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Yoderite from
Mautia Hill, Kongwa, Kongwa District, Dodoma Region, Tanzania


08811760017866377294700.jpg
Yoderite

Mautia Hill, Kongwa, Kongwa District, Dodoma Region, Tanzania
06673560017868763791037.jpg
Yoderite

Mautia Hill, Kongwa, Kongwa District, Dodoma Region, Tanzania
07013700017271927727397.jpg
Yoderite

Mautia Hill, Kongwa, Kongwa District, Dodoma Region, Tanzania
02368380017272008919256.jpg
Yoderite, etc.

Mautia Hill, Kongwa, Kongwa District, Dodoma Region, Tanzania
00132430017362937745263.jpg
Yoderite

Mautia Hill, Kongwa, Kongwa District, Dodoma Region, Tanzania
02166700017362937744888.jpg
Yoderite

Mautia Hill, Kongwa, Kongwa District, Dodoma Region, Tanzania
04301190017362937742811.jpg
Yoderite

Mautia Hill, Kongwa, Kongwa District, Dodoma Region, Tanzania
06014320017362937748601.jpg
Yoderite, etc.

Mautia Hill, Kongwa, Kongwa District, Dodoma Region, Tanzania
09873130017271927693784.jpg
Yoderite

Mautia Hill, Kongwa, Kongwa District, Dodoma Region, Tanzania
02068610017271927761137.jpg
Yoderite

Mautia Hill, Kongwa, Kongwa District, Dodoma Region, Tanzania
07013700017271927727397.jpg
Yoderite

Mautia Hill, Kongwa, Kongwa District, Dodoma Region, Tanzania
02368380017272008919256.jpg
Yoderite, etc.

Mautia Hill, Kongwa, Kongwa District, Dodoma Region, Tanzania
Locality type:Hill
Classification
Species:Yoderite
Formula:Mg(Al,Fe3+)3(SiO4)2O(OH)
Chemical Analyses:
Oxide wt%:
12
P2O50.29 %0.37 %
SiO236.56 %36.33 %
TiO20.06 %0.06 %
Al2O343.52 %43.50 %
Ga2O30.01 %0.01 %
V2O30.01 %0.01 %
Cr2O30.01 %0.06 %
Fe2O3*4.95 %4.50 %
FeO*0.44 %0.65 %
MnO0.52 %0.00 %
MgO11.90 %12.06 %
SrO0.01 %0.01 %
K2O0.01 %0.00 %
F0.01 %0.00 %
H2O (by stoichiometry)2.74 %2.73 %
-O=F0.00 %0.00 %
NiO0.00 %0.01 %
Na2O0.00 %0.01 %
Total:101.04 %100.31 %
Empirical formulas:
1(Mg1.93Mn2+0.05Fe2+0.02)(Al5.57Fe3+0.39Fe2+0.03Ti0.01)O2[Si0.99P0.01O4]4(OH)2.00
2(Mg1.96Fe2+0.04)(Al5.59Fe3+0.37Fe2+0.02Ti0.01Cr0.01)O2[Si0.99P0.01O4]4(OH)2.00
Sample references:
1FKM-69 pt. 28
Frank K. Mazdab collection; sample FKM-69; https://www.rockptx.com/fkm-51-to-fkm-75/#FKM-69
2FKM-307 pt. 54
Frank K. Mazdab collection; sample FKM-307; https://www.rockptx.com/fkm-301-to-fkm-325/#FKM-307
Confirmation
Validity:Valid - Type Locality
Associated Minerals Based on Photo Data:
Talc8
Kyanite6
Quartz5
Data
Mineral Data:Click here to view Yoderite data
Locality Data:Click here to view Mautia Hill, Kongwa, Kongwa District, Dodoma Region, Tanzania
Photo GalleryView Gallery (18 photos)
Data Identifiers
Mindat Occurrence Record ID:58247
Long-form Identifier:1:3:58247:0
GUID (UUID V4):0
References
Fleischer, M.; Chao, E.C.T. (1960) New mineral names. American Mineralogist, 45 (5-6). 753-756
McKie, Duncan (1963) Order-disorder in sapphirine. Mineralogical Magazine and Journal of the Mineralogical Society, 33 (263) 635-645 doi:10.1180/minmag.1963.033.263.02
Fockenberg, T., Schreyer, W. (1991) Yoderite, a mineral with essential ferric iron: Its lack of occurrence in the system MgO-Al2O3-SiO2-H2O. American Mineralogist, 76 (5-6) 1052-1060
 
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