Mendozavilite-NaFe
A valid IMA mineral species
This page is currently not sponsored. Click here to sponsor this page.
About Mendozavilite-NaFe
Formula:
[Na2(H2O)15Fe3+(H2O)6][Mo8P2Fe3+3O35(OH)2]
Colour:
Empire yellow; orange; brown
Lustre:
Vitreous
Hardness:
1½
Specific Gravity:
3.85
Crystal System:
Monoclinic
Member of:
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. The name was originally simply mendozavilite; the suffix was added by the IMA in 2010.
Formerly called mendozavilite; redefined in 2010 (IMA 10-E).
Unique Identifiers
Mindat ID:
2642
Long-form identifier:
mindat:1:1:2642:6
GUID
(UUID V4):
(UUID V4):
659db715-671e-40a3-8353-4dd2697840a1
IMA Classification of Mendozavilite-NaFe
Approved
IMA status notes:
Renamed by the IMA
First published:
1986
Approval history:
Renamed from mendozavilite to mendozavilite-NaFe in OMA Proposal 10E (CNMNC Newsletter 7)
Classification of Mendozavilite-NaFe
7.GB.45
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
49.4.5.1
49 : HYDRATED MOLYBDATES AND TUNGSTATES
4 : Compound Molybdates and Tungstates
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
22 : Phosphates, Arsenates or Vanadates with other Anions
5 : Phosphates, arsenates or vanadates with chromate, molybdate, niobate or tantalate
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 |
|---|---|---|
| Mdz-NaFe | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Pronunciation of Mendozavilite-NaFe
Pronunciation:
| Play | Recorded by | Country |
|---|---|---|
| Jolyon Ralph | United Kingdom |
Physical Properties of Mendozavilite-NaFe
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-NaFe
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.
and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
r > v, extreme
Pleochroism:
Weak
Comments:
In pale yellows.
Comments:
Absorption: Z > Y > X.
Chemistry of Mendozavilite-NaFe
Mindat Formula:
[Na2(H2O)15Fe3+(H2O)6][Mo8P2Fe3+3O35(OH)2]
Crystallography of Mendozavilite-NaFe
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)°
β = 129.8(3)°
Ratio:
a:b:c = 1.706 : 1 : 1.376
Unit Cell V:
2421 ų
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 9.46 Å | (80) |
| 8.77 Å | (100) |
| 3.676 Å | (50) |
| 3.118 Å | (40) |
| 1.820 Å | (50) |
| 1.552 Å | (40) |
Comments:
San Judas mine, Sonora, Mexico. The data are from the type description.
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47c : [Carbonates, phosphates, borates, nitrates] |
Type Occurrence of Mendozavilite-NaFe
General Appearance of Type Material:
Crystals are small (~20 µm) but well-formed.
Place of Conservation of Type Material:
Natural History Museum, London, United Kingdom, number BM 1984,475 (cotype).
Geological Setting of Type Material:
Oxide zone of a pegmatite molybdenum deposit.
Associated Minerals at Type Locality:
Reference:
Williams, S.A. (1986) Mendozavilite and paramendozavilite, two new minerals from Cumobabi, Sonora. Boletín de Mineralogía: 2: 13-19 .
Synonyms of Mendozavilite-NaFe
Other Language Names for Mendozavilite-NaFe
German:Mendozavilit
Spanish:Mendozavilita
Relationship of Mendozavilite-NaFe to other Species
Member of:
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 Associates
Associated Minerals Based on Photo Data:
| 13 photos of Mendozavilite-NaFe associated with Molybdenite | MoS2 |
| 8 photos of Mendozavilite-NaFe associated with Paramendozavilite | [KAl4(H2O)30][Mo12P6Fe3+6O60(OH)13] |
| 8 photos of Mendozavilite-NaFe associated with Schorl | NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) |
| 6 photos of Mendozavilite-NaFe associated with Quartz | SiO2 |
Related Minerals - Strunz-mindat Grouping
| 7.GB. | Wangpuite | K3(PO4)(Mo12O36) |
| 7.GB. | Natromolybdite | Na2MoO4 · 2H2O |
| 7.GB. | Ootannite | Th4+2W6+4O16 · 5H2O |
| 7.GB.05 | Lindgrenite | Cu3(MoO4)2(OH)2 |
| 7.GB.10 | Szenicsite | Cu3(MoO4)(OH)4 |
| 7.GB.15 | Cuprotungstite | Cu2(WO4)(OH)2 |
| 7.GB.15 | UM1999-38-WO:CrV | (V, Cr, W, O, H) [V:Cr:W ratio about 2:1:3] |
| 7.GB.15 | Huenite | Cu4(MoO4)3(OH)2 |
| 7.GB.20 | Phyllotungstite | (H2O,M)x(W,Fe)(O,OH)3 · yH2O (M = Ca, Cs, Pb or K) |
| 7.GB.25 | Rankachite | Ca0.5(V4+,V5+)(W6+,Fe3+)2O8(OH) · 2H2O |
| 7.GB.30 | Ferrimolybdite | Fe2(MoO4)3 · nH2O |
| 7.GB.35 | Anthoinite | AlWO3(OH)3 |
| 7.GB.35 | Mpororoite | WAlO3(OH)3 · 2(H2O) |
| 7.GB.40 | Obradovicite-KCu | [K2(H2O)17Cu(H2O)6][Mo8As2Fe3+3O34(OH)3] |
| 7.GB.45 | Paramendozavilite | [KAl4(H2O)30][Mo12P6Fe3+6O60(OH)13] |
| 7.GB.45 | Obradovicite-NaCu | Na2(H2O)17Cu(H2O)6][Mo8As2Fe3+3O34(OH)3] |
| 7.GB.45 | Obradovicite-NaNa | [Na2(H2O)16Na(H2O)6][Mo8As2Fe3+3O33(OH)4] |
| 7.GB.50 | Tancaite-(Ce) | FeCe(MoO4)3 · 3H2O |
| 7.GB.50 | Mendozavilite-NaCu | [Na2(H2O)15Cu(H2O)6][Mo8P2Fe3+3O34(OH)3] |
| 7.GB.50 | Mendozavilite-KCa | [K2(H2O)15Ca(H2O)6][Mo8P2Fe3+3O34(OH)3] |
| 7.GB.60 | Peterandresenite | Mn4Nb6O19 · 14H2O |
| 7.GB.60 | Melcherite | Ba2Na2Mg[Nb6O19] · 6H2O |
| 7.GB.60 | Hansesmarkite | Ca2Mn2Nb6O19 · 20H2O |
| 7.GB.65 | Ichnusaite | Th(MoO4)2 · 3H2O |
| 7.GB.70 | Markascherite | Cu3(MoO4)(OH)4 |
| 7.GB.75 | Nuragheite | Th(MoO4)2 · H2O |
| 7.GB.80 | Ophirite | Ca2Mg4[Zn2Mn3+2(H2O)2(Fe3+W9O34)2] · 46H2O |
Fluorescence of Mendozavilite-NaFe
None
Other Information
Notes:
Readily soluble in dilute acids (HCl, HNO3, H2SO4) at room-temperature.
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 Mendozavilite-NaFe
mindat.org URL:
https://www.mindat.org/min-2642.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
External Links:
Mineral Dealers:
References for Mendozavilite-NaFe
Reference List:
Hawthorne, Frank C., Burke, Ernst A. J., Ercit, T. Scott, Grew, Edward S., Grice, Joel D., Jambor, John L., Puziewicz, Jacek, Roberts, Andrew C., Vanko, David A. (1988) New Mineral Names. American Mineralogist, 73 (1-2) 189-199
Williams, P. A., Hatert, F., Pasero, M., Mills, S. J. (2011) New minerals and nomenclature modifications approved in 2010, CNMNC Newsletter No 7. Mineralogical Magazine, 75 (1) 27-31 doi:10.1180/minmag.2011.075.1.27
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 (5) 1175-1207 doi:10.1180/minmag.2012.076.5.09
Localities for Mendozavilite-NaFe
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.
Australia | |
| W.D. Birch (2002) +1 other reference |
Chile | |
| Kampf et al. (2012) |
Mexico (TL) | |
| Bol. de Mineral. (1986) +2 other references |
USA | |
| Wilson (1989) |
| Mineralogical Society of America - ... |
Quick NavTopAbout Mendozavilite-NaFeUnique IdentifiersIMA Classification Classification Mineral SymbolsPronunciation Physical Properties Optical Data Chemistry Crystallography X-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsOther LanguagesRelationshipsCommon AssociatesStrunz-MindatFluorescence Other InformationInternet Links References Localities Locality List
San Judas Mine, Cumobabi, El Verde Mining District, Cumpas Municipality, Sonora, Mexico