Paramendozavilite Mineral Data

Paramendozavilite Mineral Data +

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General Paramendozavilite Information

Chemical Formula:

NaAl4Fe+++7(PO4)5(P+++++Mo++++++12O40)(OH)16·56(H2O)

Composition:

Molecular Weight = 4,099.90 gm

Sodium 0.56 % Na 0.76 % Na₂O

Aluminum 2.63 % Al 4.97 % Al₂O₃

Iron 9.54 % Fe 13.63 % Fe₂O₃

Molybdenum 28.08 % Mo 42.13 % MoO₃

Phosphorus 4.53 % P 10.39 % P₂O₅

Hydrogen 3.15 % H 28.12 % H₂O

Oxygen 51.51 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

NaAl₄Fe³⁺₇(PO₄)₅PMo₁₂O₄₀(OH)₁₆·56(H₂O)

Environment:

Biotite rich molybdenum-bearing pegmatite.

IMA Status:

Approved IMA 1986

Locality:

Cumobabi, SW of Cumpas, Sonora, Mexico. Link to MinDat.org Location Data.

Name Origin:

Named for the similarity to mendozavilite.

Paramendozavilite Image

Images:

Paramendozavilite

Comments: Bright yellow paramendozavilite coatings on matrix.
Location: Cumobabi, Sonora, Mexico. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Paramendozavilite Crystallography

Crystal System:

MonoclinicSpace Group: Unk.

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 9.48(1), 14.36(1), 7.38(0.7),

Physical Properties of Paramendozavilite

Cleavage:

[???] Perfect

Color:

Yellow, Light yellow.

Density:

3.35

Hardness:

1 - Talc

Luster:

Vitreous (Glassy)

Streak:

yellow white

Optical Properties of Paramendozavilite

Gladstone-Dale:

CI meas= 0.218 (Poor) - where the CI = (1-KPDmeas/KC)
KPDmeas= 0.2105,KC= 0.2691

Optical Data:

Biaxial (-), a=1.686, b=1.71, g=1.72, bire=0.0340, 2V(Calc)=64, 2V(Meas)=55.

Calculated Properties of Paramendozavilite

Electron Density:

r_electron=3.31 gm/cc
note: r_{Paramendozavilite}=3.35 gm/cc.

Fermion Index

Fermion Index = 0.07379
Boson Index = 0.92621

Photoelectric:

PE_{Paramendozavilite}= 46.75 barns/electron
U=PE_{Paramendozavilite} x r_electron= 154.54 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Paramendozavilite is Not Radioactive

Paramendozavilite Classification

Dana Class:

49.4.6.1 (49)Basic and Hydrated Molybdates and Tungstates

(49.4)(Compound Anions)

(49.4.6)Dana Group

49.4.6.1 Paramendozavilite NaAl4Fe7(PO4)5(PMo12O40)(OH)16·56(H2O) Unk. Mono

Strunz Class:

VII/D.57-20 VII - Phosphates, Arsenates and Vanadates

VII/D - Water-bearing phosphates with unfamiliar anions, cations of very big and medium size: Al, Mg and Ca, Na, K

VII/D.57 - Mendozavilite - Paramendozavilite series

VII/D.57-10 Mendozavilite (Na,Mg)Ca2[Mo8P2Fe3O36(OH)]·n(H2O),n~9 Unk. Mono

VII/D.57-20 Paramendozavilite NaAl4Fe7(PO4)5(PMo12O40)(OH)16·56(H2O) Unk. Mono

Other Paramendozavilite Information

References:

NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Paramendozavilite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 -École des Mines de Paris

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Print or Cut-and-Paste your Paramendozavilite Specimen Label here :

Paramendozavilite

NaAl4Fe+++7(PO4)5(P+++++Mo++++++12O40)(OH)16·56(H2O)
Dana No: 49.4.6.1 Strunz No: VII/D.57-20
Locality:

Notes: