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Mounanaite (Mounanait)

Pictures (7 Images total)

Mounanit
Views (File:
1215291589
): 1956, Rating: 7.86
Mounanit
Bildbreite: 2 mm; Fundort: Mounana Mine, Franceville, Haut-Ogooué, Gabon
Copyright: Stephan Wolfsried; Contribution: Hg
Location: Gabun/Haut-Ogooué, Provinz/Mpassa, Departement/Franceville/Mounana Mine
Mineral: Mounanaite
Image: 1215291589
Rating: 7.86 (votes: 7)
License: Usage for Mineralienatlas project only
Mounanit

Bildbreite: 2 mm; Fundort: Mounana Mine, Franceville, Haut-Ogooué, Gabon
Copyright: Stephan Wolfsried
Contribution: Hg 2008-07-05
Locality: Mounana Mine / Franceville / Mpassa, Departement / Haut-Ogooué, Provinz / Gabun
Mounanait
Views (File:
1136656389
): 570
Mounanait
Fundort: Mounana Mine, Franceville, Gabon, Afrika
Copyright: Stephan Wolfsried; Contribution: JHM
Location: Gabun/Haut-Ogooué, Provinz/Mpassa, Departement/Franceville/Mounana Mine
Mineral: Mounanaite
Image: 1136656389
Rating: 7 (votes: 1)
License: Usage for Mineralienatlas project only
Mounanait

Fundort: Mounana Mine, Franceville, Gabon, Afrika
Copyright: Stephan Wolfsried
Contribution: JHM 2006-01-07
Locality: Mounana Mine / Franceville / Mpassa, Departement / Haut-Ogooué, Provinz / Gabun
Mounanait
Views (File:
1136656294
): 728
Mounanait
Fundort: Mounana Mine, Franceville, Gabon, Afrika
Copyright: Stephan Wolfsried; Contribution: JHM
Location: Gabun/Haut-Ogooué, Provinz/Mpassa, Departement/Franceville/Mounana Mine
Mineral: Mounanaite
Image: 1136656294
License: Usage for Mineralienatlas project only
Mounanait

Fundort: Mounana Mine, Franceville, Gabon, Afrika

Copyright: Stephan Wolfsried
Contribution: JHM 2006-01-07
Locality: Mounana Mine / Franceville / Mpassa, Departement / Haut-Ogooué, Provinz / Gabun
Chervetit, Francevillit, Mounanait
Views (File:
1323595344
): 1058
Chervetit, Francevillit, Mounanait
blassgrüne Chervetitkristalle auf gelbem Francevillit und schwarzem Mounanait; Größe: 73x56 mm; Fundort: Mounana Mine, Franceville, Haut-Ogooué, Gabun
Copyright: Rock Currier; Contribution: slugslayer
Collection: British Museum of Natural History
Location: Gabun/Haut-Ogooué, Provinz/Mpassa, Departement/Franceville/Mounana Mine
Mineral: Chervetite, Francevillite, Mounanaite
Image: 1323595344
License: Usage for Mineralienatlas project only
Chervetit, Francevillit, Mounanait

blassgrüne Chervetitkristalle auf gelbem Francevillit und schwarzem Mounanait; Größe: 73x56 mm; Fundort: Mounana Mine, Franceville, Haut-Ogooué, Gabun
Collection: British Museum of Natural History
Copyright: Rock Currier
Contribution: slugslayer 2011-12-11
Locality: Mounana Mine / Franceville / Mpassa, Departement / Haut-Ogooué, Provinz / Gabun
Mounanait
Views (File:
1390815826
): 365
Mounanait
Bildbreite: 1,5 mm; Fundort: Mounana Mine, Franceville, Haut-Ogooué, Gabon
Copyright: Stephan Wolfsried; Contribution: Hg
Location: Gabun/Haut-Ogooué, Provinz/Mpassa, Departement/Franceville/Mounana Mine
Mineral: Mounanaite
Image: 1390815826
License: Usage for Mineralienatlas project only
Mounanait

Bildbreite: 1,5 mm; Fundort: Mounana Mine, Franceville, Haut-Ogooué, Gabon
Copyright: Stephan Wolfsried
Contribution: Hg 2014-01-27
Locality: Mounana Mine / Franceville / Mpassa, Departement / Haut-Ogooué, Provinz / Gabun
Mounanait
Views (File:
1390948659
): 411
Mounanait
Bildbreite: 1,5 mm; Fundort: Mounana Mine, Franceville, Haut-Ogooué, Gabon
Copyright: Stephan Wolfsried; Contribution: Hg
Location: Gabun/Haut-Ogooué, Provinz/Mpassa, Departement/Franceville/Mounana Mine
Mineral: Mounanaite
Image: 1390948659
License: Usage for Mineralienatlas project only
Mounanait

Bildbreite: 1,5 mm; Fundort: Mounana Mine, Franceville, Haut-Ogooué, Gabon
Copyright: Stephan Wolfsried
Contribution: Hg 2014-01-28
Locality: Mounana Mine / Franceville / Mpassa, Departement / Haut-Ogooué, Provinz / Gabun

Collectors Summary

Color bräunlichrot
Solubility +++ Säuren
Crystal System monoklin, C2/m

Chemism

Chemical formula

PbFe3+2(VO4)2(OH)2

Chemical composition

Blei, Eisen, Sauerstoff, Vanadium, Wasserstoff

Unit weight: 582.793614 u; Number of atoms in the formula: 17

Info

Empirical formula:

PbFe2(VO4)2(OH)2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

0.35

2

11.76

1.0079470

2.0158940
Oxygen

O

27.45

10

58.82

15.9994300

159.9943000
Vanadium

V

17.48

2

11.76

50.9415100

101.8830200
Iron

Fe

19.16

2

11.76

55.8452000

111.6904000
Lead

Pb

35.55

1

5.88

207.2100000

207.2100000

Strunz 9th edition incl. updates

8.CG.15

8: Phosphate, Arsenate, Vanadate
C: Phosphate ohne weitere Anionen, mit H2O
G: Mit großen und mittelgroßen Kationen, RO4:H2O = 1:1
15:Tsumcorit-Gruppe

Lapis Classification

VII/C.31-070

VII: PHOSPHATE, ARSENATE UND VANADATE ("Phosphate" des Registers immer einschließlich isotyper Arsenate und Vanadate!)
C: Wasserhaltige Phosphate, ohne fremde Anionen
31: Mittelgroße und große Kationen: Fe-Mn-Zn-Mg und Ca-(NH4) 1+; Tsumcorit/Gartrellit-Gruppe

Classification by Hölzel

8.DK.170

8: PHOSPHATES ARSENATES VANADATES
D: Phosphates (+Anions +Water)
K: very large=2 - very small-medium=2,3
1: (M(2+)(2-x) Me(3+)x -> (H2O)(2-x)(OH)x) with Pb, monoclinic, Tsumcorite-Group

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Tsumcorite group

Optical Properties

Color

bräunlichrot

max. Birefringence

0.080
Birefringence chart\! Mounanaite title=Birefringence chart Mounanaite

Michel-Levy Color Chart viewed according to the maximum birefringence (at 30μm). Mineral color is not taken into account. Click on the image to enlarge or change thickness.

RI value α / ω / n

2.19

RI value β

2.25

RI value γ / ε

2.27

Ri mean

2.237

2V angle

Biaxial (-) 50°

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

12

Space Group

C2/m

Cell parameters a (Å)

9.294

Cell parameters b (Å)

6.166

Cell parameters c (Å)

7.713

Cell parameters a/b or c/a

1.507

Cell parameters c/b

1.251

Cell parameters α

90°

Cell parameters β

115.57

Cell parameters γ

90°

Z

2

Volumne (ų)

398.717

X-Ray Powder Diffraction

4.640(100),
4.562(50),
3.264(90),
3.055(100),
2.817(60),
2.766(70),
2.596(30),
2.320(60)
XRD chart Mounanaite

Calculated from d-spacing and intensity at 0.1541838 nm (Cu)

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Density (g/cm³)

4.85 (gemessen)

4.854 ( ρ calc. Mineralienatlas )

Instability

+++ Säuren

(Co-)Type locality

(Co-)Type locality

Gabun/Haut-Ogooué, Provinz/Mpassa, Departement/Franceville/Mounana Mine

Preface

Name from

Typlokalität

Author (Name, Year)

Cesbron & Fritsche, 1969

References

Bulletin de la Société Française Minéralogie et de Cristallographie 92 (1969), 196

IMA group assignments

Other languages

German

Mounanait

English

Mounanaite

French

Mounanaite

Spanish

Mounanaíta

Russian

Мунанаит

CNMNC (IMA)-Number

IMA 1968-031

CNMNC symbol

Symbol

Mun

Locations with GPS information