Mianningite
A valid IMA mineral species
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About Mianningite
Formula:
(◻,Pb,Ce,Na)(U4+,Mn,U6+)Fe3+2 (Ti,Fe3+)18O38
Colour:
Black
Lustre:
Sub-Metallic
Hardness:
6
Specific Gravity:
4.62
Crystal System:
Trigonal
Member of:
Name:
Named after the county of its type locality, Mianning county, Sichuan province, China.
Type Locality:
Mianningite can be considered as the analogue of mapiquiroite with the M0 site preferentially vacant.
Initially ◻-dominant mineral of davidite group without special name was described from Kazakhstan (Ryzhov e.a., 1983). Then a poorly characterized mineral of the same composition from Romania named Romanite was published without approval (Dragila, 1990).
Initially ◻-dominant mineral of davidite group without special name was described from Kazakhstan (Ryzhov e.a., 1983). Then a poorly characterized mineral of the same composition from Romania named Romanite was published without approval (Dragila, 1990).
Unique Identifiers
Mindat ID:
46512
Long-form identifier:
mindat:1:1:46512:4
GUID
(UUID V4):
(UUID V4):
4eb5c44a-5383-4f38-a813-6719ea9a54e8
IMA Classification of Mianningite
Classification of Mianningite
4.CC.20
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
C : Metal: Oxygen = 2: 3,3: 5, and similar
C : With large and 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
C : With large and 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 |
|---|---|---|
| Min | 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 Mianningite
Sub-Metallic
Transparency:
Opaque
Colour:
Black
Streak:
Black
Hardness:
6 on Mohs scale
Comment:
Its average micro-indentation hardness is 83.8 kg/mm2 (load 0.2 kg)
Tenacity:
Brittle
Fracture:
Conchoidal
Density:
4.62(8) g/cm3 (Measured) 4.77 g/cm3 (Calculated)
Optical Data of Mianningite
Type:
Isotropic
Bireflectance:
Exhibits none bireflectance
Colour in reflected light:
Grayish white
Internal Reflections:
No internal reflections
Pleochroism:
Non-pleochroic
Chemistry of Mianningite
Mindat Formula:
(◻,Pb,Ce,Na)(U4+,Mn,U6+)Fe3+2 (Ti,Fe3+)18O38
Crystallography of Mianningite
Crystal System:
Trigonal
Class (H-M):
3 - Rhombohedral
Space Group:
R3
Cell Parameters:
a = 10.3462(5) Å, c = 20.837(2) Å
Ratio:
a:c = 1 : 2.014
Unit Cell V:
1931.65 ų
Z:
3
Morphology:
Subhedral to euhedral tabular crystals, up to 1–2 mm in size
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.065 Å | (75) |
| 2.883 Å | (55) |
| 2.627 Å | (100) |
| 2.476 Å | (55) |
| 2.254 Å | (70) |
| 2.144 Å | (100) |
| 1.704 Å | (55) |
| 1.545 Å | (60) |
Comments:
From Type Description.
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 4b: Highly evolved igneous rocks | >3.0 |
| 35 : Ultra-alkali and agpaitic igneous rocks |
Type Occurrence of Mianningite
General Appearance of Type Material:
Opaque subhedral to euhedral tabular crystals, up to 1–2 mm in size
Place of Conservation of Type Material:
Type material is deposited in the collections of the Geological Museum of China, Beijing, China, registration number M12189
Geological Setting of Type Material:
In fractures of lamprophyre veins and in the contact between lamprophyre and a later quartz–alkali feldspar syenite dyke with REE mineralization.
Associated Minerals at Type Locality:
Synonyms of Mianningite
Relationship of Mianningite to other Species
Member of:
Other Members of this group:
| Almeidaite | PbZn2(Mn,Y)(Ti,Fe3+)18O37(OH,O) | Trig. 3 : R3 |
| Botuobinskite | SrFe2+Mg2(Cr3+6Ti4+12)[O36(OH)2] | Trig. 3 : R3 |
| Cleusonite | (Pb,Sr)(U4+,U6+)(Fe2+,Zn)2(Ti,Fe2+,Fe3+)18(O,OH)38 | Trig. 3 : R3 |
| Crichtonite | Sr(Mn,Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH)38 | Trig. 3 : R3 |
| Davidite-(Ce) | Ce(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38 | Trig. 3 : R3 |
| Davidite-(La) | La(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38 | Trig. 3 : R3 |
| Davidite-(Y) | (La,Ce,Na,Ca,Pb)(Y,Fe2+,◻)(Fe2+,Mn2+)2(Ti,Fe3+,Nb,Zr)18O38 (hypothetical) | Trig. |
| Dessauite-(Y) | (Sr,Pb)(Y,U)(Ti,Fe3+)20O38 | Trig. 3 : R3 |
| Gramaccioliite-(Y) | (Pb,Sr)(Y,Mn)Fe3+2(Ti,Fe3+)18O38 | Trig. 3 : R3 |
| Haitaite-(La) | LaU4+Fe3+2(Ti13Fe2+4Fe3+)O38 | Trig. 3 : R3 |
| Landauite | NaMnZn2(Ti,Fe)6Ti12O38 | Trig. 3 : R3 |
| Lindsleyite | (Ba,Sr)(Zr,Ca)(Fe,Mg)2(Ti,Cr,Fe)18O38 | Trig. |
| Loveringite | (Ca,Ce,La)(Zr,Fe)(Mg,Fe)2(Ti,Fe,Cr,Al)18O38 | Trig. 3 : R3 |
| Mapiquiroite | (Sr,Pb)(U,Y)Fe2(Ti,Fe3+,Cr3+)18O38 | Trig. 3 : R3 |
| Mathiasite | (Mg,Cr,Fe,Ca,K)2(Ti,Zr,Cr,Fe)5O12 | Trig. 3 : R3 |
| Mirnyite | SrZr4+Mg2(Cr3+6Ti4+12)O38 | Trig. 3 : R3 |
| Paseroite | PbMn2+(Mn2+,Fe3+)2(V5+,Ti,◻)18O38 | Trig. 3 : R3 |
| Saranovskite | SrCaFe2+2(Cr4Ti2)Ti12O38 | Trig. 3 : R3 |
| Senaite | Pb(Mn,Y,U)(Fe,Zn)2(Ti,Fe,Cr,V)18(O,OH)38 | Trig. 3 : R3 |
| UM1987-03-O:FePbTiU | ~(U,Pb)(Ti,Fe3+,Fe2+,Mn)21O38 | Trig. 3 : R3 |
| UM2003-08-O:AlCaFeREEScTiV | (Ca,Ce)Sc(Ti,V,Fe,Al)20O38 | |
| UM2006-05-O:CaFeKMnNaREESrTiZr | (Sr,Na,K,REE)(Ca,Zr,Mn)(Ti,Fe)18Fe2O38 | |
| UM2006-06-O:CaFeKMnNaREESrTiZr | (Sr,Na,K,REE)(Zr,Ca,Mn)(Ti,Fe)18Fe2O38 | |
| UM2006-07-O:CaFeKMnNaREESrTiZr | (Na,Sr,K,REE)(Ca,Zr,Mn)(Ti,Fe)18Fe2O38 | |
| UM2006-08-O:CaFeKMnNaREESrTiZr | (Na,Sr,K,REE)(Zr,Ca,Mn)(Ti,Fe)18Fe2O38 | |
| UM2006-09-O:CaFeMnREESrTiZr | (Ce,Sr,REE)(Ca,Mn,Zr)Fe2(Ti,Fe)18O38 | |
| Unnamed (HBU UK-4) | NaFe2+Zn2(Ti,Fe3+,Nb)6Ti12O38 | Trig. 3 : R3 |
Common Associates
Associated Minerals Based on Photo Data:
| 3 photos of Mianningite associated with Cleusonite | (Pb,Sr)(U4+,U6+)(Fe2+,Zn)2(Ti,Fe2+,Fe3+)18(O,OH)38 |
| 3 photos of Mianningite associated with Tyuyamunite | Ca(UO2)2(VO4)2 · 5-8H2O |
| 2 photos of Mianningite associated with Titanite | CaTi(SiO4)O |
| 2 photos of Mianningite associated with Rutile | TiO2 |
| 1 photo of Mianningite associated with Uraninite | UO2 |
Related Minerals - Strunz-mindat Grouping
| 4.CC. | Xuite | Ca3Fe3+2[(AlO3(OH)]3 |
| 4.CC. | Allendeite | Sc4Zr3O12 |
| 4.CC. | Bitikleite | Ca3(Sb5+Sn4+)[AlO4]3 |
| 4.CC. | Yttriaite-(Y) | Y2O3 |
| 4.CC. | Chlorkyuygenite | Ca12Al14O32[(H2O)4Cl2] |
| 4.CC. | Anzaite-(Ce) | Ce3+ 4Fe2+Ti6O18 (OH)2 |
| 4.CC. | Heamanite-(Ce) | (K0.5Ce0.5)TiO3 |
| 4.CC. | Priscillagrewite-(Y) | (Ca2Y)Zr2(AlO4)3 |
| 4.CC. | Saranovskite | SrCaFe2+2(Cr4Ti2)Ti12O38 |
| 4.CC. | Botuobinskite | SrFe2+Mg2(Cr3+6Ti4+12)[O36(OH)2] |
| 4.CC. | Mirnyite | SrZr4+Mg2(Cr3+6Ti4+12)O38 |
| 4.CC. | Haitaite-(La) | LaU4+Fe3+2(Ti13Fe2+4Fe3+)O38 |
| 4.CC. | Shagamite | KFe11O17 |
| 4.CC.05 | Chrombismite | Bi3+16Cr6+O27 |
| 4.CC.10 | Freudenbergite | Na2(Ti,Fe)8O16 |
| 4.CC.10 | Fluormayenite | Ca12Al14O32F2 |
| 4.CC.10 | Fluorkyuygenite | Ca12Al14O32[(H2O)4F2] |
| 4.CC.15 | Grossite | CaAl4O7 |
| 4.CC.17 | Goldschmidtite | KNbO3 |
| 4.CC.20 | Chlormayenite | Ca12Al14O32[◻4Cl2] |
| 4.CC.20 | Unnamed (HBU UK-4) | NaFe2+Zn2(Ti,Fe3+,Nb)6Ti12O38 |
| 4.CC.20 | Paseroite | PbMn2+(Mn2+,Fe3+)2(V5+,Ti,◻)18O38 |
| 4.CC.20 | UM1987-03-O:FePbTiU | ~(U,Pb)(Ti,Fe3+,Fe2+,Mn)21O38 |
| 4.CC.22 | Kahlenbergite | KAl11O17 |
| 4.CC.22 | Gorerite | CaAlFe3+11O19 |
| 4.CC.25 | Yafsoanite | Ca3Te6+2(ZnO4)3 |
| 4.CC.25 | Nixonite | Na2Ti6O13 |
| 4.CC.30 | Latrappite | Ca2NbFe3+O6 |
| 4.CC.30 | Lueshite | NaNbO3 |
| 4.CC.30 | Natroniobite | NaNbO3 |
| 4.CC.30 | Perovskite | CaTiO3 |
| 4.CC.30 | Barioperovskite | BaTiO3 |
| 4.CC.30 | Lakargiite | Ca(Zr,Sn,Ti)O3 |
| 4.CC.30 | Megawite | CaSnO3 |
| 4.CC.32 | Usturite | Ca3(Sb5+Zr)[Fe3+O4]3 |
| 4.CC.32 | Elbrusite | Ca3(U6+0.5Zr1.5)[Fe3+O4]3 |
| 4.CC.32 | Dzhuluite | Ca3(Sb5+Sn4+)[Fe3+O4]3 |
| 4.CC.32 | Monteneveite | Ca3Sb5+2(Fe3+2Fe2+)O12 |
| 4.CC.35 | Loparite-(Ce) | (Na,REE)2Ti2O6 |
| 4.CC.35 | Macedonite | PbTiO3 |
| 4.CC.35 | Tausonite | SrTiO3 |
| 4.CC.35 | Isolueshite | (Na,La)NbO3 |
| 4.CC.35 | Panguite | (Ti,Al,Sc,Mg,Zr,Ca)1.8O3 |
| 4.CC.37 | Pauloabibite | NaNbO3 |
| 4.CC.40 | Crichtonite | Sr(Mn,Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH)38 |
| 4.CC.40 | Davidite-(Ce) | Ce(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38 |
| 4.CC.40 | Davidite-(La) | La(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38 |
| 4.CC.40 | Davidite-(Y) | (La,Ce,Na,Ca,Pb)(Y,Fe2+,◻)(Fe2+,Mn2+)2(Ti,Fe3+,Nb,Zr)18O38 (hypothetical) |
| 4.CC.40 | Landauite | NaMnZn2(Ti,Fe)6Ti12O38 |
| 4.CC.40 | Lindsleyite | (Ba,Sr)(Zr,Ca)(Fe,Mg)2(Ti,Cr,Fe)18O38 |
| 4.CC.40 | Loveringite | (Ca,Ce,La)(Zr,Fe)(Mg,Fe)2(Ti,Fe,Cr,Al)18O38 |
| 4.CC.40 | Mathiasite | (Mg,Cr,Fe,Ca,K)2(Ti,Zr,Cr,Fe)5O12 |
| 4.CC.40 | Senaite | Pb(Mn,Y,U)(Fe,Zn)2(Ti,Fe,Cr,V)18(O,OH)38 |
| 4.CC.40 | Uhligite | Ca3(Ti,Al,Zr)9O20 ? |
| 4.CC.40 | Dessauite-(Y) | (Sr,Pb)(Y,U)(Ti,Fe3+)20O38 |
| 4.CC.40 | Cleusonite | (Pb,Sr)(U4+,U6+)(Fe2+,Zn)2(Ti,Fe2+,Fe3+)18(O,OH)38 |
| 4.CC.40 | Gramaccioliite-(Y) | (Pb,Sr)(Y,Mn)Fe3+2(Ti,Fe3+)18O38 |
| 4.CC.45 | Diaoyudaoite | NaAl11O17 |
| 4.CC.45 | Hawthorneite | BaMgTi3Cr4Fe2+2Fe3+2O19 |
| 4.CC.45 | Hibonite | CaAl12O19 |
| 4.CC.45 | Lindqvistite | Pb2Mn2+Fe16O27 |
| 4.CC.45 | Magnetoplumbite | (Pb,Mn)(Fe,Mn)12O19 |
| 4.CC.45 | Plumboferrite | Pb2(Fe3+,Mn2+,Mg)11O19 |
| 4.CC.45 | Yimengite | K(Cr,Ti,Fe,Mg)12O19 |
| 4.CC.45 | Haggertyite | BaFe2+4Fe3+2Ti5MgO19 |
| 4.CC.45 | Nežilovite | PbZn2Mn4+2Fe3+8O19 |
| 4.CC.45 | Batiferrite | BaTi2Fe3+8Fe2+2O19 |
| 4.CC.45 | Chihuahuaite | FeAl12O19 |
| 4.CC.45 | Barioferrite | BaFe3+12O19 |
| 4.CC.45 | Kangite | (Sc,Ti,Al,Zr,Mg,Ca,◻)2O3 |
| 4.CC.45 | Mizraite-(Ce) | Ce(Al11Mg)O19 |
| 4.CC.50 | Jeppeite | (K,Ba)2(Ti,Fe)6O13 |
| 4.CC.55 | Zenzénite | Pb3Fe3+4Mn4+3O15 |
| 4.CC.60 | Mengxianminite (of Huang et al.) | (Ca,Na)3(Fe,Mn)2Mg2(Sn,Zn)5Al8O29 |
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 Mianningite
mindat.org URL:
https://www.mindat.org/min-46512.html
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References for Mianningite
Localities for Mianningite
symbol to view information about a locality.
The 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).
All localities listed without proper references should be considered as questionable.
China (TL) | |
| Williams et al. (2015) +1 other reference |
Mongolia | |
| Pavel M. Kartashov analytical data of ... |
Russia | |
| L.B. Larichev |
| L.I. Larichev | |
| L.B. Larichev +1 other reference |
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