Paramendozavilite
A valid IMA mineral species
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About Paramendozavilite
Formula:
[KAl4(H2O)30][Mo12P6Fe3+6O60(OH)13]
Redefined by Kampf et al. (2012) based on neotypes; formerly given as NaAl4Fe7(PO4)5(PMo12O40)(OH)16.56H2O
Colour:
Pale yellow
Lustre:
Vitreous
Hardness:
1
Specific Gravity:
3.35
Crystal System:
Monoclinic
Name:
Named by Williams (1986) for the close relation to mendozavilite (Greek para = near).
This page provides mineralogical data about Paramendozavilite.
Unique Identifiers
Mindat ID:
3099
Long-form identifier:
mindat:1:1:3099:7
GUID
(UUID V4):
(UUID V4):
33c47bd1-4779-45fb-80ae-9f7fc7c08e66
IMA Classification of Paramendozavilite
Approved
IMA Formula:
NaAl4Fe7(PO4)5(PMo12O40)(OH)16 · 56H2O
First published:
1986
Classification of Paramendozavilite
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
49.4.6.1
49 : HYDRATED MOLYBDATES AND TUNGSTATES
4 : Compound Molybdates and Tungstates
49 : HYDRATED MOLYBDATES AND TUNGSTATES
4 : Compound Molybdates and Tungstates
22.5.7
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 |
|---|---|---|
| Pmdz | 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 Paramendozavilite
Vitreous
Transparency:
Translucent
Colour:
Pale yellow
Streak:
Very pale yellow
Hardness:
1 on Mohs scale
Cleavage:
Perfect
one perfect cleavage
one perfect cleavage
Density:
3.35 g/cm3 (Measured) 2.858 g/cm3 (Calculated)
Optical Data of Paramendozavilite
Type:
Biaxial (-)
RI values:
nα = 1.686 nβ = 1.710 nγ = 1.720
2V:
Measured: 60° , Calculated: 64.9°
Max Birefringence:
δ = 0.034
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
Pleochroism:
Visible
Comments:
Pale yellow, Z > Y > X
Chemistry of Paramendozavilite
Mindat Formula:
[KAl4(H2O)30][Mo12P6Fe3+6O60(OH)13]
Redefined by Kampf et al. (2012) based on neotypes; formerly given as NaAl4Fe7(PO4)5(PMo12O40)(OH)16.56H2O
Redefined by Kampf et al. (2012) based on neotypes; formerly given as NaAl4Fe7(PO4)5(PMo12O40)(OH)16.56H2O
Crystallography of Paramendozavilite
Crystal System:
Monoclinic
Cell Parameters:
a = 10.963(2) Å, b = 25.881(3) Å, c = 15.434(2) Å
β = 110.73(1)°
β = 110.73(1)°
Ratio:
a:b:c = 0.424 : 1 : 0.596
Unit Cell V:
4095.8 ų
Z:
2
Twinning:
Crystals are mostly twinned. Polysynthetic, observed optically parallel to cleavage
Comment:
Point Group: n.d. ; Space Group: n.d.
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 14.36 Å | (10) |
| 9.48 Å | (10) |
| 7.38 Å | (7) |
| 10.18 Å | (6) |
| 7.98 Å | (5) |
| 6.56 Å | (5) |
| 12.90 Å | (4) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47a : [Near-surface hydration of prior minerals] | |
| 47c : [Carbonates, phosphates, borates, nitrates] |
Type Occurrence of Paramendozavilite
General Appearance of Type Material:
coatings
Place of Conservation of Type Material:
The Natural History Museum, London, England, 1984,476.
Reference:
Williams, S.A. (1986) Mendozavilite and paramendozavilite, two new minerals from Cumobabi, Sonora. Boletín de Mineralogía: 2: 13-19.
Synonyms of Paramendozavilite
Other Language Names for Paramendozavilite
German:Paramendozavilit
Spanish:Paramendozavilita
Common Associates
Associated Minerals Based on Photo Data:
| 8 photos of Paramendozavilite associated with Mendozavilite-NaFe | [Na2(H2O)15Fe3+(H2O)6][Mo8P2Fe3+3O35(OH)2] |
| 2 photos of Paramendozavilite associated with Muscovite | KAl2(AlSi3O10)(OH)2 |
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 | Mendozavilite-NaFe | [Na2(H2O)15Fe3+(H2O)6][Mo8P2Fe3+3O35(OH)2] |
| 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 |
Other Information
Notes:
Easily soluble in dilute acids
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 Paramendozavilite
mindat.org URL:
https://www.mindat.org/min-3099.html
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References for Paramendozavilite
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
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 Paramendozavilite
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.
Mexico | |
| Williams (1986) |
| Williams (1986) +1 other reference |
USA | |
|
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San Judas Mine, Cumobabi, El Verde Mining District, Cumpas Municipality, Sonora, Mexico