Ferrohögbomite-2N2S
A valid IMA mineral species
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About Ferrohögbomite-2N2S
Formula:
[(Fe2+,Mg,Zn,Al)3(Al,Ti,Fe3+)8O15(OH)]2
Colour:
Reddish brown to brownish black
Lustre:
Adamantine
Hardness:
6 - 7
Specific Gravity:
4.04 (Calculated)
Crystal System:
Hexagonal
Member of:
Name:
Named for dominant iron and its relation to högbomite. The prefix ferro- reflects that it is a högbomite where the spinel module is dominated by the hercynite component (FeAl2O6). The root is for Arvid Gustaf Högbom (11 January 1857, Vännäs, Västerbotten, Sweden - 19 January 1940, Uppsala, Sweden), Professor of Mineralogy and Geology at Uppsala University. The suffix designates the polysome. The numbers refers to the total number of Nolanite (N) and Spinel (S) modules in the crystal structure.
A polysomatic Högbomite Group mineral composed of two nolanite modules (N) and two spinel modules (S) where the spinel modules have ideally hercynite composition.
Unique Identifiers
Mindat ID:
11114
Long-form identifier:
mindat:1:1:11114:4
GUID
(UUID V4):
(UUID V4):
4f313c0d-f620-4fed-b18a-3daaac632f3b
IMA Classification of Ferrohögbomite-2N2S
Approved
IMA Formula:
(Fe,Mg,Zn,Al)3(Al,Ti,Fe)8O15(OH)
Approval year:
2001
First published:
2002
Classification of Ferrohögbomite-2N2S
4.CB.
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
C : Metal: Oxygen = 2: 3,3: 5, and similar
B : With medium-sized cations
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
C : Metal: Oxygen = 2: 3,3: 5, and similar
B : With medium-sized cations
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Symbol | Source | Reference |
---|---|---|
Fhög-2N2S | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Ferrohögbomite-2N2S
Adamantine
Transparency:
Translucent
Colour:
Reddish brown to brownish black
Streak:
Light brown to brown
Hardness:
6 - 7 on Mohs scale
Hardness Data:
Measured
Tenacity:
Brittle
Cleavage:
Very Good
Distinct after {001}.
Distinct after {001}.
Fracture:
Conchoidal
Density:
4.04 g/cm3 (Calculated)
Optical Data of Ferrohögbomite-2N2S
Type:
Uniaxial (-)
RI values:
nω = 1.850 nε = 1.830
Max Birefringence:
δ = 0.020
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
Very High
Pleochroism:
Visible
Comments:
Orange-brown to yellow.
Chemistry of Ferrohögbomite-2N2S
Mindat Formula:
[(Fe2+,Mg,Zn,Al)3(Al,Ti,Fe3+)8O15(OH)]2
Crystallography of Ferrohögbomite-2N2S
Crystal System:
Hexagonal
Class (H-M):
6mm - Dihexagonal Pyramidal
Space Group:
P63mc
Cell Parameters:
a = 5.712(1) Å, c = 18.317(7) Å
Ratio:
a:c = 1 : 3.207
Unit Cell V:
517.56 ų (Calculated from Unit Cell)
Z:
2
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
2.948 Å | (32) |
2.860 Å | (53) |
2.603 Å | (88) |
2.427 Å | (100) |
2.392 Å | (28) |
2.053 Å | (34) |
1.597 Å | (34) |
1.475 Å | (44) |
1.430 Å | (56) |
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
Stage 4a: Earth’s earliest continental crust | >4.4-3.0 |
19 : Granitic intrusive rocks | |
Near-surface Processes | |
26 : Hadean detrital minerals | |
Stage 5: Initiation of plate tectonics | <3.5-2.5 |
40 : Regional metamorphism (greenschist, amphibolite, granulite facies) |
Geological Setting:
Metamorphic environments (T from ≤500°C to 730°C).
Type Occurrence of Ferrohögbomite-2N2S
General Appearance of Type Material:
Euhedral grains up to 0.3 mm in size, many with hexagonal contours.
Place of Conservation of Type Material:
Museum of Natural History, Bern, Switzerland.
Geological Setting of Type Material:
An isolated rock of unknown provenance found in the desert.
Associated Minerals at Type Locality:
Synonyms of Ferrohögbomite-2N2S
Other Language Names for Ferrohögbomite-2N2S
Relationship of Ferrohögbomite-2N2S to other Species
Member of:
Other Members of this group:
Ferrohögbomite-6N12S | [(Fe2+,Mg,Zn)5(Al,Ti,Fe3+)12O23(OH)]6 | Trig. 3m (3 2/m) : R3m |
Common Associates
Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat Grouping
4.CB. | Magnesiohögbomite-6N12S | Mg5Al11TiO23(OH) |
4.CB. | Zhenruite | (MoO3)2 · H2O |
4.CB. | Pengite | (Pb8Sb3+3)Σ11Sb5+9O35 |
4.CB. | Virgilluethite | MoO3 · H2O |
4.CB.05 | Brizziite | NaSb5+O3 |
4.CB.05 | Corundum | Al2O3 |
4.CB.05 | Ecandrewsite | (Zn,Fe2+,Mn2+)TiO3 |
4.CB.05 | Eskolaite | Cr2O3 |
4.CB.05 | Geikielite | MgTiO3 |
4.CB.05 | Hematite | Fe2O3 |
4.CB.05 | Ilmenite | Fe2+TiO3 |
4.CB.05 | Karelianite | V3+2O3 |
4.CB.05 | Melanostibite | Mn2+2Fe3+Sb5+O6 |
4.CB.05 | Pyrophanite | Mn2+TiO3 |
4.CB.05 | Akimotoite | (Mg,Fe2+)SiO3 |
4.CB.05 | Auroantimonate | AuSbO3 |
4.CB.05 | UM1998-11-O-AuHSb | Au+2Sb3+O2(OH) |
4.CB.05 | Tistarite | Ti3+2O3 |
4.CB.05 | Unnamed (Fe-Cr Oxide) | FeCrO3 |
4.CB.05 | Hemleyite | (Fe2+0.48Mg0.37Ca0.04Na0.04Mn2+0.03Al0.03Cr3+0.01)sum=1.00Si1.00O3 |
4.CB.10 | Avicennite | Tl2O3 |
4.CB.10 | Bixbyite-(Mn) | Mn3+2O3 |
4.CB.10 | Bixbyite-(Fe) | (Fe,Mn)2O3 |
4.CB.15 | Armalcolite | (Mg,Fe2+)Ti2O5 |
4.CB.15 | Sassite | Ti3+2Ti4+O5 |
4.CB.15 | Pseudobrookite | Fe2TiO5 |
4.CB.15 | Ferropseudobrookite | Fe2+Ti2O5 |
4.CB.15 | Griffinite | Al2TiO5 |
4.CB.15 | Pseudobrookite Group | |
4.CB.20 | Zincohögbomite-2N2S | [(Zn,Al,Fe2+)3(Al,Fe3+,Ti)8O15(OH)]2 |
4.CB.20 | Zincohögbomite-2N6S | [(Zn,Mg)7(Al,Fe3+,Ti)16O31(OH)]2 |
4.CB.20 | Magnesiohögbomite-6N6S | [(Mg,Fe2+)3(Al,Ti,Fe3+)8O15(OH)]6 |
4.CB.20 | Magnesiohögbomite-2N3S | [(Mg,Fe2+,Zn)4(Al,Ti,Fe3+)10O19(OH)]2 |
4.CB.20 | Magnesiohögbomite-2N2S | [(Mg,Fe2+)3[Al7(Ti,Fe3+)]O15(OH)]2 |
4.CB.20 | Ferrohögbomite-6N12S | [(Fe2+,Mg,Zn)5(Al,Ti,Fe3+)12O23(OH)]6 |
4.CB.20 | Magnesiohögbomite-2N4S | (Mg8.43Fe2+1.57)sum=10Al22Ti4+2O46(OH)2 |
4.CB.20 | Magnesiobeltrandoite-2N3S | (Mg6Al2)(Al18Fe3+2)O38(OH)2 |
4.CB.20 | Zincovelesite-6N6S | Zn3(Fe3+,Mn3+,Al,Ti)8O15(OH) |
4.CB.25 | Pseudorutile | Fe2Ti3O9 |
4.CB.25 | Kleberite | FeTi6O11(OH)5 |
4.CB.30 | Berdesinskiite | V3+2TiO5 |
4.CB.30 | Oxyvanite | V3+2V4+O5 |
4.CB.30 | Kaitianite | Ti3+2Ti4+O5 |
4.CB.35 | Olkhonskite | (Cr,V)2Ti3O9 |
4.CB.35 | Schreyerite | V3+2Ti3O9 |
4.CB.35 | Machiite | Al2Ti3O9 |
4.CB.35 | Vestaite | (Ti4+Fe2+)Ti4+3O9 |
4.CB.40 | Kamiokite | Fe2Mo3O8 |
4.CB.40 | Nolanite | V3+8Fe3+2O14(OH)2 |
4.CB.40 | Rinmanite | Zn2Sb2Mg2Fe4O14(OH)2 |
4.CB.40 | Iseite | Mn2Mo3O8 |
4.CB.40 | Majindeite | Mg2Mo3O8 |
4.CB.45 | Claudetite | As2O3 |
4.CB.45 | Stibioclaudetite | AsSbO3 |
4.CB.50 | Arsenolite | As2O3 |
4.CB.50 | Senarmontite | Sb2O3 |
4.CB.55 | Valentinite | Sb2O3 |
4.CB.60 | Bismite | Bi2O3 |
4.CB.65 | Sphaerobismoite | Bi2O3 |
4.CB.70 | Sillénite | Bi12SiO20 |
4.CB.75 | Kyzylkumite | V3+Ti2O5(OH) |
4.CB.80 | Tietaiyangite | Fe3+4Fe2+TiO9 |
4.CB.85 | Liuite | FeTiO3 |
4.CB.90 | Luogufengite | Fe2O3 |
4.CB.95 | Wangdaodeite | FeTiO3 |
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.
Internet Links for Ferrohögbomite-2N2S
mindat.org URL:
https://www.mindat.org/min-11114.html
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References for Ferrohögbomite-2N2S
Localities for Ferrohögbomite-2N2S
Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
Struck out - Mineral was erroneously reported from this locality.
Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
All localities listed without proper references should be considered as questionable.
Algeria (TL) | |
| C. Hejny et al. (2002) |
Antarctica | |
| C. Hejny et al. (2002) |
Australia | |
| Wilson (1977) +1 other reference |
Madagascar | |
| Rakotonandrasana et al. (2010) |
| Rakotonandrasana et al. (2010) |
Rakotonandrasana et al. (2010) | |
Rakotonandrasana et al. (2010) | |
| Rakotonandrasana et al. (2010) +1 other reference |
| Rakotonandrasana et al. (2010) |
Rakotonandrasana et al. (2010) | |
Myanmar | |
| Pavel M. Kartashov analytical data |
USA | |
| Contributions to Mineralogy and ... +1 other reference |
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Myan Gyi mine, Thurein-taung, Kyauk-Pyat-That, Mogok Township, Pyin-Oo-Lwin District, Mandalay Region, Myanmar