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Takovite

Pictures (4 Images total)

Takovit, Calcit
Views (Image: 1179056709): 1598
Takovit, Calcit

Fundort: Sounion Mine No. 19 ("Chloridstollen"), Sounion, Lavrion, Attika, Griechenland

Copyright: Fritz Schreiber
Contribution: Erik 2007-05-13
Locality: Sounion Mine Nr. 19 (Chloridstollen) / Sounion-Gruben / Sounion, Revier / Lavrion (Laurion), Bergbaudistrikt / Attika (Attikí, Attica) / Griechenland
Takovit, Calcit
Views (Image: 1179056699): 1541
Takovit, Calcit

Fundort: Sounion Mine No. 19 ("Chloridstollen"), Sounion, Lavrion, Attika, Griechenland

Copyright: Fritz Schreiber
Contribution: Erik 2007-05-13
Locality: Sounion Mine Nr. 19 (Chloridstollen) / Sounion-Gruben / Sounion, Revier / Lavrion (Laurion), Bergbaudistrikt / Attika (Attikí, Attica) / Griechenland
Takovit
Views (Image: 1380706907): 977
Takovit (SNr: A002474)

Krustige hellblaue Kristalle; BB = 4,2 mm. Fundort: Sounion Mine No. 19 ("Chloridstollen"), Sounion, Lavrion, Attika, Griechenland.

Collection: Lithothek der Münchener Micromounter
Copyright: Bebo
Contribution: Münchener Micromounter 2013-10-02
Locality: Sounion Mine Nr. 19 (Chloridstollen) / Sounion-Gruben / Sounion, Revier / Lavrion (Laurion), Bergbaudistrikt / Attika (Attikí, Attica) / Griechenland
Takovit
Views (Image: 1581775361): 234
Takovit

Australien/Western Australia/Goldfields-Esperance, Region/Kalgoorlie-Boulder City/Goongarie/Carr Boyd Rocks Mine. Bildbreite 1,2 mm

Collection: Ulrich Baumgärtl
Copyright: Ulrich Baumgärtl
Contribution: Ulrich Baumgärtl 2020-02-15
Locality: Carr Boyd Rocks Mine / Goongarie / Kalgoorlie-Boulder City / Goldfields-Esperance, Region / Western Australia / Australien

Collectors Summary

Color blau grün, gelbgrün
Solubility +++ Säuren
Crystal System trigonal, R3m

Chemism

Chem­ical formula

Ni6Al2(CO3)(OH)16·4H2O

Chem­ical com­po­si­tion

Aluminium, Nickel, Kohlenstoff, Sauerstoff, Wasserstoff

Unit weight: 810.3119944 u; Number of atoms in the formula: 56

Info

Empirical formula:

Ni6Al2(CO3)(OH)16·4H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

2.99

24

42.86

1.0079470

24.1907280

Carbon

C

1.48

1

1.79

12.0107800

12.0107800

Oxygen

O

45.41

23

41.07

15.9994300

367.9868900

Aluminium

Al

6.66

2

3.57

26.9815382

53.9630764

Nickel

Ni

43.46

6

10.71

58.6934200

352.1605200

Anal­y­sis wt%

NiO : 55.31, Al2O3 : 12.58, CO2 : 5.43, H2O : 26.68 (Ref: berechnet)

Strunz 9th edi­tion incl. updates

5.DA.50

5: Carbonate (Carbonate, Nitrate)
D: Carbonate mit weitere Anionen, mit H2O
A: Mit mittelgroßen [Kationen]
50:Hydrotalkit-Gruppe

Lapis Clas­sifica­tion

V/E.03-050

V: NITRATE, CARBONATE UND BORATE
E: Wasserhaltige Carbonate, mit fremden Anionen
3: Hydrotalkit-Gruppe

Clas­sifica­tion by Hölzel

5.DD.300

5: CARBONATES NITRATES ARSENITES SULFITES SELENITES TELLURITES IODATES
D: Carbonates (+Anions +Water)
D: Hydrotalcite Series
3: Sjögrenite-Group

IMA sta­tus

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Clas­sifica­tion

Hydrotalcite Supergroup  ⇒ Hydrotalcite Group

Optical Properties

Color

blau grün, gelbgrün

Diaphane­ity (Trans­parency)

transparent

max. Birefrin­gence

0.007

Birefringence chart\! Takovite title=Birefringence chart Takovite

Michel-Levy Color Chart viewed according to the maximum birefringence (at 30μm). Mineral color is not taken into account. Click on the image to enlarge or change thickness.

RI value α / ω / n

1.598

RI value γ / ε

1.605

Ri mean

1.600

2V angle

Uniaxial (-)

Crystallography

Crystal Sys­tem

trigonal

Class (H-M)

3m

Space Group number

166

Space Group

R3m

Cell param­e­ters a (Å)

3.018

Cell param­e­ters b (Å)

-

Cell param­e­ters c (Å)

22.58

Cell param­e­ters a/b or c/a

7.482

Cell param­e­ters c/b

-

Z

0.375

Volumne (ų)

178.112

X-Ray Pow­der Diffrac­tion

7.54(100),
3.77(70),
2.553(80),
2.268(70),
1.921(60),
1.513(50),
1.483(50),
1.404(30)

XRD chart Takovite

Calculated from d-spacing and intensity at 0.1541838 nm (Cu)

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Density (g/cm³)

2.798

2.833 ( ρ calc. Mineralienatlas )

Insta­bil­ity

+++ Säuren

Preface

Author (Name, Year)

Maksimovic, 1955

References

American Mineralogist 62 (1977), 458

IMA group assignments



 
 
 
Mg6Mn3+2(CO3)(OH)16·4H2O
trigonal
R3m, R3m

 
 
 
Ni6Fe3+2Cl2(OH)16·4H2O
trigonal
R3m

 
 
 
Mg6Al2(CO3)(OH)16·4H2O
trigonal
R3m

 
 
 
Mg6Fe3+2(OH)16Cl2·4H2O
trigonal
R3m

 
 
 
Mg6Al2(OH)18·4H2O
trigonal
R3m

 
 
 
Mg6Fe23+[(OH)16|CO3]·4H2O
hexagonal
P63/mmc

 
 
 
Mg6Fe23+(CO3)(OH)16·4H2O
trigonal
R3m

 
 
 
Ni6Fe23+(CO3)(OH)16·4H2O
trigonal
R3m

 
 
 
Mg6Cr2(CO3)(OH)16·4H2O
trigonal
R3m

 
 
 
Ni6Al2(CO3)(OH)16·4H2O
trigonal
R3m

 
 
 
Mg6(Cr,Fe3+)2(OH)16Cl2·4H2O
trigonal
R3m

Refresh list

Actuality: 23. Jul 2021 - 03:29:33

Related minerals "Strunz Classification" (9. Edition) [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Takovite

Ni6Al2(CO3)(OH)16·4H2O

trigonal : 3m : R3m

5.DA.50

Reevesite

Ni6Fe23+(CO3)(OH)16·4H2O

trigonal : 3m : R3m

5.DA.50

Stichtite

Mg6Cr2(CO3)(OH)16·4H2O

trigonal : 3m : R3m

5.DA.50

Pyroaurite-3R

Mg6Fe23+(CO3)(OH)16·4H2O

trigonal : 3m : R3m

5.DA.50

Comblainite

Ni4Co3+2(CO3)(OH)12·3H2O

5.DA.50

Desautelsite

Mg6Mn3+2(CO3)(OH)16·4H2O

trigonal : 3m, 3m : R3m, R3m

5.DA.50

Hydrotalcite

Mg6Al2(CO3)(OH)16·4H2O

trigonal : 3m : R3m

5.DA.50

Droninoite

Ni6Fe3+2Cl2(OH)16·4H2O

trigonal : 3m : R3m

5.DA.50

Related minerals "Lapis Classification" [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Hydrotalcite

Mg6Al2(CO3)(OH)16·4H2O

trigonal : 3m : R3m

V/E.03-010

Stichtite

Mg6Cr2(CO3)(OH)16·4H2O

trigonal : 3m : R3m

V/E.03-020

Pyroaurite-3R

Mg6Fe23+(CO3)(OH)16·4H2O

trigonal : 3m : R3m

V/E.03-030

Desautelsite

Mg6Mn3+2(CO3)(OH)16·4H2O

trigonal : 3m, 3m : R3m, R3m

V/E.03-040

Takovite

Ni6Al2(CO3)(OH)16·4H2O

trigonal : 3m : R3m

V/E.03-050

Reevesite

Ni6Fe23+(CO3)(OH)16·4H2O

trigonal : 3m : R3m

V/E.03-060

Comblainite

Ni4Co3+2(CO3)(OH)12·3H2O

V/E.03-070

Sergeevite

Ca2Mg11(CO3)9(HCO3)4(OH)4·6H2O

V/E.03-080

Karchevskyite

[Mg18Al9(OH)54][Sr2(CO3,PO4)9(H2O,H3O)11]

V/E.03-090

Putnisite

SrCa4Cr3+8(CO3)8SO4(OH)16·23H2O

orthorhombisch : mmm : Pnma

V/E.03-100

Related minerals "Hoelzel Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Takovite

Ni6Al2(CO3)(OH)16·4H2O

trigonal : 3m : R3m

5.DD.300

'Hydrotalcite-2H' (Pol.v. Hydrotalcite)

Mg6Al2(CO3)(OH)16·4H2O

hexagonal : 6/mmm : P63/mmc

5.DD.330

'Pyroaurite-2H' (Pol.v. Pyroaurite-3R)

Mg6Fe23+[(OH)16|CO3]·4H2O

hexagonal : 6/mmm : P63/mmc

5.DD.340

'Barbertonite'

Mg6Cr2(CO3)(OH)16·4H2O

hexagonal : 6/mmm : P63/mmc

5.DD.350

Other languages

German

Takovit

Spanish

Takovita

English

Takovite

French

Takovite

Russian

Таковит

Alternative Name

Eardleyit

Eardleyita

Eardleyite

Eardlyit

Eardlyita

Eardlyite

Automatic Links to external internet sources (Responsibility is with the operator)

German pages

DeWikiPedia - search for: Takovit
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English pages

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Russian pages

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