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Phyllotungstite (Phyllotungstit)

Pictures (4 Images total)

Phyllotungstit
Views (File:
1179601589
): 2243
Phyllotungstit
Bildbreite: 2 mm; Fundort: Grube Clara, Wolfach, Schwarzwald
Copyright: Stephan Wolfsried; Contribution: Hg
Location: Deutschland/Baden-Württemberg/Freiburg, Bezirk/Ortenaukreis/Oberwolfach/Grube Clara
Mineral: Phyllotungstite
Image: 1179601589
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
Phyllotungstit

Bildbreite: 2 mm; Fundort: Grube Clara, Wolfach, Schwarzwald
Copyright: Stephan Wolfsried
Contribution: Hg 2007-05-19
Locality: Grube Clara / Oberwolfach / Ortenaukreis / Freiburg, Bezirk / Baden-Württemberg / Deutschland
Phyllotungstit
Views (File:
1167327269
): 1526
Phyllotungstit
Bildbreite: 0,6 mm; Fundort: Grube Clara, Wolfach, Schwarzwald
Copyright: Stephan Wolfsried; Contribution: Hg
Location: Deutschland/Baden-Württemberg/Freiburg, Bezirk/Ortenaukreis/Oberwolfach/Grube Clara
Mineral: Phyllotungstite
Image: 1167327269
License: Usage for Mineralienatlas project only
Phyllotungstit

Bildbreite: 0,6 mm; Fundort: Grube Clara, Wolfach, Schwarzwald
Copyright: Stephan Wolfsried
Contribution: Hg 2006-12-28
Locality: Grube Clara / Oberwolfach / Ortenaukreis / Freiburg, Bezirk / Baden-Württemberg / Deutschland
Phyllotungstite
Views (File:
1515673135
): 490
Phyllotungstite
Picture width 0.8 mm. Collection and photograph Christian Rewitzer; Locality: Alcantarilla mine, Belalcázar, Córdoba, Andalusia, Spain; Fov: 0.8 mm; 11. 2016
Copyright: Christian Rewitzer; Contribution: Stefan
Location: Spanien/Andalusien (Andalucía)/Córdoba, Provinz/Los Pedroches, Comarca/Belalcázar, Municipio/Mina Nuestra Señora de las Alcantarillas
Mineral: Phyllotungstite
Image: 1515673135
License: Usage for Mineralienatlas project only
Phyllotungstite

Picture width 0.8 mm. Collection and photograph Christian Rewitzer; Locality: Alcantarilla mine, Belalcázar, Córdoba, Andalusia, Spain; Fov: 0.8 mm; 11. 2016
Copyright: Christian Rewitzer
Contribution: Stefan 2018-01-11
Locality: Mina Nuestra Señora de las Alcantarillas / Belalcázar, Municipio / Los Pedroches, Comarca / Córdoba, Provinz / Andalusien (Andalucía) / Spanien
Phyllotungstite
Views (File:
1515673547
): 651
Phyllotungstite
Sony Alpha 7R ii, bellows, Mitutoyo M Plan 20x, aperture, Raynox DCR-250 retro, Stack-Master linear actor, stack shot control. Brown blades of Phyllotungstite. Collection and photo Stephan Wolfsried; Locality: Alcantarilla mine, Belalcázar, Córdoba, Andalusia, Spain; Fov: 1.2 mm; 5/2017
Copyright: Stephan Wolfsried; Contribution: Stefan
Location: Spanien/Andalusien (Andalucía)/Córdoba, Provinz/Los Pedroches, Comarca/Belalcázar, Municipio/Mina Nuestra Señora de las Alcantarillas
Mineral: Phyllotungstite
Image: 1515673547
License: Usage for Mineralienatlas project only
Phyllotungstite

Sony Alpha 7R ii, bellows, Mitutoyo M Plan 20x, aperture, Raynox DCR-250 retro, Stack-Master linear actor, stack shot control. Brown blades of Phyllotungstite. Collection and photo Stephan Wolfsrie...
Copyright: Stephan Wolfsried
Contribution: Stefan 2018-01-11
Locality: Mina Nuestra Señora de las Alcantarillas / Belalcázar, Municipio / Los Pedroches, Comarca / Córdoba, Provinz / Andalusien (Andalucía) / Spanien

You find additional specimen at the Geolitho Museum

Collectors Summary

Color gelb
Streak color gelblichweiß
Hardness (Mohs) 2
Crystal System orthorhombisch,

Chemism

Chemical formula

CaFe33+H(WO4)6·10H2O

Chemical composition

Calcium, Eisen, Sauerstoff, Wasserstoff, Wolfram

Unit weight: 1875.807507 u; Number of atoms in the formula: 65

Info

Empirical formula:

CaFe3H(WO4)6·10H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

1.13

21

32.31

1.0079470

21.1668870
Oxygen

O

29.00

34

52.31

15.9994300

543.9806200
Calcium

Ca

2.14

1

1.54

40.0784000

40.0784000
Iron

Fe

8.93

3

4.62

55.8452000

167.5356000
Tungsten

W

58.80

6

9.23

183.8410000

1,103.0460000

Strunz 9th edition incl. updates

7.GB.20

7: Sulfate (Selenate, Tellurate, Chromate, Molybdate, Wolframate)
G: Molybdate und Wolframate
B: Mit zusätzlichen [Anionen] und/oder H2O
20:Phyllotungstit-Gruppe

Lapis Classification

IV/C.19-020

IV: OXIDE
C: Oxide mit Verhältnis Metall : Sauerstoff = 2:3 (M2O3 und verwandte Verbindungen)
19: Pyrochlor-Gruppe; ELSMOREIT-Untergruppe [W ± Fe]

Classification by Hölzel

7.GC.300

7: SULFATES CHROMATES MOLYBDATES WOLFRAMATES
G: Molybdates and Wolframates
C: Molybdates and Wolframates (-Anions +Water)

Dana 8th edition

49.02.04.01

49: Basic and Hydrated Molybdates and Tungstates
02: Basic and Hydrated Molybdates and Tungstates (Hydrated)

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

gelb

Streak color

gelblichweiß

max. Birefringence

0.085
Birefringence chart\! Phyllotungstite title=Birefringence chart Phyllotungstite

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

2.10

RI value β

2.183

RI value γ / ε

2.185

Ri mean

2.156

2V angle

Biaxial (-) 18°<

Crystallography

Crystal System

orthorhombisch

Cell parameters a (Å)

7.29

Cell parameters b (Å)

12.59

Cell parameters c (Å)

19.55

Cell parameters a/b or c/a

0.579

Cell parameters c/b

1.553

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

3

Volume (ų)

1794.321

X-Ray Powder Diffraction

6.33(70),
6.01(60),
4.91(60),
3.25(80),
3.13(100),
2.92(70),
2.45(70),
1.822(80)
XRD chart Phyllotungstite

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

Crystals 3D

Open larger view

Physical Properties

Hardness (Mohs)

2

VHN (Hardness Vickers)

32 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

5.26 (berechnet)

5.208 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

Deutschland/Baden-Württemberg/Freiburg, Bezirk/Ortenaukreis/Oberwolfach/Grube Clara

Preface

Author (Name, Year)

Walenta, 1984

References

Neues Jahrbuch für Mineralogie, Monatshefte (1984), 529

Other languages

Spanish

Filotungstita

German

Phyllotungstit

French

Phyllotungstite

English

Phyllotungstite

CNMNC (IMA)-Number

IMA 1984-018

CNMNC symbol

Symbol

Ptgs

Locations with GPS information

IDs

GUSID (Global unique identifier short form) 3BHRESrvJkmeLNEmzSIPxA
GUID (Global unique identifier) 11D111DC-EF2A-4926-9E2C-D126CD220FC4
Database ID 3048