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Polylithionite

Pictures (25 Images total)

Polylithionit
Views (File:
1521470049
): 1907
Polylithionit
Namibia/Khomas, Region/Windhoek-Land, Kreis/Aris/Aris-Steinbrüche (Aris Quarry; Railway Quarry); Polilithionit-flachtafelig-gelb und Aegirin,langgestreckt,Schwarz
Copyright: derhesse; Contribution: anatase2
Collection: anatase2
Location: Namibia/Khomas, Region/Windhoek-Land, Kreis/Aris/Aris-Steinbrüche (Ariskop Quarry; Railway Quarry)
Mineral: Polylithionite
Image: 1521470049
Rating: 10 (votes: 1)
License: Usage for Mineralienatlas project only
Polylithionit

Namibia/Khomas, Region/Windhoek-Land, Kreis/Aris/Aris-Steinbrüche (Aris Quarry; Railway Quarry); Polilithionit-flachtafelig-gelb und Aegirin,langgestreckt,Schwarz

Collection: anatase2
Copyright: derhesse
Contribution: anatase2 2018-03-19
Locality: Aris-Steinbrüche (Ariskop Quarry; Railway Quarry) / Aris / Windhoek-Land, Kreis / Khomas, Region / Namibia
Polylithionit
Views (File:
1274536165
): 2856
Polylithionit
Größe: 21 mm, Fundort: Mont Saint-Hilaire, Rouville Co., Québec, Kanada
Copyright: Michael Roarke; Contribution: thdun5
Location: Kanada/Québec, Provinz/Montérégie, Region/La Vallée-du-Richelieu RCM/Mont Saint-Hilaire
Mineral: Polylithionite
Image: 1274536165
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
Polylithionit

Größe: 21 mm, Fundort: Mont Saint-Hilaire, Rouville Co., Québec, Kanada

Copyright: Michael Roarke
Contribution: thdun5 2010-05-22
Locality: Mont Saint-Hilaire / La Vallée-du-Richelieu RCM / Montérégie, Region / Québec, Provinz / Kanada
Polylithionit mit eingelagertem Fluorit
Views (File:
1244958936
): 2350
Polylithionit mit eingelagertem Fluorit
Größe: 50x35x10 mm; Fundort: Khaldzan-Buragtag-Massiv, Altai-Hochgebirge, Hovd Aimag (Khovd Aimag), Mongolei
Copyright: Pavel M. Kartashov; Contribution: Philip Blümner
Location: Mongolei/Chowd, Aimag/Altai-Hochgebirge/Khaldzan-Buragtag-Massiv
Mineral: Fluorite, Polylithionite
Image: 1244958936
Rating: 7 (votes: 1)
License: Usage for Mineralienatlas project only
Polylithionit mit eingelagertem Fluorit

Größe: 50x35x10 mm; Fundort: Khaldzan-Buragtag-Massiv, Altai-Hochgebirge, Hovd Aimag (Khovd Aimag), Mongolei

Copyright: Pavel M. Kartashov
Contribution: Philip Blümner 2009-06-14
Locality: Khaldzan-Buragtag-Massiv / Altai-Hochgebirge / Chowd, Aimag / Mongolei
Polylithionit
Views (File:
1130010136
): 1980
Polylithionit
Bildbreite: 3 mm; Fundort: Mont Saint-Hilaire
Copyright: Stephan Wolfsried; Contribution: JHM
Location: Kanada/Québec, Provinz/Montérégie, Region/La Vallée-du-Richelieu RCM/Mont Saint-Hilaire/Poudrette Quarry (Demix Quarry; Uni-Mix Quarry; Desourdy Quarry)
Mineral: Polylithionite
Image: 1130010136
Rating: 6 (votes: 2)
License: Usage for Mineralienatlas project only
Polylithionit

Bildbreite: 3 mm; Fundort: Mont Saint-Hilaire

Copyright: Stephan Wolfsried
Contribution: JHM 2005-10-22
Locality: Poudrette Quarry (Demix Quarry; Uni-Mix Quarry; Desourdy Quarry) / Mont Saint-Hilaire / La Vallée-du-Richelieu RCM / Montérégie, Region / Québec, Provinz / Kanada
Polylithionit
Views (File:
1165571761
): 2067
Polylithionit
Bildbreite: 4 mm; Fundort Mont Saint-Hilaire, Quebéc, Kanada
Copyright: Stephan Wolfsried; Contribution: Hg
Location: Kanada/Québec, Provinz/Montérégie, Region/La Vallée-du-Richelieu RCM/Mont Saint-Hilaire/Poudrette Quarry (Demix Quarry; Uni-Mix Quarry; Desourdy Quarry)
Mineral: Polylithionite
Image: 1165571761
Rating: 5 (votes: 1)
License: Usage for Mineralienatlas project only
Polylithionit

Bildbreite: 4 mm; Fundort Mont Saint-Hilaire, Quebéc, Kanada

Copyright: Stephan Wolfsried
Contribution: Hg 2006-12-08
Locality: Poudrette Quarry (Demix Quarry; Uni-Mix Quarry; Desourdy Quarry) / Mont Saint-Hilaire / La Vallée-du-Richelieu RCM / Montérégie, Region / Québec, Provinz / Kanada

You find additional specimen at the Geolitho Museum

Collectors Summary

Color bläulich, farblos, violett, grünlich, perlweiß
Streak color weiß
Hardness (Mohs) 2.5
Solubility ++ Säuren
Crystal System monoklin, C2/m

Chemism

Chemical formula

KLi2AlSi4O10(F,OH)2

Chemical composition

Aluminium, Lithium, Silicium, Fluor, Kalium, Sauerstoff, Wasserstoff

Unit weight: 389.299961575 u; Number of atoms in the formula: 20.5

Info

Empirical formula:

KLi2AlSi4O10(F0.75(OH)0.25)2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

0.13

0.5

2.44

1.0079470

0.5039735

Lithium

Li

3.57

2

9.76

6.9412000

13.8824000

Oxygen

O

43.15

10.5

51.22

15.9994300

167.9940150

Fluorine

F

7.32

1.5

7.32

18.9984033

28.4976049

Aluminium

Al

6.93

1

4.88

26.9815382

26.9815382

Silicon

Si

28.86

4

19.51

28.0855300

112.3421200

Potassium

K

10.04

1

4.88

39.0983100

39.0983100

Analysis wt%

SiO2 : 59.56, Al2O3 : 12.04, Nb2O5 : 1.52, TiO2 : 0.48, FeO : 0.42, Li2O : 7.26, Na2O : 0.53, K2O : 11.03, Rb2O : 1.14, F : 7.73, H2O : 0.47 (Ref: American Mineralogist 38)

Strunz 9th edition incl. updates

9.EC.20

9: Silikate (Germanate)
E: Schichtsilikate (Phyllosilikate)
C: Schichtsilikate (Phyllosilikate) mit Glimmer Tafeln, zusammengesetzt aus tetrahedralen oder octahedralen Netzen
20:Phlogopit-Gruppe

Lapis Classification

VIII/H.11-010

VIII: SILIKATE
H: Schichtsilikate
11: Glimmerartige Schicht-silikate mit Baugruppen [Si4O10] 4- und verwandte Strukturen; Glimmer-Gruppe; Lithionit/Biotit-Reihe

Classification by Hölzel

9.ED.270

9: SILICATES
E: Phyllosilicates
D: Biotite-Group

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

Mica group  ⇒ True micas

Optical Properties

Color

bläulich, farblos, violett, grünlich, perlweiß

Streak color

weiß

Diaphaneity (Transparency)

transparent

max. Birefringence

0.026

Birefringence chart\! Polylithionite title=Birefringence chart Polylithionite

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

1.529s

RI value β

1.552

RI value γ / ε

1.555

Ri mean

1.545

2V angle

Biaxial (-) 30°

Optical Data Luminescence

Luminescence

fluoreszierend, Kurzwelliges UV=zitronengelb

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

12

Space Group

C2/m

Cell parameters a (Å)

5.186

Cell parameters b (Å)

8.968

Cell parameters c (Å)

10.029

Cell parameters a/b or c/a

0.578

Cell parameters c/b

1.118

Cell parameters α

90°

Cell parameters β

100.40

Cell parameters γ

90°

Z

2

Volume (ų)

458.766

Crystal structure

Frank C. Hawthorne; Elena Sokolova; Atali A. Agakhanov; Leonid A. Pautov; Vladimir Yu. Karpenko: The Crystal Structure of Polylithionite-1M from Darai-Pioz, Tajikistan: the Role of Short-range Order in Driving Symmetry Reduction in 1M Li-rich Mica. The Canadian Mineralogist Vol. 57, Nr. 4 (2019) S. 519-528.

X-Ray Powder Diffraction

4.930(90),
3.589(100),
3.311(100),
3.289(90),
3.065(100),
2.867(70),
2.580(70),
1.974(90)

XRD chart Polylithionite

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

Polytypes

Polylithionite-1M

monoklin

C2

2

Polylithionite-2M2

monoklin

C2/c

2/m

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

2.5

VHN (Hardness Vickers)

53 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.58 - 2.82 / Durchschnittlich = 2.7

2.818 ( ρ calc. Mineralienatlas )

Instability

++ Säuren

Preface

Author (Name, Year)

Lorenzen, 1884

References

Canadian Mineralogist 36 (1998), 905

IMA group assignments

Other languages

Spanish

Polilitionita

German

Polylithionit

French

Polylithionite

English

Polylithionite

Russian

Полилитионит

Traditional Chinese

多矽鋰雲母

Simplified Chinese

多硅锂云母

Alternative Name

Spanish

Polylithionita

CNMNC symbol

Symbol

Pln

Locations with GPS information

IDs

GUSID (Global unique identifier short form) 6LEv50o14Ey4Oos9Mc367A
GUID (Global unique identifier) E72FB1E8-354A-4CE0-B83A-8B3D31CDFAEC
Database ID 3107