Ferrihollandite
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About Ferrihollandite
Formula:
Ba(Mn4+6Fe3+2)O16
Crystal System:
Monoclinic
Member of:
Name:
Named in 2014 by C. Biagioni, C. Capalbo, M. Lezzerini, M. Pasero for being the ferric iron analogue of hollandite.
Type Locality:
Isostructural with:
The Ba-Fe3+ end-member in the Coronadite Group was redefined as ferrihollandite (IMA 11-F; Biagioni et al., 2013).
The original type locality for hollandite is now that of ferrihollandite.
The original type locality for hollandite is now that of ferrihollandite.
Classification of Ferrihollandite
Approved
Notes:
Renamed by the IMA
Approval History:
Renamed by IMA: 2011
4.DK.
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
K : With large (+- medium-sized) cations; tunnel structures
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
K : With large (+- medium-sized) cations; tunnel structures
Chemical Properties of Ferrihollandite
Formula:
Ba(Mn4+6Fe3+2)O16
Elements listed:
Crystallography of Ferrihollandite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Cell Parameters:
a = 10.0001(7) Å, b = 5.7465(4) Å, c = 9.8076(8) Å
β = 90.713(2)°
β = 90.713(2)°
Ratio:
a:b:c = 1.74 : 1 : 1.707
Unit Cell V:
563.56 ų
Comment:
Space group P2/n. Pseudo-tetragonal. Data from Biagioni et al. (2014).
Type Occurrence of Ferrihollandite
Relationship of Ferrihollandite to other Species
Member of:
Other Members of this group:
Coronadite | Pb(Mn4+6Mn3+2)O16 | Mon. 2/m |
Cryptomelane | K(Mn4+7Mn3+)O16 | Mon. 2/m |
Ferricoronadite | Pb(Mn4+6Fe3+2)O16 | Tet. 4/m : I4/m |
Hollandite | Ba(Mn4+6Mn3+2)O16 | Mon. 2/m |
Manjiroite | Na(Mn4+7Mn3+)O16 | Tet. 4/m : I4/m |
Strontiomelane | Sr(Mn4+6Mn3+2)O16 | Mon. 2/m : P21/b |
Common Associates
Associated Minerals Based on Photo Data:
Related Minerals - Nickel-Strunz Grouping
4.DK.05 | Akaganeite | (Fe3+,Ni2+)8(OH,O)16Cl1.25 · nH2O | Mon. 2/m |
4.DK.05a | Coronadite | Pb(Mn4+6Mn3+2)O16 | Mon. 2/m |
4.DK.05a | Cryptomelane | K(Mn4+7Mn3+)O16 | Mon. 2/m |
4.DK.05a | Hollandite | Ba(Mn4+6Mn3+2)O16 | Mon. 2/m |
4.DK.05a | Manjiroite | Na(Mn4+7Mn3+)O16 | Tet. 4/m : I4/m |
4.DK.05b | Mannardite | Ba(Ti4+6V3+2)O16 | Tet. 4/m : I41/a |
4.DK.05b | Priderite | K(Ti4+7Fe3+)O16 | Tet. |
4.DK.05b | Redledgeite | Ba(Ti4+6Cr3+2)O16 | Tet. |
4.DK.05b | Henrymeyerite | Ba(Ti4+7Fe2+)O16 | Tet. 4/m : I4/m |
4.DK.05a | Strontiomelane | Sr(Mn4+6Mn3+2)O16 | Mon. 2/m : P21/b |
4.DK.10 | Romanèchite | (Ba,H2O)2(Mn4+,Mn3+)5O10 | Mon. 2/m |
4.DK.10 | Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O | Mon. 2/m : P2/m |
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
References for Ferrihollandite
Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Potter, Russell M. and Rossman, George R. (1979) The tetravalent manganese oxides: identification, hydration, and structural relationships by infrared spectroscopy. American Mineralogist. 64: 1199-1218.
Biagioni, C., Capalbo, C., Pasero, M.(2013) Nomenclature tunings in the hollandite supergroup. European Journal of Mineralogy. 25: 85-90.
Biagioni, C., Capalbo, C., Lezzerini, M., Pasero, M. (2014)Ferrihollandite, BaMn4+6Fe3+2O16, from Apuan Alps, Tuscany, Italy: description and crystal structure. European Journal of Mineralogy. 26: 171-178.
Internet Links for Ferrihollandite
mindat.org URL:
https://www.mindat.org/min-43558.html
Please feel free to link to this page.
Please feel free to link to this page.
External Links:
Mineral Dealers:
Localities for Ferrihollandite
Locality List




All localities listed without proper references should be considered as questionable.
India (TL) | |
| Biagioni, C., Capalbo, C., Pasero, M. (2013): Nomenclature tunings in the hollandite supergroup. European Journal of Mineralogy 25, 85-90. |
Italy | |
| Biagioni, C., Capalbo, C., Lezzerini, M., Pasero, M. (2014): Ferrihollandite, BaMn4+6Fe3+2O16, from Apuan Alps, Tuscany, Italy: description and crystal structure. European Journal of Mineralogy 26, 171-178.; Cristian Biagioni |
Sweden | |
| Ödman, O.H. (1950): Manganese mineralization in the Ultevis district, Jokkmokk, North Sweden. Part 2: Mineralogical notes. Sveriges Geologiska Undersökning. Serie C 516. 1-27; Biagioni, C., Capalbo, C., Pasero, M. (2013): Nomenclature tunings in the hollandite supergroup. European Journal of Mineralogy 25, 85-90. |
Ödman, O.H. (1950): Manganese mineralization in the Ultevis district, Jokkmokk, North Sweden. Part 2: Mineralogical notes. Sveriges Geologiska Undersökning. Serie C 516. 1-27; Post, J.E., Von Dreele, R.B., Buseck, P.R. (1982): Symmetry and cation displacements in hollandites: structure refinements of hollandite, cryptomelane and priderite. Acta Crystallogr. B, 38,1056–1065.; Biagioni, C., Capalbo, C., Pasero, M. (2013): Nomenclature tunings in the hollandite supergroup. European Journal of Mineralogy 25, 85-90. | |
Ödman, O.H. (1950): Manganese mineralization in the Ultevis district, Jokkmokk, North Sweden. Part 2: Mineralogical notes. Sveriges Geologiska Undersökning. Serie C 516. 1-27; Biagioni, C., Capalbo, C., Pasero, M. (2013): Nomenclature tunings in the hollandite supergroup. European Journal of Mineralogy 25, 85-90. |
Sörhårås, Ultevis, Jokkmokk, Norrbotten, Sweden