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

Tapiolite-(Mn)

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

Skogböle, Kemiö (Kimito) Island, Southwestern Finland Region, Finland
© 2008, JGW

Show Tapiolite-(Mn) Photos (2)



Formula:
(Mn,Fe)(Ta,Nb)
 
2
O
 
6
System:TetragonalColour:Dark brown
Hardness:6 - 6½
Name:Named manganotapiolite in 1983 for its compositional relationship to ferrotapiolite.
Isostructural with:Tapiolite-(Fe)


Tapiolite-(Fe)-Tapiolite-(Mn) Series.

Classification of Tapiolite-(Mn)

IMA status:Approved
Strunz 8th edition ID:4/D.04-20
Nickel-Strunz 10th (pending) edition ID:4.DB.10

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
B : With medium-sized cations; chains of edge-sharing octahedra
Dana 8th edition ID:8.3.1.2

8 : MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
3 : AB2O6
Hey's CIM Ref.:18.1.38

18 : Niobates and Tantalates
1 : Niobates and tantalates containing neither rare earths nor U
mindat.org URL:http://www.mindat.org/min-2523.html
Please feel free to link to this page.

Type Occurrence of Tapiolite-(Mn)

Type Locality:Tiainen pegmatite, Eräjärvi area, Orivesi, Western and Inner Finland Region, Finland
Year of Discovery:1983
Geological Setting of type material:Granite pegmatite.
Associated Minerals at type locality:
Tapiolite-(Fe)

Occurrences of Tapiolite-(Mn)

Geological Setting:Granite pegmatite.

Physical Properties of Tapiolite-(Mn)

Lustre:Sub-Adamantine, Metallic, Sub-Metallic
Diaphaneity (Transparency):Opaque
Colour:Dark brown
Streak:Dark brown
Hardness (Mohs):6 - 6½
Hardness (Vickers):VHN100=711 kg/mm2
Tenacity:Brittle
Cleavage:None Observed
Fracture:Irregular/Uneven, Splintery
Density (calculated):7.72 g/cm3

Crystallography of Tapiolite-(Mn)

Crystal System:Tetragonal
Class (H-M):4/mmm (4/m 2/m 2/m) - Ditetragonal Dipyramidal
Space Group:P42/mnm {P42/m 21/n 2/m}
Cell Parameters:a = 4.762Å, c = 9.272Å
Ratio:a:c = 1 : 1.947
Unit Cell Volume:V 210.26 ų (Calculated from Unit Cell)
Z:2
Morphology:Nearly equant to short prismatic.
Twinning:Twinning is not mentioned in the original description, but may be present.
X-Ray Powder Diffraction:
d-spacingIntensity
4.24 (40)
3.37 (100)
2.59 (90)
2.38 (60)
1.75 (90)
1.68 (60)
1.50 (40)
1.41 (40)
Comments:ICDD 35-626

Optical Data of Tapiolite-(Mn)

Type:Uniaxial
Type:Anisotropic
Anisotropism:Weak
Optical Extinction:Parallel
Colour in reflected light:Gray
Internal Reflections:strong red-brown

Chemical Properties of Tapiolite-(Mn)

Formula:
(Mn,Fe)(Ta,Nb)
 
2
O
 
6
Essential elements:Mn, O, Ta
All elements listed in formula:Fe, Mn, Nb, O, Ta
Analytical Data:Compositions with Mn>Fe = 59:32 not yet reported.
Relationship of Tapiolite-(Mn) to other Species
Series:Forms a series with Tapiolite-(Fe) (see here)
Related Minerals - Nickel-Strunz Grouping):

- + 
4.DB.05Argutite
GeO
 
2
4.DB.05Cassiterite
SnO
 
2
4.DB.05Plattnerite
PbO
 
2
4.DB.05Pyrolusite
MnO
 
2
4.DB.05Rutile
TiO
 
2
4.DB.05Tripuhyite
Fe
3+
 
Sb
5+
 
O
 
4
4.DB.05Tugarinovite
MoO
 
2
4.DB.05Varlamoffite
(Sn,Fe)(O,OH)
 
2
4.DB.10Byströmite
MgSb
 
2
O
 
6
4.DB.10Tapiolite-(Fe)
(Fe,Mn)(Ta,Nb)
 
2
O
 
6
4.DB.10Ordoñezite
ZnSb
 
2
O
 
6
4.DB.15bAkhtenskite
ε-Mn
4+
 
O
 
2
4.DB.15cNsutite
(Mn
4+
 
,Mn
2+
 
)(O,OH)
 
2
4.DB.15aParamontroseite
V
4+
 
O
 
2
4.DB.15aRamsdellite
Mn
4+
 
O
 
2
4.DB.20Scrutinyite
alpha-PbO
 
2
4.DB.25Ishikawaite
U
4+
 
Fe
2+
 
Nb
 
2
O
 
8
4.DB.25Ixiolite
(Ta,Nb,Sn,Fe,Mn)
 
4
O
 
8
4.DB.25Samarskite-(Y)
(Y,Fe
3+
 
,Fe
2+
 
,U,Th,Ca)
 
2
(Nb,Ta)
 
2
O
 
8
4.DB.25Srilankite
Ti
 
2
ZrO
 
6
4.DB.25Yttrocolumbite-(Y)
Y(U
4+
 
,Fe
2+
 
)Nb
 
2
O
 
8
4.DB.25Calciosamarskite
(Ca,Fe
3+
 
,Y)
 
2
(Nb,Ta,Ti)
 
2
O
 
8
4.DB.25Samarskite-(Yb)
(Yb,Fe
3+
 
)
 
2
(Nb,Ta)
 
2
O
 
8
4.DB.30Ferberite
FeWO
 
4
4.DB.30Hübnerite
MnWO
 
4
4.DB.30Sanmartinite
(Zn,Fe)WO
 
4
4.DB.30Krasnoselskite
CoWO
 
4
4.DB.30Heftetjernite
ScTaO
 
4
4.DB.30Huanzalaite
MgWO
 
4
4.DB.35Columbite-(Fe)
FeNb
 
2
O
 
6
4.DB.35Tantalite-(Fe)
FeTa
 
2
O
 
6
4.DB.35Columbite-(Mn)
(Mn,Fe)(Nb,Ta)
 
2
O
 
6
4.DB.35Tantalite-(Mn)
MnTa
 
2
O
 
6
4.DB.35Columbite-(Mg)
(Mg,Fe,Mn)(Nb,Ta)
 
2
O
 
6
4.DB.35Qitianlingite
(Fe,Mn)
 
2
(Nb,Ta)
 
2
WO
 
10
4.DB.35Magnocolumbite
4.DB.35Tantalite-(Mg)
(Mg,Fe
2+
 
)(Ta,Nb)
 
2
O
 
6
4.DB.40Ferrowodginite
FeSnTa
 
2
O
 
8
4.DB.40Lithiotantite
Li(Ta,Nb)
 
3
O
 
8
4.DB.40Lithiowodginite
LiTa
 
3
O
 
8
4.DB.40Titanowodginite
MnTiTa
 
2
O
 
8
4.DB.40Wodginite
Mn(Sn,Ta)Ta
 
2
O
 
8
4.DB.40Ferrotitanowodginite
Fe
2+
 
TiTa
 
2
O
 
8
4.DB.40Wolframowodginite
Mn(Mn,Sn,Fe,Ta)(W,Ta,Nb)
 
2
O
 
8
4.DB.45Tivanite
V
3+
 
TiO
 
3
(OH)
4.DB.50Carmichaelite
(Ti,Cr,Fe)[O
 
2-x
(OH)
 
x
]
4.DB.55Alumotantite
AlTaO
 
4
4.DB.60Biehlite
((Sb,As)O)
 
2
[MoO
 
4
]
Related Minerals - Hey's Index Grouping:

- + 
18.1.1Lithiotantite
Li(Ta,Nb)
 
3
O
 
8
18.1.2Lueshite
NaNbO
 
3
18.1.3Natroniobite
NaNbO
 
3
18.1.4Franconite
Na
 
2
Nb
 
4
O
 
11
 · 9H
 
2
O
18.1.5Natrotantite
Na
 
2
Ta
 
4
O
 
11
18.1.6Irtyshite
Na
 
2
(Ta,Nb)
 
4
O
 
11
18.1.7Rankamaite
(Na,K,Pb,Li)
 
3
(Ta,Nb,Al)
 
11
(O,OH)
 
30
18.1.8Hydropyrochlore
(H
 
2
O,□)
 
2
Nb
 
2
(O,OH)
 
6
(H
 
2
O)
18.1.9Calciotantite
CaTa
 
4
O
 
11
18.1.10Rynersonite
Ca(Ta,Nb)
 
2
O
 
6
18.1.11Microlite Group
18.1.12Belyankinite
Ca
 
1-2
(Ti,Nb)
 
5
O
 
12
 · 9H
 
2
O (?)
18.1.13Latrappite
(Ca,Na)(Nb,Ti,Fe)O
 
3
18.1.14Hochelagaite
(Ca,Na,Sr)(Nb,Ti,Si,Al)
 
4
O
 
11
 · 8H
 
2
O
18.1.15Bariomicrolite (of Hogarth 1977)
18.1.16Parabariomicrolite
BaTa
 
4
O
 
10
(OH)
 
2
 · 2H
 
2
O
18.1.17Bariopyrochlore (of Hogarth 1977)
18.1.18Alumotantite
AlTaO
 
4
18.1.19Simpsonite
Al
 
4
(Ta,Nb)
 
3
O
 
13
(OH,F)
18.1.20Sosedkoite
(K,Na)
 
5
Al
 
2
(Ta,Nb)
 
22
O
 
60
18.1.21Thoreaulite
SnTa
 
2
O
 
6
18.1.22Stannomicrolite (of Hogarth 1977)
18.1.23Foordite
(Sn,Pb)(Nb,Ta)
 
2
O
 
6
18.1.24Changbaiite
PbNb
 
2
O
 
6
18.1.25Plumbopyrochlore (of Skorobogatova et al)
18.1.26Plumbomicrolite (of Hogarth 1977)
18.1.27Stibiocolumbite
Sb(Nb,Ta)O
 
4
18.1.28Stibiotantalite
Sb(Ta,Nb)O
 
4
18.1.29Natrobistantite
18.1.30Cesplumtantite
(Cs,Na)
 
2
(Pb,Sb
3+
 
)
 
3
Ta
 
8
O
 
24
18.1.31Stibiomicrolite (of Groat et al)
18.1.32Cesstibtantite
18.1.34Bismutotantalite
Bi(Ta,Nb)O
 
4
18.1.35Bismutomicrolite (of Hogarth 1977)
18.1.36Tantalite-(Mn)
MnTa
 
2
O
 
6
18.1.37Gerasimovskite
(Mn,Ca)(Nb,Ti)
 
5
O
 
12
 · 9H
 
2
O
18.1.39Columbite-(Mn)
(Mn,Fe)(Nb,Ta)
 
2
O
 
6
18.1.40Wodginite
Mn(Sn,Ta)Ta
 
2
O
 
8
18.1.41Ixiolite
(Ta,Nb,Sn,Fe,Mn)
 
4
O
 
8
18.1.42Columbite-(Fe)
FeNb
 
2
O
 
6
18.1.43Tantalite-(Fe)
FeTa
 
2
O
 
6
18.1.44Columbite
(Fe,Mn)(Nb,Ta)
 
2
O
 
6
18.1.45Tantalite
(Fe,Mn)(Ta,Nb)
 
2
O
 
6
18.1.46Tapiolite
(Fe,Mn)(Ta,Nb)
 
2
O
 
6
18.1.47Tapiolite-(Fe)
(Fe,Mn)(Ta,Nb)
 
2
O
 
6
18.1.48Columbite-(Mg)
(Mg,Fe,Mn)(Nb,Ta)
 
2
O
 
6
18.1.50Strüverite
(Ti,Ta,Fe)O
 
2
18.1.51
Staringite
(Fe,Mn)
 
x
(Ta,Nb)
 
2x
Sn
 
6-3x
O
 
12
Other Names for Tapiolite-(Mn)
Synonyms:
IMA1983-005Manganotapiolite
Other Languages:
German:Manganotapiolit
Russian:Манганотапиолит
Spanish:Manganotapiolita
Other Information
Fluorescence in UV light:Not fluorescent.
Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Industrial Uses:Known in only a very few specimens. Compositionally zoned.
References for Tapiolite-(Mn)
Reference List:

- + 
- Lahti, S.I., Johanson, B. & Virkkunen, M. (1983): Contribution to the chemistry of tapiolite – manganotapiolite, a new mineral. Bulletin of the Geological Society of Finland. 55, 101-109.

American Mineralogist (1985): 70: 217.

Mineralogical Record 39:132

Canadian Mineralogist (1996): 34: 631-647.


Internet Links for Tapiolite-(Mn)
Search Engines:












  • Look for Tapiolite-(Mn) on Google
    • 


  • Look for Tapiolite-(Mn) images on Google
    • External Links:
  • Look for Tapiolite-(Mn) on Webmineral
  • Look for Tapiolite-(Mn) on Athena Mineralogy
  • Look for Tapiolite-(Mn) on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Manganotapiolite details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
  • DAKOTA MATRIX offers Cabinet and Rare Species from Worldwide Localities.
  • Buy RARE Minerals from Rocks of Africa
  • Search for - Tapiolite-(Mn) - on e-Rocks Mineral Sales & Auctions
  • Pricedownminerals.com - Reverse Auctions and Shop
  • webminerals
  • The Arkenstone - Fine Minerals
  • Edwards Minerals - Fine Specimens
  • SpiriferMinerals.com - high quality low prices
  • By minerals from YourMineralCollection
  • Top quality minerals from Kristalle of California
  • Fine Minerals from Weinrich Minerals, Inc.
  • Find Tapiolite-(Mn) on www.crystalclassics.co.uk
    • Jobs:
  • Mining & Geology Jobs
    • Localities for Tapiolite-(Mn)
    
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.

    Finland
     
    

    • Western and Inner Finland Region
    

      • Orivesi
    

        • Eräjärvi area
    
    		Lahti, S.I., Johanson, B. & Virkkunen, M. (1983): Contribution to the chemistry of tapiolite – manganotapiolite, a new mineral. Bulletin of the Geological Society of Finland. 55, 101-109.
    USA
     
    

    • Maine
    

      • Franklin Co.
    

        • D Township
    
    		King, V. and Foord, E., 1994, Mineralogy of Maine, volume 1.
    

    


    

    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.
    Current server date and time: 19th Oct 2011 16:30:27     

    

		

    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