Bixbyite-(Mn)
A valid IMA mineral species - grandfathered
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About Bixbyite-(Mn)
Formula:
Mn3+2O3
May contain up to about 50 mol% Fe2O3, where it transitions into bixbyite-(Fe). In the type material, the Mn:Fe ratio is nearly 1.1.
Colour:
Black
Lustre:
Metallic
Hardness:
6 - 6½
Specific Gravity:
4.945
Crystal System:
Isometric
Name:
For Maynard Bixby (1853-1935), prospector, miner, mine broker, author, explorer of the Thomas Range, and mineral dealer of Salt Lake City, Utah, USA, who collected and provided the first specimens. He published several editions of the authoritative "Catalogue of Utah Minerals and Localities" and authored articles on several mineral localities in the western states. The suffix was added in 2021 to distinguish it from bixbyite-(Fe).
The Mn analogue of bixbyite-(Fe); newly defined in December 2021 (IMA 21-H). Belongs to the Bixbyite Series.
An orthorhombic analogue (space group Pcab) of Mn3+2O3 is known.
The Thomas Range bixbyites may bear exomorphically exsolved jacobsite on its surfaces.
An orthorhombic analogue (space group Pcab) of Mn3+2O3 is known.
The Thomas Range bixbyites may bear exomorphically exsolved jacobsite on its surfaces.
Unique Identifiers
Mindat ID:
691
Long-form identifier:
mindat:1:1:691:2
GUID
(UUID V4):
(UUID V4):
cd381f96-dde8-4c47-ae4b-be0fbed7d836
IMA Classification of Bixbyite-(Mn)
Approved, 'Grandfathered' (first described prior to 1959)
IMA status notes:
Redefined by the IMA
First published:
1897
Approval history:
Redefined IMA 21-H - Miyawaki et al. (2022).
Classification of Bixbyite-(Mn)
4.CB.10
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
4.3.7.2
4 : SIMPLE OXIDES
3 : A2X3
4 : SIMPLE OXIDES
3 : A2X3
7.19.1
7 : Oxides and Hydroxides
19 : Oxides of Mn and Fe
7 : Oxides and Hydroxides
19 : Oxides of Mn and Fe
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
Symbol | Source | Reference |
---|---|---|
Bxb | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Bxb | Whitney & Evans (2010) | Whitney, D.L. and Evans, B.W. (2010) Abbreviations for names of rock-forming minerals. American Mineralogist, 95, 185–187 doi:10.2138/am.2010.3371 |
Bxb | Warr (2020) | Warr, L.N. (2020) Recommended abbreviations for the names of clay minerals and associated phases. Clay Minerals, 55, 261–264 doi:10.1180/clm.2020.30 |
Physical Properties of Bixbyite-(Mn)
Metallic
Transparency:
Opaque
Colour:
Black
Streak:
Black
Hardness:
6 - 6½ on Mohs scale
Hardness:
VHN100=946 - 1402 kg/mm2 - Vickers
Cleavage:
Imperfect/Fair
on {111}, in traces
on {111}, in traces
Fracture:
Irregular/Uneven
Density:
4.945 g/cm3 (Measured) 5.031 g/cm3 (Calculated)
Optical Data of Bixbyite-(Mn)
Type:
Isotropic
Reflectivity:
Wavelength | R |
---|---|
400 nm | 24.7% |
420 nm | 24.1% |
440 nm | 23.5% |
460 nm | 23.0% |
480 nm | 22.8% |
500 nm | 22.9% |
520 nm | 23.3% |
540 nm | 23.6% |
560 nm | 23.5% |
580 nm | 23.2% |
600 nm | 22.9% |
620 nm | 22.7% |
640 nm | 22.4% |
660 nm | 22.2% |
680 nm | 22.2% |
700 nm | 22.1% |
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 24.7%.
Chemistry of Bixbyite-(Mn)
Mindat Formula:
Mn3+2O3
May contain up to about 50 mol% Fe2O3, where it transitions into bixbyite-(Fe). In the type material, the Mn:Fe ratio is nearly 1.1.
May contain up to about 50 mol% Fe2O3, where it transitions into bixbyite-(Fe). In the type material, the Mn:Fe ratio is nearly 1.1.
Elements listed:
Common Impurities:
Al,Mg,Si,Ti
Crystallography of Bixbyite-(Mn)
Crystal System:
Isometric
Class (H-M):
m3 (2/m 3) - Diploidal
Space Group:
Ia3
Cell Parameters:
a = 9.411 Å
Unit Cell V:
833.50 ų (Calculated from Unit Cell)
Z:
16
Morphology:
Cubes, rarely modified by {112} or {111}, commonly striated and occasionally deeply pitted, to 6 cm; also massive.
Twinning:
On {111}, as penetration twins.
Crystallographic forms of Bixbyite-(Mn)
Crystal Atlas:
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
---|---|---|---|---|---|---|---|
0009391 | Bixbyite-(Mn) | Geller S (1971) Structures of alpha-Mn203, (MnO.983Fe0.017)203 and (Mn0.37Fe0.63)2O3 and relation to magnetic ordering Acta Crystallographica B27 821-828 | 1971 | 0 | 293 | ||
0009392 | Bixbyite-(Mn) | Geller S (1971) Structures of alpha-Mn203, (MnO.983Fe0.017)203 and (Mn0.37Fe0.63)2O3 and relation to magnetic ordering Acta Crystallographica B27 821-828 | 1971 | 0 | 293 | ||
0018124 | Bixbyite-(Mn) | Zachariasen W (1928) Ueber die Kristallstruktur von Bixbyit, sowie vom kuenstlichen Mn2 O3. _cod_database_code 1011264 Zeitschrift fur Kristallographie 67 455-464 | 1928 | 0 | 293 | ||
0018126 | Bixbyite-(Mn) | Pauling L, Shappell M (1930) The Crystal Structure of Bixbyite and the C-Modification of the Sesquioxides _cod_database_code 1011266 Zeitschrift fur Kristallographie 75 128-142 | 1930 | 0 | 293 | ||
0010577 | Bixbyite-(Mn) | Dachs H (1956) Die kristallstruktur des bixbyits (Fe,Mn)2O3 Zeitschrift fur Kristallographie 107 370-395 | 1956 | 0 | 293 | ||
0017467 | Bixbyite-(Mn) | Zachariasen W (1928) Untersuchungen ueber die Kristallstruktur von Sesquioxyden und Verbindungen ABO3 _cod_database_code 1010586 Skrifter utgitt av det Norske Videnskaps-Akademi i Oslo 1 1-165 | 1928 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
2.72 Å | (100) |
1.664 Å | (30) |
3.84 Å | (25) |
2.01 Å | (14) |
1.845 Å | (14) |
1.4191 Å | (14) |
2.35 Å | (12) |
Comments:
Recorded on synthetic Mn2O3
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
High-𝑇 alteration and/or metamorphism | |
32 : Ba/Mn/Pb/Zn deposits, including metamorphic deposits |
Geological Setting:
In rhyolites; in metamorphosed manganese ores.
Type Occurrence of Bixbyite-(Mn)
Place of Conservation of Type Material:
Yale University, New Haven, Connecticut, USA, number 1.6369.
Geological Setting of Type Material:
In lithophysal cavities in rhyolite.
Associated Minerals at Type Locality:
Synonyms of Bixbyite-(Mn)
Other Language Names for Bixbyite-(Mn)
Russian:Биксбиит
Spanish:Bixbyita
Manganbixbyita
Sitaparita
Manganbixbyita
Sitaparita
Relationship of Bixbyite-(Mn) to other Species
Forms a series with:
Common Associates
Associated Minerals Based on Photo Data:
386 photos of Bixbyite-(Mn) associated with Topaz | Al2(SiO4)(F,OH)2 |
53 photos of Bixbyite-(Mn) associated with Pseudobrookite | Fe2TiO5 |
35 photos of Bixbyite-(Mn) associated with Hematite | Fe2O3 |
28 photos of Bixbyite-(Mn) associated with Quartz | SiO2 |
19 photos of Bixbyite-(Mn) associated with Rhyolite | |
15 photos of Bixbyite-(Mn) associated with Fluorite | CaF2 |
14 photos of Bixbyite-(Mn) associated with Calcite | CaCO3 |
13 photos of Bixbyite-(Mn) associated with Red Beryl | Be3Al2Si6O18 |
12 photos of Bixbyite-(Mn) associated with Mangan-diaspore | (Al,Mn)O(OH) |
12 photos of Bixbyite-(Mn) associated with Manganite | Mn3+O(OH) |
Related Minerals - Strunz-mindat Grouping
4.CB. | Ferrohögbomite-2N2S | [(Fe2+,Mg,Zn,Al)3(Al,Ti,Fe3+)8O15(OH)]2 |
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-(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.40 | Rinmanite-(Zn) | Zn2Sb2(Fe3+4Zn2)O14(OH)2 |
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 Bixbyite-(Mn)
mindat.org URL:
https://www.mindat.org/min-691.html
Please feel free to link to this page.
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Mineral Dealers:
References for Bixbyite-(Mn)
Reference List:
Fermor, Lewis Leigh (1909) The manganese ore deposits of India. Memoirs of the Geological Survey of India Vol. 37. Geological Survey of India
Orcel, Jean, Pavlovitch, Stoyan (1931) Les caractères microscopiques des oxydes de manganèse et des manganites naturels (Détermination de leurs pouvoirs réflecteurs) Bulletin de Minéralogie, 54 (5) 108-179 doi:10.3406/bulmi.1931.4130
Mason, Brian (1942) Bixbyite from Långban. Geologiska Föreningen i Stockholm Förhandlingar, 64 (2) 117-125 doi:10.1080/11035894209445090
Ramdohr, Paul (1969) The Ore Minerals and their Intergrowths. Pergamon Press, Oxford. 1174pp. doi:10.1016/c2013-0-10027-x
Moore, Paul B., Araki, Takaharu (1976) Braunite: its structure and relationship to bixbyite, and some insights on the genealogy of fluorite derivative structures. American Mineralogist, 61 (11-12) 1226-1240
de Villiers, Johan P., Buseck, Peter R. (1989) Stacking variations and nonstoichiometry in the bixbyite-braunite polysomatic mineral group. American Mineralogist, 74 (11-12) 1325-1336
Bevan, D. J. M., Martin, R. L. (2008) The role of the coordination defect: A new structural description of four fluorite-related sesquioxide minerals, bixbyite (Mn2O3), braunite (Mn7SiO12), braunite II (CaMn14SiO24), parwelite (Mn10Sb2As2Si2O24), and their structural relationships. Journal of Solid State Chemistry, 181. 2250-2259 doi:10.1016/j.jssc.2008.04.046
Localities for Bixbyite-(Mn)
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.
Argentina | |
| Schiller et al. (1931) +2 other references |
Australia | |
| T.Kwak & P.Abeysinghe: "Rare earth and ... +1 other reference |
| The Australian Institute of Mining and Metallurgy (1977) |
Jones et al. (2013) | |
Austria | |
| Pichler (2009) |
Exel (1993) | |
| Strasser (1989) |
| BRANDSTÄTTER et al. (2015) |
| Kolitsch (2017) |
Bolivia | |
| www.mineralmundi.com |
Brazil | |
| Varentsov (1996) |
Bulgaria | |
| Chavdarova et al. (2022) |
China | |
| Guicheng Huang et al. (2001) |
| Jingqu Yao (1992) |
| Hunan Metallurgical Geology Research Team 236 (1977) |
| Guilin Institute of Metallurgical Geology et al. (1976) +1 other reference |
| Fan et al. (1999) |
| Shaozhi Zhou (1999) |
Qingrong Zheng et al. (2012) | |
Egypt | |
| El-Habaak et al. (2016) |
| Ibrahim (2000) |
France | |
| Wittern et al. (Cologne) |
| Weil et al. (1958) |
| Bourbon M. (1972) |
Germany | |
| Walenta (1992) |
| Walenta (1992) |
| Schüller (2013) +1 other reference |
| [Hentschel et al. (5) |
| Blass |
| Schüller |
| Marcus Voigt Collection (analysed by Dr. Massanek, Bergakademie Freiberg) +2 other references |
India | |
| Econ Geol (1980) |
Econ Geol (1980) | |
Econ Geol (1980) | |
| Rao et al. (1979) |
| Sarkar (2015) |
| Roy et al. (1968) |
Chemical abstracts +1 other reference | |
| Nayak (1966) |
| MINERALOGICAL MAGAZINE |
S.P. Deshpande (1959) | |
S.P. Deshpande (1959) | |
| Yadav (2022) |
| Nicholson et al. (1997) |
Iran | |
| Lotfi et al. (2017) |
Italy | |
| Di Lisi S. |
| Bedognè et al. (1993) +1 other reference |
AA. VV. | |
Japan | |
| Miyahisa (1957) |
Mexico | |
| Anthony (1997) |
| |
| Ref.: Revista Mexicana de Ciencias Geológicas et al. (2000) |
| Anthony (1997) |
Namibia | |
| Cairncross (2005) |
Bezing et al. (2007) | |
| von Bezing (2007) +1 other reference |
Anthony (1997) | |
Romania | |
| Hârtopanu et al. (1996) |
Russia | |
| V.V. Kalinin data |
| Kassandrov et al. (2009) |
Kassandrov et al. (2009) | |
| Timofeeva et al. (2014) |
| Kasatkin et al. (2021) |
South Africa | |
| Econ Geol (1990) +1 other reference |
| de Villiers (1943) |
Gutzmer (1996) | |
Gutzmer (1996) | |
Cairncross et al. (1995) +1 other reference | |
Cairncross et al. (1995) +1 other reference | |
Cairncross et al. (1995) | |
Cairncross et al. (1995) | |
| Gutzmer (1996) +1 other reference |
Cairncross et al. (1995) | |
Gutzmer (1996) | |
Cairncross et al. (1995) +1 other reference | |
| Cairncross et al. (1995) |
Cairncross et al. (1995) +1 other reference | |
| South African Micromount Society et al. (1989) |
| Wilson et al. (1978) |
Preston (2009) +1 other reference | |
| Von Bezing et al. (1991) |
South African Micromount Society et al. (1989) +1 other reference | |
King (n.d.) | |
South African Micromount Society et al. (1989) +2 other references | |
Gaines (1991) +1 other reference | |
| Gutzmer (1996) |
Spain | |
| Dill et al. (2023) |
Dill et al. (2023) | |
Dill et al. (2023) | |
Dill et al. (2023) | |
Dill et al. (2023) | |
Dill et al. (2023) | |
| Dill et al. (2023) |
Dill et al. (2023) | |
| Anthony (1997) |
Sweden | |
| Mason (1943) |
Roy (1972) +1 other reference | |
Ödman (1950) +1 other reference | |
Ödman (1950) | |
Ödman (1950) +1 other reference | |
Sandström (1997) | |
Sandström (1997) | |
Ödman (1950) | |
| Mason (1942) +1 other reference |
Mason (1942) | |
Tanzania | |
| ... |
Turkey | |
| Öztürk (1997) |
Öztürk (1997) | |
| Gultekin et al. (2016) |
| Öztürk (1997) |
UK | |
| |
USA | |
| Graeme (1981) |
Graeme (1981) +1 other reference | |
| Mineralogical Record 23:487-492 |
| White et al. (1992) +1 other reference |
| Brian Beck Collected |
| Anthony et al. (1995) |
Anthony et al. (1995) | |
Anthony et al. (1995) | |
| Howard (1987) |
| Castor et al. (2004) |
| Min Rec 16:2 p145 |
| NMGS 37th Field Conference |
| Field collected by Ted French |
Gibbs (2013) | |
| Min Rec 16:2 p145 |
Northrop et al. (1996) | |
| GSA Conference (2001) |
| Min Rec 10:5 pp261-278 |
Nassau K. (1968) | |
| Bullock (1981) |
| Mineralogical Record |
| Montgomery (1934) +1 other reference |
Schwab (1998) +1 other reference | |
| Belakovskiy et al. (2006) |
Collected by and in the collection of ... | |
Bullock (1981) | |
J. Holfert et al. (1996) | |
| Stanley C. Hatfield. Bixbyite |
| Bullock (1981) |
Zimbabwe | |
| Anthony (1997) |
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Thomas Range, Juab County, Utah, USA