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Galgenbergite-(Ce)

Collectors Summary

Color farblos, weiß
Streak color weiß
Lustre Glasglanz
Hardness (Mohs) 2.00 - 3.00
Solubility +++ Säuren
Crystal System triklin, P1

Chemism

Chemical formula

Ca(Ce,La,Nd)2[CO3]4·H2O

Chemical composition

Calcium, Cerium, Lanthanum, Neodymium, Kohlenstoff, Sauerstoff, Wasserstoff

Unit weight: 578.461236 u; Number of atoms in the formula: 22

Info

Empirical formula:

Ca(Ce0.6La0.3Nd0.1)2[CO3]4·H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

0.35

2

9.09

1.0079470

2.0158940
Carbon

C

8.31

4

18.18

12.0107800

48.0431200
Oxygen

O

35.96

13

59.09

15.9994300

207.9925900
Calcium

Ca

6.93

1

4.55

40.0784000

40.0784000
Lanthanum

La

14.41

0.6

2.73

138.9055200

83.3433120
Cerium

Ce

29.07

1.2

5.45

140.1161000

168.1393200
Neodymium

Nd

4.99

0.2

0.91

144.2430000

28.8486000

Strunz 9th edition incl. updates

5.CC.40

5: Carbonate (Carbonate, Nitrate)
C: Carbonate ohne weitere Anionen, mit H2O
C: Mit Seltenerden-Elementen (REE)
40:

Lapis Classification

V/D.03-055

V: NITRATE, CARBONATE UND BORATE
D: Wasserhaltige Carbonate, ohne fremde Anionen

Classification by Hölzel

5.CC.430

5: CARBONATES NITRATES ARSENITES SULFITES SELENITES TELLURITES IODATES
C: Carbonates (-Anions +Water)
C: With large Cations, mostly REElements
4: Orthorhombic, monoclinic or triclinic

Dana 8th edition

15.04.09.01

15: Hydrated Carbonates
04: Hydrated Carbonates

IMA status

anerkannt 1997

Mineral status

anerkanntes Mineral

Optical Properties

Color

farblos, weiß

Streak color

weiß

Lustre

Glasglanz

max. Birefringence

0.115
Birefringence chart\! Galgenbergite-(Ce) title=Birefringence chart Galgenbergite-(Ce)

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

1.635

RI value β

1.725

RI value γ / ε

1.750

Ri mean

1.703

2V angle

Biaxial (-) 53°

Crystallography

Crystal System

triklin

Class (H-M)

1

Space Group number

2

Space Group

P1

Cell parameters a (Å)

6.397

Cell parameters b (Å)

6.389

Cell parameters c (Å)

12.383

Cell parameters a/b or c/a

1.001

Cell parameters c/b

1.938

Cell parameters α

96.58

Cell parameters β

100.85

Cell parameters γ

100.47

Z

2

Volumne (ų)

482.939

X-Ray Powder Diffraction

5.901(60),
5.049(70),
4.695(40),
4.468(40),
4.006(100),
3.899(40),
3.229(30),
3.005(100)
XRD chart Galgenbergite-(Ce)

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)

2.00 - 3.00

VHN (Hardness Vickers)

53 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

4.02 (berechnet)

3.978 ( ρ calc. Mineralienatlas )

Instability

+++ Säuren

(Co-)Type locality

(Co-)Type locality

Österreich/Steiermark/Leoben, Bezirk/St. Michael in Obersteiermark/Galgenbergtunnel

Preface

Name from

Typlokalität

Author (Name, Year)

Hollerer, 1998

References

Hollerer, C., Ettinger, K., Taucher, J. & Walter, F. : CaRE2(CO3)4, ein neues Mineral aus der Steiermark, Österreich. Mitteilungen, Österreichische Mineralogische Gesellschaft 141 (1996), 114-115.

Hollerer, C. E.; Ca(REE)2(CO3)4.H2O, ein neues Mineral aus der Steiermark - Mitteilungen, Österreichische Mineralogische Gesellschaft 143 (1998), 200-201.

American Mineralogist 89 (2004), 1826.

Other languages

German

Galgenbergit-(Ce)

Spanish

Galgenbergita-(Ce)

French

Galgenbergite

English

Galgenbergite-(Ce)

Russian

Гальгенбергит-(Ce)

Alternative Name

German

Galgenbergit

Spanish

Galgenbergita

CNMNC (IMA)-Number

IMA 1997-036

CNMNC symbol

Symbol

Ggb-Ce

Locations with GPS information