovite on Well-Arranged Molecules
  • Wilensky Fine Minerals
  • Search for - Takovite - on e-Rocks Mineral Sales & Auctions
    • Jobs:
  • Mining & Geology Jobs

    • Localities for Takovite

    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.
    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.
    Australia
     
    • Western Australia
      • Coolgardie Shire
    		E Nickel & B Robinson (1985)Kambaldaite - A new hvdrated Ni-Na carbonate mineral from Kambalda, Western Australia, American Mineralogist, Volume 70, pages 419422
          • Kambalda Nickel deposit
            • Otter Juan mine
    		Eardleyite as a Product of the Supergene Alteration of Nickel Sulphides in Western Australia; E Nickel, C Davis, M Bussell, P Bridge, J Dunn, R Macdonald; American Mineralogist, Vol 62, pp 449-457, 1977
        • Widgiemooltha
    		No reference listed
    Eardleyite as a Product of the Supergene Alteration of Nickel Sulphides; E Nickel, C Davis, M Bussell, P Bridge, J Dunn, R Macdonald; American MIneralogist, Vol 62, pp449-457, 1977
      • Leonora Shire
        • Leinster
    		E. H. Nickel, E.H. et al. (1977) Eardleyite as a product of the supergene alteration of nickel sulfides in Western Australia. American Mineralogist; June 1977; v. 62; no. 5-6; p. 449-457
      • Menzies Shire
        • Menangina Station
    		Mineralogical Magazine 1977 41 : 37-41; Min Mag (1979) 43, 97-98
    Germany
     
    • Baden-Württemberg
      • Black Forest
        • St Blasien
          • Urberg
    		Walenta: "Die Mineralien des Schwarzwaldes", Weise (Munich), 1992
        • Wolfach
          • Oberwolfach
            • Rankach valley
    		Walenta, K. (1992): Die Mineralien des Schwarzwaldes. Chr. Weise Verlag, München, 336 pp. (in German)
    Greece
     
    • Attikí (Attica; Attika) Prefecture
      • Lavrion (Laurion; Laurium) District
        • Lavrion District Mines
          • Sounion area
            • Sounion Mines
    		G. Niedermayr and F. Brandstätter (2001) Neufund aus Laurion: Takovit von Sounion, Griechenland. Mineralienwelt 2/2001 (in German)
    • Sterea Hellas Department
      • Fthiótis Prefecture
        • Lokris
    		Acta Geol. Hung., 44(1), 81–93.
    Morocco
     
    • Souss-Massa-Draâ Region
      • Ouarzazate Province
        • Tazenakht
          • Bou Azer District (Bou Azzer District)
            • Aghbar
    		Georges Favreau collection
    JP Barral collection
    Georges Favreau collection
    Romania
     
    • Suceava Co.
      • Suceava district
        • Iacobeni (Jakobeny; Jacobeny; Jakabfalva)
    		http://minerals-of-the-carpathians.eu
    Russia
     
    • Central Region
      • Moscow Oblast' (Moskovskaya Oblast')
    		Pavel M. Kartashov analytical data
    Serbia
     
    Zap.Srpskog.Geol. Drustva zo 1955 god. ; AM 62 (1977), 458
    USA
     
    • Utah
      • Utah Co.
        • Oquirrh Mts
    		UGMS Bull 117 Minerals and Mineral Localities of Utah
    Mineral and/or Locality
    Search Google
     
    Copyright © Jolyon Ralph and Ida Chau 1993-2013. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
    Current server date and time: 10th Apr 2013 01:11:01
    Mineral and Locality Search
    Mineral:
    and/or Locality:
    Options
    Fade toolbar when not in focusFix toolbar to bottom of page
    Hide Social Media Links
    Slideshow frame delay seconds