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Takanelite

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Marfa, Presidio Co., Texas, USA
© 2009, JGW




Formula:
(Mn,Ca)Mn
 
4
O
 
9
 · H
 
2
O
System:HexagonalColour:Grey, black, gray-brown
Lustre:DullHardness:5
Name:Named after Katsutoshi Takane (1899-1945), Professor of Mineralogy, Tohoku University, Sendai, Japan.


Birnessite Group. Ranciéite-Takanelite Series.
The manganese analogue of Ranciéite.


Classification of Takanelite

IMA status:Approved 1970
Strunz 8th edition ID:4/D.12-20
Nickel-Strunz 10th (pending) edition ID:4.FL.40

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
F : Hydroxides (without V or U)
L : Hydroxides with H2O +- (OH); sheets of edge-sharing octahedra
Dana 8th edition ID:7.10.1.2

7 : MULTIPLE OXIDES
10 : AB4X9
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Type Occurrence of Takanelite

Type Locality:Nomura mine, Ehime prefecture, Shikoku Island, Japan
Year of Discovery:1971

Physical Properties of Takanelite

Lustre:Dull
Colour:Grey, black, gray-brown
Streak:Dark brown
Hardness (Mohs):5

Crystallography of Takanelite

Crystal System:Hexagonal
Cell Parameters:a = 8.68Å, c = 9Å
Ratio:a:c = 1 : 1.037
Unit Cell Volume:V 587.24 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction:
d-spacingIntensity
7.57 (100)
4.43 (18b)
3.765 (25)
2.462 (15)
2.349 (20)
2.065 (10)
1.420 (17)
Comments:Close to PXRD pattern of ranciéite, variable with hydration state.

Chemical Properties of Takanelite

Formula:
(Mn,Ca)Mn
 
4
O
 
9
 · H
 
2
O
Essential elements:H, Mn, O
All elements listed in formula:Ca, H, Mn, O

Relationship of Takanelite to other Species

Series:Forms a series with Ranciéite (see here)
Structurally related to group(s):
Birnessite Group
Related Minerals - Nickel-Strunz Grouping):

- +
4.FL.05Woodallite
Mg
 
6
Cr
 
2
(OH)
 
16
Cl
 
2
 · 4H
 
2
O
4.FL.05Iowaite
Mg
 
6
Fe
3+
2
(OH)
 
16
Cl
 
2
 · 4H
 
2
O
4.FL.05Jamborite
(Ni
2+
 
,Ni
3+
 
,Co,Fe)(OH)
 
2
(OH,S,H
 
2
O)
4.FL.05Meixnerite
Mg
 
6
Al
 
2
(OH)
 
18
 · 4H
 
2
O
4.FL.05Muskoxite
Mg
 
7
Fe
 
4
O
 
13
 · 10H
 
2
O
4.FL.05Fougèrite
(Fe
2+
 
,Mg)
 
6
Fe
3+
2
(OH)
 
18
 · 4H
 
2
O
4.FL.10Hydrocalumite
Ca
 
2
Al(OH)
 
7
 · 2H
 
2
O
4.FL.15Kuzelite
Ca
 
4
Al
 
2.4
(OH)
 
12.8
(SO
 
4
) · 6H
 
2
O
4.FL.20Aurorite
(Mn
2+
 
,Ag,Ca)Mn
4+
3
O
 
7
 · 3H
 
2
O
4.FL.20Chalcophanite
(Zn,Fe,Mn)Mn
 
3
O
 
7
 · 3H
 
2
O
4.FL.20Ernienickelite
NiMn
 
3
O
 
7
 · 3H
 
2
O
4.FL.20Jianshuiite
(Mg,Mn)Mn
 
3
O
 
7
 · 3H
 
2
O
4.FL.25Woodruffite
Zn(Mn
4+
 
,Mn
3+
 
)
 
5
O
 
10
·3½H
 
2
O
4.FL.30Asbolane
(Ni,Co)
 
2-x
Mn
4+
 
(O,OH)
 
4
 · nH
 
2
O
4.FL.35Buserite
Na
 
4
Mn
 
14
O
 
27
 · 21H
 
2
O
4.FL.40Ranciéite
(Ca,Mn)Mn
 
4
O
 
9
 · 3H
 
2
O
4.FL.45Birnessite
(Na,Ca)
 
0.5
(Mn
4+
 
,Mn
3+
 
)
 
2
O
 
4
 · 1.5H
 
2
O
4.FL.55Cianciulliite
Mn(Mg,Mn)
 
2
Zn
 
2
(OH)
 
10
 · 2-4H
 
2
O
4.FL.60Jensenite
Cu
 
3
[TeO
 
6
] · 2H
 
2
O
4.FL.65Leisingite
Cu(Mg,Cu,Fe,Zn)
 
2
[TeO
 
6
] · 6H
 
2
O
4.FL.70Akdalaite
4Al
 
2
O
 
3
 · H
 
2
O
4.FL.75Cafetite
(Ca,Mg)(Fe,Al)
 
2
Ti
 
4
O
 
12
 · 4H
 
2
O
4.FL.80Mourite
UMo
 
5
O
 
12
(OH)
 
10
4.FL.85Deloryite
Cu
 
4
(UO
 
2
)(MoO
 
4
)
 
2
(OH)
 
6

Other Names for Takanelite

Other Languages:
German:Takanelit
Takanelith
Japanese:高根鉱
Simplified Chinese:塔锰矿
Spanish:Takanelita

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 Takanelite

Reference List:

- +
Journal of the Japanese Association Min. Petr. Econ. Geol. (1971), 65, 1-15.

American Mineralogist (1971): 56: 1487.

American Mineralogist (1991): 76: 1426-1430.

Internet Links for Takanelite

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  • Look for Takanelite on Mineralien Atlas
  • Raman and XRD data at RRUFF project[Link Broken?]
  • American Mineralogist Crystal Structure Database[Link Broken?]
  • Takanelite details from Handbook of Mineralogy (PDF)[Link Broken?]
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    • Localities for Takanelite

    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
     
    • Tasmania
      • Hampshire district
        • Kara Mines
    		Whitehead, 1990; Ralph Bottril 6/10/2005.
    Austria
     
    • Styria
      • Oberhaag
        • Lieschengraben
    		Taucher, J. & Postl, W. (1992), Exel, R. (1993)
    China
     
    • Shaanxi Province
      • Hanzhong Prefecture
        • Mian Co.
    		Zhongtang Yang, Zhiming Li, Gengbiao Qiao, Zhongbao Song, Xiaozhou Liu, and Wei Wan (2008): Geology and Prospecting 44(2), 38-44
    Germany
     
    • Bavaria
      • Upper Palatinate
        • Oberpfälzer Wald
          • Vohenstrauß
            • Waidhaus
    		M.E. Ciriotti - 05.06.2008 - Probed
    Japan
     
    • Shikoku Island
      • Ehime prefecture
    		J.Jap.Assoc.Min.Petr.Econ.Geol.(1971) 65, 1-15
    Russia
     
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
          • Khibiny Massif
            • Eveslogchorr Mt
              • Astrophyllite Stream
    		Pekov et al (2005) New Data on Minerals Vol 40 pp11-16
          • Lovozero Massif
    South Korea
     
    • Gyeongsangbuk-do (Kyongsang-bukto; Gyeongsangbugdo)
      • Bonghwa-gun
    		Amer. Mineral. 76, 1426-1430
    Switzerland
     
    • Grischun (Grisons; Graubünden)
      • Albula Valley
        • Oberhalbstein (Surses; Sursass)
          • Tinizong (Tinzen)
    • Wallis (Valais)
      • Turtmann Valley
        • Pipjitälli
    		Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 399.
    USA
     
    • Texas
      • Presidio Co.
    		Handbook of Mineralogy
    Mineral and/or Locality
    Search Google
     
    Copyright © Jolyon Ralph and Ida Chau 1993-2011. 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.
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