Majindeite (original) (raw)
A valid IMA mineral species
Specific Gravity:
5.54 (Calculated)
Name:
Named in honor of Ma Jinde (1939-1991) a mineralogist at the China University of Geosciences, Wuhan, China.
Mg analogue of kamiokite. The associated phases include Ni-Fe and Ru-Os-Ir alloys.
Majindeite likely results from subsolidus oxidation of Mo-rich precursor phase(s), possibly directly from kamiokite. Oxygen and magnesium (and Ca) were derived externally via cracks etc. within spinel. Majindeite formation is associated with an oxidation event synchronic with or taking place after the formation of grossular-bearing veins cutting melilite.
Unique IdentifiersHide
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Long-form identifier:
mindat:1:1:43599:2
IMA Classification of MajindeiteHide
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Type description reference:
Classification of MajindeiteHide
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4.CB.40
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
7.6.3.3
7 : MULTIPLE OXIDES
6 : (AB)5X8
Mineral SymbolsHide
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As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Mjd | 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 MajindeiteHide
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Density:
5.54 g/cm3 (Calculated)
Chemistry of MajindeiteHide
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Crystallography of MajindeiteHide
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Class (H-M):
6_m_ m - Dihexagonal Pyramidal
Cell Parameters:
a = 5.778 Å, b = 5.778 Å, c = 9.904 Å
Ratio:
a:b:c = 1 : 1 : 1.714
Comment:
nolanite-type structure
X-Ray Powder DiffractionHide
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Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 4.952 Å | (100) |
| 3.520 Å | (57) |
| 2.495 Å | (35) |
| 2.426 Å | (67) |
| 2.233 Å | (23) |
| 1.994 Å | (50) |
| 1.641 Å | (24) |
| 1.553 Å | (38) |
Comments:
From Type Description.
Geological EnvironmentHide
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Type Occurrence of MajindeiteHide
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General Appearance of Type Material:
submicrometer-sized crystals
Place of Conservation of Type Material:
Smithsonian Institution’s National Museum of Natural History, Washington DC, USA, registration number USNM 7615
Geological Setting of Type Material:
Ca-Al inclusion (CAI) within the Allende meteorite
Associated Minerals at Type Locality:
Synonyms of MajindeiteHide
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Relationship of Majindeite to other SpeciesHide
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Other Members of Kamiokite Group:
Related Minerals - Strunz-mindat GroupingHide
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| 4.CB. | Magnesiohögbomite-6N12S | Mg5Al11TiO23(OH) | Trig. 3_m_ _(_32/m ) : R_3_m |
|---|---|---|---|
| 4.CB. | Oboniobite | Mg4Nb2O9 | Trig. 3_m_ _(_32/m ) : _P_3_c_1 |
| 4.CB. | Ferrohögbomite-2N2S | [(Fe2+,Mg,Zn,Al)3(Al,Ti,Fe3+)8O15(OH)]2 | Hex. 6_m_ m : P_63_m c |
| 4.CB. | Zhenruite | (MoO3)2 · H2O | Mon. 2/m : _P_21/m |
| 4.CB. | Fuyuanite | Mg7Nb6O18(OH)8 | Trig. 3 : _P_3 |
| 4.CB. | Virgilluethite | MoO3 · H2O | Mon. 2/m : _P_21/b |
| 4.CB. | Pengite | (Pb8Sb3+3)Σ11Sb5+9O35 | Trig. 3_m_ _(_32/m ) : R_3_m |
| 4.CB.05 | Brizziite | NaSb5+O3 | Trig. 3 : _R_3 |
| 4.CB.05 | Tistarite | Ti3+2O3 | Trig. 3_m_ _(_32/m ) : R_3_c |
| 4.CB.05 | Hematite | Fe2O3 | Trig. 3_m_ _(_32/m ) : R_3_c |
| 4.CB.05 | Ecandrewsite | ZnTiO3 | Trig. 3 : _R_3 |
| 4.CB.05 | Melanostibite | Mn2+2Fe3+Sb5+O6 | Trig. 3 : _R_3 |
| 4.CB.05 | UM1998-11-O-AuHSb | Au+2Sb3+O2(OH) | |
| 4.CB.05 | Karelianite | V3+2O3 | Trig. 3_m_ _(_32/m ) : R_3_c |
| 4.CB.05 | Corundum | Al2O3 | Trig. 3_m_ _(_32/m ) : R_3_c |
| 4.CB.05 | Eskolaite | Cr2O3 | Trig. 3_m_ _(_32/m ) : R_3_c |
| 4.CB.05 | Geikielite | MgTiO3 | Trig. 3 : _R_3 |
| 4.CB.05 | Akimotoite | MgSiO3 | Trig. 3 : _R_3 |
| 4.CB.05 | Unnamed (Fe-Cr Oxide) | FeCrO3 | Trig. 3 : _R_3 |
| 4.CB.05 | Auroantimonate | AuSbO3 | |
| 4.CB.05 | Hemleyite | (Fe2+0.48Mg0.37Ca0.04Na0.04Mn2+0.03Al0.03Cr3+0.01)sum=1.00Si1.00O3 | Trig. 3 : _R_3 |
| 4.CB.05 | Ilmenite | Fe2+TiO3 | Trig. 3 : _R_3 |
| 4.CB.05 | Pyrophanite | Mn2+TiO3 | Trig. 3 : _R_3 |
| 4.CB.10 | Bixbyite-(Fe) | (Fe,Mn)2O3 | Iso. |
| 4.CB.10 | Bixbyite-(Mn) | Mn3+2O3 | Iso. m_3(2/m_3) : I _a_3 |
| 4.CB.10 | Avicennite | Tl2O3 | Iso. m_3(2/m_3) : I _a_3 |
| 4.CB.15 | Armalcolite | (Mg,Fe2+)Ti2O5 | Orth. m m m _(_2/_m_2/_m_2/m ) |
| 4.CB.15 | Ferropseudobrookite | Fe2+Ti2O5 | Orth. m m m _(_2/_m_2/_m_2/m ) : C m c m |
| 4.CB.15 | Griffinite | Al2TiO5 | Orth. m m m _(_2/_m_2/_m_2/m ) : C m c m |
| 4.CB.15 | Pseudobrookite Group | ||
| 4.CB.15 | Sassite | Ti3+2Ti4+O5 | Orth. m m m _(_2/_m_2/_m_2/m ) : C m c m |
| 4.CB.15 | Pseudobrookite | Fe2TiO5 | Orth. m m m _(_2/_m_2/_m_2/m ) |
| 4.CB.20 | Zincovelesite-6N6S | Zn3(Fe3+,Mn3+,Al,Ti)8O15(OH) | Trig. 3_m_ _(_32/m ) : _P_3_m_1 |
| 4.CB.20 | Magnesiohögbomite-2N4S | (Mg8.43Fe2+1.57)sum=10Al22Ti4+2O46(OH)2 | Hex. 6_m_ m : P_63_m c |
| 4.CB.20 | Magnesiobeltrandoite-2N3S | (Mg6Al2)(Al18Fe3+2)O38(OH)2 | Trig. 3_m_ : _P_3_m_1 |
| 4.CB.20 | Zincohögbomite-2N6S | [(Zn,Mg)7(Al,Fe3+,Ti)16O31(OH)]2 | Hex. 6_m_ m : P_63_m c |
| 4.CB.20 | Magnesiohögbomite-6N6S | [(Mg,Fe2+)3(Al,Ti,Fe3+)8O15(OH)]6 | Trig. 3_m_ _(_32/m ) : R_3_m |
| 4.CB.20 | Magnesiohögbomite-2N3S | [(Mg,Fe2+,Zn)4(Al,Ti,Fe3+)10O19(OH)]2 | Trig. 3_m_ _(_32/m ) : P_31_m |
| 4.CB.20 | Magnesiohögbomite-2N2S | [(Mg,Fe2+)3[Al7(Ti,Fe3+)]O15(OH)]2 | Hex. 6_m_ m : P_63_m c |
| 4.CB.20 | Ferrohögbomite-6N12S | [(Fe2+,Mg,Zn)5(Al,Ti,Fe3+)12O23(OH)]6 | Trig. 3_m_ _(_32/m ) : R_3_m |
| 4.CB.20 | Zincohögbomite-2N2S | [(Zn,Al,Fe2+)3(Al,Fe3+,Ti)8O15(OH)]2 | Hex. 6_m_ m : P_63_m c |
| 4.CB.25 | Kleberite | FeTi6O11(OH)5 | Mon. 2/m : _P_21/b |
| 4.CB.25 | Pseudorutile | Fe2Ti3O9 | Hex. 622 : _P_6322 |
| 4.CB.30 | Oxyvanite | V3+2V4+O5 | Mon. 2/m : _B_2/b |
| 4.CB.30 | Berdesinskiite | V3+2TiO5 | Mon. |
| 4.CB.30 | Kaitianite | Ti3+2Ti4+O5 | Mon. 2/m : _B_2/b |
| 4.CB.35 | Machiite | Al2Ti3O9 | Mon. 2/m : _B_2/b |
| 4.CB.35 | Vestaite | (Ti4+Fe2+)Ti4+3O9 | Mon. 2/m : _B_2/b |
| 4.CB.35 | Olkhonskite | (Cr,V)2Ti3O9 | Mon. |
| 4.CB.35 | Schreyerite | V3+2Ti4+3O9 | Mon. 2/m : _B_2/b |
| 4.CB.40 | Zincorinmanite-(Zn) | Zn2Sb2(Fe3+4Zn2)O14(OH)2 | Hex. 6_m_ m : P_63_m c |
| 4.CB.40 | Kamiokite | Fe2Mo3O8 | Hex. 6_m_ m : P_63_m c |
| 4.CB.40 | Nolanite | V3+8Fe3+2O14(OH)2 | Hex. 6_m_ m : P_63_m c |
| 4.CB.40 | Iseite | Mn2Mo3O8 | Hex. 6_m_ m : P_63_m c |
| 4.CB.40 | Rinmanite | Zn2Sb2Mg2Fe4O14(OH)2 | Hex. 6 : _P_63 |
| 4.CB.45 | Stibioclaudetite | AsSbO3 | Mon. 2/m : _P_21/m |
| 4.CB.45 | Claudetite | As2O3 | Mon. 2/m |
| 4.CB.50 | Senarmontite | Sb2O3 | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.CB.50 | Arsenolite | As2O3 | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.CB.55 | Valentinite | Sb2O3 | Orth. m m m _(_2/_m_2/_m_2/m ) : P c c n |
| 4.CB.60 | Bismite | Bi2O3 | Mon. 2/m : _P_21/b |
| 4.CB.65 | Sphaerobismoite | Bi2O3 | Tet. |
| 4.CB.70 | Sillénite | Bi12SiO20 | Iso. 23 : _I_23 |
| 4.CB.75 | Kyzylkumite | V3+Ti2O5(OH) | Mon. 2/m : _P_21/b |
| 4.CB.80 | Tietaiyangite | Fe3+4Fe2+TiO9 | Hex. |
| 4.CB.85 | Liuite | FeTiO3 | Orth. m m m _(_2/_m_2/_m_2/m ) : P n m a |
| 4.CB.90 | Luogufengite | Fe2O3 | Orth. m _m_2 : P n _a_21 |
| 4.CB.95 | Wangdaodeite | FeTiO3 | Trig. 3_m_ : R_3_c |
Other InformationHide
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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 MajindeiteHide
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References for MajindeiteHide
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Localities for MajindeiteHide
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This 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.
Locality ListHide
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- 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.
| Mexico (TL) | |
|---|---|
| Chihuahua Pueblito de Allende ⓘ Allende meteorite (TL) | Williams et al. (2013) |