Mpororoite
This page is currently not sponsored. Click here to sponsor this page.
About Mpororoite
Formula:
WAlO3(OH)3 · 2(H2O)
Colour:
Greenish yellow
Name:
Named by O. von Knorring, T.G. Sahama, and M. Lehtinen in 1972 for the type locality; the Mpororo tungsten deposit in Uganda.
This page provides mineralogical data about Mpororoite.
Classification of Mpororoite
Approved
First Published:
1972
4/E.02-60
7.GB.35
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
G : Molybdates, Wolframates and Niobates
B : With additional anions and/or H2O
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
G : Molybdates, Wolframates and Niobates
B : With additional anions and/or H2O
49.3.4.1
49 : HYDRATED MOLYBDATES AND TUNGSTATES
3 : Hydrated Molybdates and Tungstates Containing Hydroxyl or Halogen
49 : HYDRATED MOLYBDATES AND TUNGSTATES
3 : Hydrated Molybdates and Tungstates Containing Hydroxyl or Halogen
27.4.5
27 : Sulphites, Chromates, Molybdates and Tungstates
4 : Tungstates
27 : Sulphites, Chromates, Molybdates and Tungstates
4 : Tungstates
Physical Properties of Mpororoite
Colour:
Greenish yellow
Chemical Properties of Mpororoite
Formula:
WAlO3(OH)3 · 2(H2O)
IMA Formula:
Al2O(WO4)2 · 6H2O
Elements listed:
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
8.21 | (100) |
6.18 | (16) |
5.69 | (18) |
4.20 | (17) |
4.09 | (19) |
3.084 | (90b) |
2.357 | (15) |
Type Occurrence of Mpororoite
Geological Setting of Type Material:
Alteration products from a tungsten deposit
Synonyms of Mpororoite
Other Language Names for Mpororoite
German:Mpororoit
Spanish:Mpororoita
Common Associates
Associated Minerals Based on Photo Data:
Anthoinite | 1 photo of Mpororoite associated with Anthoinite on mindat.org. |
Related Minerals - Nickel-Strunz Grouping
7.GB.05 | Lindgrenite | Cu3(MoO4)2(OH)2 | Mon. 2/m : P21/m |
7.GB.10 | Szenicsite | Cu3(MoO4)(OH)4 | Orth. |
7.GB.15 | Cuprotungstite | Cu2(WO4)(OH)2 | Tet. 4 2 2 : P41 21 2 |
7.GB.15 | UM1999-38-WO:CrV | (V, Cr, W, O, H) [V:Cr:W ratio about 2:1:3] | |
7.GB.20 | Phyllotungstite | (H2O,M)x(W,Fe)(O,OH)3 · yH2O (M = Ca, Cs, Pb or K) | Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc |
7.GB.25 | Rankachite | Ca0.5(V4+,V5+)(W6+,Fe3+)2O8(OH) · 2H2O | Mon. 2/m : P21/m |
7.GB.30 | Ferrimolybdite | Fe2(MoO4)3 · nH2O | Orth. mmm (2/m 2/m 2/m) : Pmmn |
7.GB.35 | Anthoinite | AlWO3(OH)3 | Tric. 1 |
7.GB.40 | Obradovicite-KCu | [K2(H2O)17Cu(H2O)6][Mo8As2Fe3+3O34(OH)3] | Orth. mmm (2/m 2/m 2/m) : Pmna |
7.GB.45 | Mendozavilite-NaFe | [Na2(H2O)15Fe3+(H2O)6][Mo8P2Fe3+3O35(OH)2] | Mon. 2/m : B2/m |
7.GB.45 | Paramendozavilite | NaAl4Fe7(PO4)5(PMo12O40)(OH)16 · 56H2O | Mon. |
7.GB.50 | Tancaite-(Ce) | FeCe(MoO4)3·3H2O | Trig. 3 : R3 |
Related Minerals - Hey's Chemical Index of Minerals Grouping
27.4.1 | Cuprotungstite | Cu2(WO4)(OH)2 | Tet. 4 2 2 : P41 21 2 |
27.4.2 | Scheelite | Ca(WO4) | Tet. 4/m : I41/a |
27.4.4 | Anthoinite | AlWO3(OH)3 | Tric. 1 |
27.4.6 | Yttrotungstite-(Y) | YW2O6(OH)3 | |
27.4.7 | Yttrotungstite-(Ce) | (Ce,Nd,Y)W2O6(OH)3 | Mon. 2 : P21 |
27.4.8 | Stolzite | Pb(WO4) | Tet. 4/m : I41/a |
27.4.9 | Raspite | Pb(WO4) | Mon. 2/m : P21/b |
27.4.10 | Russellite | Bi2WO6 | Orth. |
27.4.11 | Pinalite | Pb3WO5Cl2 | Orth. |
27.4.12 | Uranotungstite | (Fe2+,Ba,Pb)(UO2)2(WO4)(OH)4 · 12H2O | Orth. |
27.4.13 | Hübnerite | MnWO4 | Mon. 2/m : P2/b |
27.4.14 | Ferberite | FeWO4 | Mon. 2/m : P2/b |
27.4.15 | Wolframite | (Fe2+)WO4 to (Mn2+)WO4 | Mon. 2/m : P2/b |
27.4.16 | Ferritungstite | Iso. m3m (4/m 3 2/m) : Fd3m | |
27.4.17 | Phyllotungstite | (H2O,M)x(W,Fe)(O,OH)3 · yH2O (M = Ca, Cs, Pb or K) | Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc |
27.4.18 | Qitianlingite | (Fe,Mn)2(Nb,Ta)2WO10 | Orth. |
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 Mpororoite
Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
von Knorring, O., Sahama, T.G., Lehtinen, M. (1972) Mpororoite, a new secondary tungsten mineral from Uganda. Bulletin of the Geological Society of Finland: 44: 107-110.
Fleischer, M. (1973) New mineral names. American Mineralogist: 58: 1111-1115.
Sahama, T.G. (1981) The secondary tungsten minerals, a review. The Mineralogical Record: 12: 81-87.
Matsubara, S., Kato, A., Nagashima, K. (1984) Mpororoite and Anthoinite from the Kara Mine, Tasmania. Mineralogical Magazine: 48: 397-400.
Dunn, P.J., Ferraiolo, J.A., Fleischer, M., Gobel, V., Grice, J.D., Langley, R.H., Shigley, J.E., Vanko, D.A., Zilczer, J.A. (1985) New mineral names. American Mineralogist: 70: 1329-1335.
Shimobayashi, N., Ohnishi, M., Tsuruta, K. (2012) Secondary tungsten minerals in quartz veins in the Ishidera area, Wazuka, Kyoto Prefecture, Japan: anthoinite, mpororoite, and Fe-free hydrokenoelsmoreite. Journal of Mineralogical and Petrological Sciences: 107: 33-38.
Internet Links for Mpororoite
mindat.org URL:
https://www.mindat.org/min-2800.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
External Links:
Mineral Dealers:
Localities for Mpororoite
Locality List




All localities listed without proper references should be considered as questionable.
Australia | |
| Whitehead, 1990; Ralph Bottrill 6/10/2005.; MINERALOGICAL MAGAZINE, SEPTEMBER 1984, VOL. 48, PP. 397-400 |
Canada | |
| J.W. Anthony, R.A. Bideaux, K.W. Bladh, M.C. Nichols: Handbook of Mineralogy, Vol. III (1997); T. S. Ercit and G. W. Robinson (1994) A refinement of the structure of ferritungstite from Kalzas Mountain, Yukon, and observations on the tungsten pyrochlores. Can Mineral 32:567-574 |
Japan | |
| SHIMOBAYASHI, N., OHNISHI, M., and TSURUTA, K. (2012) Secondary tungsten minerals in quartz veins in the Ishidera area, Wazuka, Kyoto Prefecture, Japan: anthoinite, mpororoite, and Fe-free hydrokenoelsmoreite. Journal of Mineralogical and Petrological Sciences, 107, No. 1 (February), 33-38. |
Uganda (TL) | |
| O. von Knorring, T.G. Sahama, M. Lehtinen: Bull. Geol. Soc. Finland 44:107-110 (1972); Amer. Mineral. 58:1112 (1973); MINERALOGICAL MAGAZINE, SEPTEMBER 1984, VOL. 48, PP. 397-400 |
UK | |
| Golley, P., and Williams, R. (1995): Cornish Mineral Reference Manual. Endsleigh Publications (Truro), 104 pp.; Weiss, S., Green, D.H., Hooper, J.J., and Elton, N. (2007): Lapis 32(11), 13-25 |
Kara #1 Pit, Kara Mines, Hampshire district, Burnie City, Tasmania, Australia