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Bikitaite

Pictures (13 Images total)

Bikitait
Views (File:
1311514100
): 1820, Rating: 9
Bikitait
Größe: 0,74 mm; Fundort: Foote Mine, Kings Mountain District, Cleveland Co., North Carolina, USA
Copyright: Matteo Chinellato; Contribution: Hg
Collection: Domenico Preite
Location: USA/North Carolina/Cleveland Co./Kings Mountain District/Foote Mine (Foote Lithium Co. Mine)
Mineral: Bikitaite
Image: 1311514100
Rating: 9 (votes: 4)
License: Usage for Mineralienatlas project only
Bikitait

Größe: 0,74 mm; Fundort: Foote Mine, Kings Mountain District, Cleveland Co., North Carolina, USA
Collection: Domenico Preite
Copyright: Matteo Chinellato
Contribution: Hg 2011-07-24
Locality: Foote Mine (Foote Lithium Co. Mine) / Kings Mountain District / Cleveland Co. / North Carolina / USA
Bikitait
Views (File:
1282583791
): 867
Bikitait
Kristallgröße: 5 mm, Fundort: Foote Mine, Kings Mountain District, Cleveland Co., North Carolina, USA
Copyright: Jason B. Smith; Contribution: thdun5
Location: USA/North Carolina/Cleveland Co./Kings Mountain District/Foote Mine (Foote Lithium Co. Mine)
Mineral: Bikitaite
Image: 1282583791
Rating: 8 (votes: 2)
License: Usage for Mineralienatlas project only
Bikitait

Kristallgröße: 5 mm, Fundort: Foote Mine, Kings Mountain District, Cleveland Co., North Carolina, USA
Copyright: Jason B. Smith
Contribution: thdun5 2010-08-23
Locality: Foote Mine (Foote Lithium Co. Mine) / Kings Mountain District / Cleveland Co. / North Carolina / USA
Bikitait
Views (File:
1311514199
): 853
Bikitait
Größe: 1,1 mm; Fundort: Foote Mine, Kings Mountain District, Cleveland Co., North Carolina, USA
Copyright: Matteo Chinellato; Contribution: Hg
Collection: Domenico Preite
Location: USA/North Carolina/Cleveland Co./Kings Mountain District/Foote Mine (Foote Lithium Co. Mine)
Mineral: Bikitaite
Image: 1311514199
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
Bikitait

Größe: 1,1 mm; Fundort: Foote Mine, Kings Mountain District, Cleveland Co., North Carolina, USA
Collection: Domenico Preite
Copyright: Matteo Chinellato
Contribution: Hg 2011-07-24
Locality: Foote Mine (Foote Lithium Co. Mine) / Kings Mountain District / Cleveland Co. / North Carolina / USA
Bikitait mit Fluorapatit
Views (File:
1410353288
): 761
Bikitait mit Fluorapatit
Bildbreite: 5 mm, Fundort: Foote Lithium Co. Mine, Kings Mountain District, Cleveland Co., North Carolina, USA
Copyright: Stephan Wolfsried; Contribution: Hg
Location: USA/North Carolina/Cleveland Co./Kings Mountain District/Foote Mine (Foote Lithium Co. Mine)
Mineral: Bikitaite
Image: 1410353288
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
Bikitait mit Fluorapatit

Bildbreite: 5 mm, Fundort: Foote Lithium Co. Mine, Kings Mountain District, Cleveland Co., North Carolina, USA
Copyright: Stephan Wolfsried
Contribution: Hg 2014-09-10
Locality: Foote Mine (Foote Lithium Co. Mine) / Kings Mountain District / Cleveland Co. / North Carolina / USA
Bikitait
Views (File:
1410353207
): 614
Bikitait
Bildbreite: 8 mm, Fundort: Foote Lithium Co. Mine, Kings Mountain District, Cleveland Co., North Carolina, USA
Copyright: Stephan Wolfsried; Contribution: Hg
Location: USA/North Carolina/Cleveland Co./Kings Mountain District/Foote Mine (Foote Lithium Co. Mine)
Mineral: Bikitaite
Image: 1410353207
Rating: 7 (votes: 1)
License: Usage for Mineralienatlas project only
Bikitait

Bildbreite: 8 mm, Fundort: Foote Lithium Co. Mine, Kings Mountain District, Cleveland Co., North Carolina, USA
Copyright: Stephan Wolfsried
Contribution: Hg 2014-09-10
Locality: Foote Mine (Foote Lithium Co. Mine) / Kings Mountain District / Cleveland Co. / North Carolina / USA

You find additional specimen at the Geolitho Museum

Collectors Summary

Color farblos
Streak color weiß
Hardness (Mohs) 6
Solubility +++ Säuren
Crystal System triklin, P1

Additional information / Summary

Beachten Sie bitte auch das Mineralienportrait Zeolithe - Bikitait

Chemism

Chemical formula

LiAlSi2O6·H2O

Chemical composition

Aluminium, Lithium, Silicium, Sauerstoff, Wasserstoff

Unit weight: 204.1057022 u; Number of atoms in the formula: 13

Info

Empirical formula:

LiAlSi2O6·H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

0.99

2

15.38

1.0079470

2.0158940
Lithium

Li

3.40

1

7.69

6.9412000

6.9412000
Oxygen

O

54.87

7

53.85

15.9994300

111.9960100
Aluminium

Al

13.22

1

7.69

26.9815382

26.9815382
Silicon

Si

27.52

2

15.38

28.0855300

56.1710600

Analysis wt%

SiO2 : 58.63, Al2O3 : 25.09, Li2O : 7.71, H2O : 8.62 (Ref: American Mineralogist 68)

Strunz 9th edition incl. updates

9.GD.55

9: Silikate (Germanate)
G: Gerüstsilikate (Tektosilikate) mit zeolithischem H2O; Familie der Zeolithe
D: Ketten von fünfer-Ringen
55:Bikitait-Gruppe

Lapis Classification

VIII/J.15-010

VIII: SILIKATE
J: Gerüstsilikate (mit Zeolithen)
15: Gerüstsilikate mit Zeolithstruktur

Classification by Hölzel

9.FM.200

9: SILICATES
F: Tektosilicates
M: Mordenite-Group

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Zeolite group  ⇒ BIK zeolite structure group

Optical Properties

Color

farblos

Streak color

weiß

max. Birefringence

0.013
Birefringence chart\! Bikitaite title=Birefringence chart Bikitaite

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

1.509

RI value β

1.520

RI value γ / ε

1.522

Ri mean

1.517

2V angle

Biaxial (-) 45°

Optical Data Luminescence

Color LW-UV (365nm)

  

gelblich weiß

Color SW-UV (254nm)

  

gelblich weiß

Afterglow (Persistant Luminescence)

keine Daten

Crystallography

Crystal System

triklin

Class (H-M)

1

Space Group number

1

Space Group

P1

Cell parameters a (Å)

8.613

Cell parameters b (Å)

4.962

Cell parameters c (Å)

7.600

Cell parameters a/b or c/a

1.736

Cell parameters c/b

1.532

Cell parameters α

90°

Cell parameters β

114.57

Cell parameters γ

90°

Z

2

Volume (ų)

295.397

X-Ray Powder Diffraction

9.21(80),
8.04(60),
7.84(80),
4.19(100),
3.48(100),
3.40(100),
3.29(70),
3.22(80)
XRD chart Bikitaite

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

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

6

VHN (Hardness Vickers)

730 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.28 (gemessen)

2.295 ( ρ calc. Mineralienatlas )

Instability

+++ Säuren

(Co-)Type locality

(Co-)Type locality

Simbabwe/Masvingo, Provinz/Bikita/Nolan Property

Preface

Author (Name, Year)

Hurlbut, 1957

References

American Mineralogist 42 (1957), 792

IMA group assignments

Other languages

German

Bikitait

French

Bikitaite

English

Bikitaite

Spanish

Bikitaíta

Russian

Бикитаит

Simplified Chinese

硅锂铝石

CNMNC symbol

Symbol

Bik

Locations with GPS information

IDs

GUSID (Global unique identifier short form) llVqVpV5QEmWdFbI4xwjJA
GUID (Global unique identifier) 566A5596-7995-4940-9674-56C8E31C2324
Database ID 395