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Mendozavilite-NaFe

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About Mendozavilite-NaFeHide

Formula:
[Na2(H2O)15Fe3+(H2O)6][Mo8P2Fe3+3O35(OH)2]
Colour:
Empire yellow; orange; brown
Lustre:
Vitreous
Hardness:
Specific Gravity:
3.85
Crystal System:
Monoclinic
Name:
First described from the San Judas Mine, Cumobabi, Moctezuma, Sonora, Mexico by Williams (1986). Named in honor of Heriberto Mendoza Avila (1924– ), Phelps Dodge exploration geologist, who found the first specimen.
Formerly called mendozavilite; redefined in 2010 (IMA 10-E).


Classification of Mendozavilite-NaFeHide

Approved
Notes:
Renamed by the IMA
Approval History:
Renamed by IMA: 2010
7.GB.45

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
G : Molybdates, Wolframates and Niobates
B : With additional anions and/or H2O
49.4.5.1

49 : HYDRATED MOLYBDATES AND TUNGSTATES
4 : Compound Molybdates and Tungstates
22.5.6

22 : Phosphates, Arsenates or Vanadates with other Anions
5 : Phosphates, arsenates or vanadates with chromate, molybdate, niobate or tantalate

Pronounciation of Mendozavilite-NaFeHide

Pronounciation:
PlayRecorded byCountry
Jolyon & Katya RalphUnited Kingdom

Physical Properties of Mendozavilite-NaFeHide

Vitreous
Transparency:
Transparent
Colour:
Empire yellow; orange; brown
Streak:
Bright yellow
Hardness:
1½ on Mohs scale
Density:
3.85 g/cm3 (Measured)    2.948 g/cm3 (Calculated)

Optical Data of Mendozavilite-NaFeHide

Type:
Biaxial (+)
RI values:
nα = 1.762 nβ = 1.763 nγ = 1.766
2V:
Measured: 5° to 15°, Calculated: 62°
Max Birefringence:
δ = 0.004
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
r > v, extreme
Pleochroism:
Visible
Comments:
Pale yellow, Z > Y > X

Chemical Properties of Mendozavilite-NaFeHide

Formula:
[Na2(H2O)15Fe3+(H2O)6][Mo8P2Fe3+3O35(OH)2]

Crystallography of Mendozavilite-NaFeHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Setting:
C2/m
Cell Parameters:
a = 18.82(12) Å, b = 11.03(14) Å, c = 15.18(12) Å
β = 129.8(3)°
Ratio:
a:b:c = 1.706 : 1 : 1.376
Unit Cell V:
2421 ų

Type Occurrence of Mendozavilite-NaFeHide

Synonyms of Mendozavilite-NaFeHide

Other Language Names for Mendozavilite-NaFeHide

Relationship of Mendozavilite-NaFe to other SpeciesHide

Other Members of this group:
Melkovite[Ca2(H2O)15Ca(H2O)6][Mo8P2Fe3+3O36(OH)]Mon. 2/m : B2/m
Mendozavilite-KCa[K2(H2O)15Ca(H2O)6][Mo8P2Fe3+3O34(OH)3] Mon. 2/m : B2/m
Mendozavilite-NaCu[Na2(H2O)15Cu(H2O)6][Mo8P2Fe3+3O34(OH)3] Mon. 2/m : B2/m

Common AssociatesHide

Associated Minerals Based on Photo Data:
Quartz2 photos of Mendozavilite-NaFe associated with Quartz on mindat.org.
Molybdenite2 photos of Mendozavilite-NaFe associated with Molybdenite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

7.GB.05LindgreniteCu3(MoO4)2(OH)2Mon. 2/m : P21/m
7.GB.10SzenicsiteCu3(MoO4)(OH)4Orth.
7.GB.15CuprotungstiteCu2(WO4)(OH)2Tet. 4 2 2 : P41 21 2
7.GB.15UM1999-38-WO:CrV(V, Cr, W, O, H) [V:Cr:W ratio about 2:1:3]
7.GB.20Phyllotungstite(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.25RankachiteCa0.5(V4+,V5+)(W6+,Fe3+)2O8(OH) · 2H2OMon. 2/m : P21/m
7.GB.30FerrimolybditeFe2(MoO4)3 · nH2OOrth. mmm (2/m 2/m 2/m) : Pmmn
7.GB.35AnthoiniteAlWO3(OH)3Tric. 1
7.GB.35MpororoiteWAlO3(OH)3 · 2(H2O)
7.GB.40Obradovicite-KCu[K2(H2O)17Cu(H2O)6][Mo8As2Fe3+3O34(OH)3]Orth. mmm (2/m 2/m 2/m) : Pmna
7.GB.45ParamendozaviliteNaAl4Fe7(PO4)5(PMo12O40)(OH)16 · 56H2OMon.
7.GB.50Tancaite-(Ce)FeCe(MoO4)3·3H2O Trig. 3 : R3

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

22.5.1VauquelinitePb2Cu(CrO4)(PO4)(OH)Mon. 2/m
22.5.2EmbreyitePb5(CrO4)2(PO4)2 · H2OMon.
22.5.3CassedanneitePb5(CrO4)2(VO4)2 · H2OMon.
22.5.4FornacitePb2Cu(CrO4)(AsO4)(OH)Mon. 2/m : P21/b
22.5.5MolybdofornacitePb2Cu(MoO4,CrO4)(AsO4,PO4)(OH)Mon.
22.5.7ParamendozaviliteNaAl4Fe7(PO4)5(PMo12O40)(OH)16 · 56H2OMon.
22.5.8Betpakdalite-CaCa[Ca2(H2O)17Ca(H2O)6][Mo6+8As5+2Fe3+3O36(OH)]Mon. 2/m : B2/m
22.5.9Betpakdalite-NaCa[Na2(H2O)17Ca(H2O)6][Mo6+8As5+2Fe3+3O34(OH)3]Mon. 2/m : B2/m
22.5.10Obradovicite-KCu[K2(H2O)17Cu(H2O)6][Mo8As2Fe3+3O34(OH)3]Orth. mmm (2/m 2/m 2/m) : Pmna
22.5.11Melkovite[Ca2(H2O)15Ca(H2O)6][Mo8P2Fe3+3O36(OH)]Mon. 2/m : B2/m
22.5.12RankachiteCa0.5(V4+,V5+)(W6+,Fe3+)2O8(OH) · 2H2OMon. 2/m : P21/m
22.5.13OlmsteaditeKFe2+2(Nb5+,Ta5+)(PO4)2O2 · 2H2OOrth.
22.5.14JohnwalkiteK(Mn2+,Fe2+,Fe3+)2(Nb5+,Ta5+)(PO4)2O2 · 2(H2O,OH)Orth.

Fluorescence of Mendozavilite-NaFeHide

Other InformationHide

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 Mendozavilite-NaFeHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Williams, S. A. (1986) Mendozavilite and paramendozavilite, two new minerals from Cumobabi, Sonora. Boletín de Mineralogía: 2:, 13-19
American Mineralogist (1988): 73: 193 (abstract)
Australian Journal of Mineralogy (2002): 8: 11-15.
Kampf, A.R., Mills, S.J., Rumsey, M.S., Dini, M., Birch, W.D., Spratt, J., Pluth, J.J., Steele, I.M., Jenkins, R.A., Pinch, W.W. (2012): The heteropolymolybdate family: structural relations, nomenclature scheme and new species. Mineralogical Magazine: 76: 1175-1207

Internet Links for Mendozavilite-NaFeHide

Localities for Mendozavilite-NaFeHide

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

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Australia
 
  • Western Australia
    • Ravensthorpe Shire
W.D. Birch, A. Pring & K. Wallwork (2002) Mendozavilite from the Fitzgerald River District, Western Australia, Australian Journal of Mineralogy, 8, 11-15.; Kampf, A.R., Mills, S.J., Rumsey, M.S., Dini, M., Birch, W.D., Spratt, J., Pluth, J.J., Steele, I.M., Jenkins, R.A., Pinch, W.W. (2012): The heteropolymolybdate family: structural relations, nomenclature scheme and new species. Mineralogical Magazine, 76, 1175-1207
Chile
 
  • Antofagasta Region
    • Antofagasta Province
Kampf, A.R., Mills, S.J., Rumsey, M.S., Dini, M., Birch, W.D., Spratt, J., Pluth, J.J., Steele, I.M., Jenkins, R.A., Pinch, W.W. (2012): The heteropolymolybdate family: structural relations, nomenclature scheme and new species. Mineralogical Magazine: 76: 1175-1207
Mexico (TL)
 
  • Sonora
    • Mun. de Moctezuma
      • La Verde District
        • Cumobabi
Bol. de Mineral.(1986) 2, 13-19; Panczner (1987): 136, 269, 292.; Kampf, A.R., Mills, S.J., Rumsey, M.S., Dini, M., Birch, W.D., Spratt, J., Pluth, J.J., Steele, I.M., Jenkins, R.A., Pinch, W.W. (2012): The heteropolymolybdate family: structural relations, nomenclature scheme and new species. Mineralogical Magazine, 76, 1175-1207.
USA
 
  • Utah
    • Tooele Co.
      • Deep Creek Mts
Min Rec 20:1 pp69-75
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