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Celsian

Pictures (2 Images total)

Celsian
Views (File:
1105088039
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Celsian
idiomorphe Kristalle; Historische Kleinstufe 3,2 x 3,5 cm; Fundort: Aberfeldy, Perthshire, Grampian Mts., Schottland
Copyright: Collector; Contribution: Mineralienatlas
Collection: Collector
Location: UK/Schottland/Perth and Kinross/Aberfeldy
Mineral: Celsian
Image: 1105088039
Rating: 7 (votes: 1)
License: Usage for Mineralienatlas project only
Celsian

idiomorphe Kristalle; Historische Kleinstufe 3,2 x 3,5 cm; Fundort: Aberfeldy, Perthshire, Grampian Mts., Schottland
Collection: Collector
Copyright: Collector
Contribution: Mineralienatlas 2005-01-07
Locality: Aberfeldy / Perth and Kinross / Schottland / UK
Celsian
Views (File:
1197012046
): 2760
Celsian
Celsian (braun) mit Calcit und Willemit; Franklin, Sussex County, New Jersey, USA; Größe; 12 x 8 cm
Copyright: John Veevaert; Contribution: Collector
Location: USA/New Jersey/Sussex Co./Franklin Mining District/Franklin
Mineral: Celsian
Image: 1197012046
Rating: 6 (votes: 1)
License: Usage for Mineralienatlas project only
Celsian

Celsian (braun) mit Calcit und Willemit; Franklin, Sussex County, New Jersey, USA; Größe; 12 x 8 cm
Copyright: John Veevaert
Contribution: Collector 2007-12-07
Locality: Franklin / Franklin Mining District / Sussex Co. / New Jersey / USA

Collectors Summary

Color farblos, gelb, weiß
Streak color weiß
Hardness (Mohs) 6.25
Solubility +++ HCl, HF
Crystal System monoklin, I2/c

Additional information / Summary

Siehe auch unser umfangreiches Feldspat Portrait

Chemism

Chemical formula

BaAl2Si2O8

Chemical composition

Aluminium, Barium, Silicium, Sauerstoff

Unit weight: 375.4572764 u; Number of atoms in the formula: 13

Info

Empirical formula:

BaAl2Si2O8

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Oxygen

O

34.09

8

61.54

15.9994300

127.9954400
Aluminium

Al

14.37

2

15.38

26.9815382

53.9630764
Silicon

Si

14.96

2

15.38

28.0855300

56.1710600
Barium

Ba

36.58

1

7.69

137.3277000

137.3277000

Analysis wt%

SiO2 : 31.90, Al2O3 : 26.81, BaO : 39.71, H2O : 1.67 (Ref: Hintze, Handbuch der Mineralogie, 1904-1974)

Strunz 9th edition incl. updates

9.FA.30

9: Silikate (Germanate)
F: Gerüstsilikate (Tektosilikate) ohne zeolithisches H2O
A: Gerüstsilikate (Tektosilicates) ohne weitere [Anionen]
30:Feldspat: Alkali

Lapis Classification

VIII/J.06-060

VIII: SILIKATE
J: Gerüstsilikate (mit Zeolithen)
6: Ohne tetraederfremde Anionen; Feldspat-Gruppe

Classification by Hölzel

9.FC.180

9: SILICATES
F: Tektosilicates
C: Feldspar-Group

Dana 8th edition

76.01.01.04

76: Tektosilicates Tectosilicate Al-Si Framework
01: Tektosilicates Tectosilicate Al-Si Framework with Al-Si frameworks
01: K (Na,Ba) feldspars

IMA status

Erstbeschreibung vor CNMNC-Gründung (1959), als Mineral meist anerkannt

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Feldspar group  ⇒ Alkali feldspar

Optical Properties

Color

farblos, gelb, weiß

Streak color

weiß

Diaphaneity (Transparency)

transparent

max. Birefringence

0.011
Birefringence chart\! Celsian title=Birefringence chart Celsian

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

1.583

RI value β

1.588

RI value γ / ε

1.594

Ri mean

1.588

2V angle

Biaxial (+) 88°

Optical Data Luminescence

Color LW-UV (365nm)

  

blau

LW-UV Intensity

mittel

MW-UV (320nm)

  

blau

MW-UV Intensity

mittel

Color SW-UV (254nm)

  

blau

SW-UV Intensity

mittel

Afterglow (Persistant Luminescence)

keine Daten

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

15

Space Group

I2/c

Cell parameters a (Å)

8.589

Cell parameters b (Å)

13.008

Cell parameters c (Å)

14.349

Cell parameters a/b or c/a

0.660

Cell parameters c/b

1.103

Cell parameters α

90°

Cell parameters β

114.55

Cell parameters γ

90°

Z

8

Volume (ų)

1458.226

X-Ray Powder Diffraction

6.523(40),
4.610(30),
3.553(40),
3.472(80),
3.349(100),
3.021(60),
2.774(40),
2.584(40)
XRD chart Celsian

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)

6.25

VHN (Hardness Vickers)

850 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

3.1 - 3.4 / Durchschnittlich = 3.25

3.42 ( ρ calc. Mineralienatlas )

Instability

+++ HCl, HF

(Co-)Type locality

(Co-)Type locality

Schweden/Värmland, Provinz/Filipstad, Gemeinde/Nordmark (Nordmarksberg)/Jakobsberg

Preface

Associations

Paracelsian, Banalsit, Hyalophan, Sanbornit, Bannisterit, Cymrit, Pennantit u.a.

Rareness

Selten

Author (Name, Year)

Sjögren, 1895

Collector information

Die besten bisher gefunden Kristalle stammen aus der Bennalt Mine, Rhow, Lleyn Peninsula in Wales und aus Aberfeldy in Schottland. (Beste Funde um 1930)

Additional Information

Feldspat-Gruppe (Buddingtonit-Orthoklas-Slawsonit-Serie)

References

Rock-forming Minerals (Deer, Howie & Zussmann), 2nd ed., 4A (2001)

IMA group assignments

 
Feldspar group
 
 
 

 
 
Alkali feldspar
 
 
 

 
 
 
Anorthoclase ?
(Na,K)AlSi3O8
triklin
C1

 
 
 
Buddingtonite
(NH4)AlSi3O8·0.5 H2O
monoklin
P21, P21/m

 
 
 
Celsian
BaAl2Si2O8
monoklin
I2/c

 
 
 
Hyalophane
(K,Ba)Al(Si,Al)3O8
monoklin
C2/m

 
 
 
Microcline
KAlSi3O8
triklin
C1

 
 
 
Orthoclase
KAlSi3O8
monoklin
C2/m

 
 
 
Rubicline
(Rb,K)[AlSi3O8]
triklin
P1

 
 
 
Sanidine
(K,Na)(Si,Al)4O8
monoklin
C2/m

Refresh list

Actuality: 08. Oct 2024 - 21:30:07

Other languages

Dutch

Celsiaan

German

Celsian

English

Celsian

French

Celsian

Spanish

Celsiana

Russian

Цельзиан

Traditional Chinese

鋇長石

Simplified Chinese

钡长石

Alternative Name

Barium-Anorthite

Barium-Anorthite (of Sjgren)

Barium-Anorthite (of Sjögren)

Germanate-celsian

English

Kasoite

CNMNC symbol

Symbol

Cls

Locations with GPS information

IDs

GUSID (Global unique identifier short form) JJzmqcdgbkKOdG-JgR-Rsg
GUID (Global unique identifier) A9E69C24-60C7-426E-8E74-6F89811F91B2
Database ID 643