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Gasparite-(La)

Collectors Summary

Crystal System monoklin, P21/n

Chemism

Chemical formula

LaAsO4

Chemical composition

Arsen, Lanthanum, Sauerstoff

Unit weight: 277.824842 u; Number of atoms in the formula: 6

Info

Empirical formula:

LaAsO4

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Oxygen

O

23.04

4

66.67

15.9994300

63.9977200
Arsenic

As

26.97

1

16.67

74.9216020

74.9216020
Lanthanum

La

50.00

1

16.67

138.9055200

138.9055200

Strunz 9th edition incl. updates

8.AD.50

8: Phosphate, Arsenate, Vanadate
A: Phosphate, etc., ohne weitere Anionen, ohne H2O
D: Mit ausschließlich großen [Kationen]
50:Monazit-Gruppe

IMA status

anerkannt - CNMNC Newsletter 46, Oktober 2018

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Monazite group

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

14

Space Group

P21/n

Cell parameters a (Å)

6.7646(4)

Cell parameters b (Å)

7.2184(9)

Cell parameters c (Å)

7.0040(4)

Cell parameters a/b or c/a

0.937

Cell parameters c/b

0.97

Cell parameters α

90°

Cell parameters β

104.51(1)°

Cell parameters γ

90°

Volumne (ų)

331.094

Kristall structure

Monazit-Gruppe

X-Ray Powder Diffraction

4.21(22), 3.60(20), 3.39(46), 3.17(100), 2.98(62), 2.02(24), 1.94(25), 1.79(22)
XRD chart Gasparite-(La)

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

Crystals 3D

Open larger view

(Co-)Type locality

(Co-)Type locality

Kasachstan/Qaraghandy oblysy (Karaganda)/Zhayrem (Zhairem; Djayrem)/Karazhal/Ushkatan (Ushkatyn)/Ushkatyn-3 Mn-Fe Lagerstätte

Type material

Das Typenmaterial befindet sich in den Sammlungen des Mineralogischen Museums, Abteilung für Mineralogie, Staatliche Universität St. Petersburg, St. Petersburg, Russland, Katalognummer 19692

Preface

Author (Name, Year)

Oleg S. Vereshchagin, Elena N. Perova, Sergey N. Britvin, Aleksey I. Brusnitsyn, Yury S. Polekhovsky, Vladimir V. Shilovskikh und Vladimir N. Bocharov (2018)

References

Vereshchagin, O.S., Perova, E.N., Britvin, S.N., Brusnitsyn, A.I., Polekhovsky, Y.S., Shilovskikh, V.V. and Bocharov, V.N. (2018) Gasparite-(La), IMA 2018-079. CNMNC Newsletter No. 46, December 2018, page xxxx; Mineralogical Magazine, 82, xxxx–xxxx.

IMA group assignments

 
Monazite group
 
 
 

 
 
Cheralite-(Ce) ?
(Ca,Ce,Th,U)[(P,Si)O4]
monoklin
P21/n

 
 
Gasparite-(Ce)
Ce(AsO4)
monoklin
P21/n

 
 
Gasparite-(La)
LaAsO4
monoklin
P21/n

 
 
Monazite-(Ce)
Ce(PO4)
monoklin
P21/n

 
 
Monazite-(Gd)
Gd(PO4)
monoklin
P21/n

 
 
Monazite-(La)
La(PO4)
monoklin
P21/n

 
 
Monazite-(Nd)
Nd(PO4)
monoklin
P21/n

 
 
Monazite-(Sm)
Sm(PO4)
monoklin
P21/n

 
 
Rooseveltite
Bi(AsO4)
monoklin
P21/n

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Actuality: 04. Jun 2023 - 02:53:33

Other languages

German

Gasparit-(La)

English

Gasparite-(La)

CNMNC (IMA)-Number

IMA 2018-079

CNMNC symbol

Symbol

Gsp-La

Locations with GPS information

IDs

GUSID (Global unique identifier short form) J0rTZJivr0WbrxTPD9B5hQ
GUID (Global unique identifier) 64D34A27-AF98-45AF-9BAF-14CF0FD07985
Database ID 8596