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Alexkuznetsovite-(La)

Collectors Summary

Crystal System monoklin, P21/c

Chemism

Chemical formula

La2Mn(CO3)(Si2O7)

Chemical composition

Lanthanum, Mangan, Silicium, Kohlenstoff, Sauerstoff

Unit weight: 560.9252299 u; Number of atoms in the formula: 16

Info

Empirical formula:

La2Mn(CO3)(Si2O7)

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Carbon

C

2.14

1

6.25

12.0107800

12.0107800

Oxygen

O

28.52

10

62.50

15.9994300

159.9943000

Silicon

Si

10.01

2

12.50

28.0855300

56.1710600

Manganese

Mn

9.79

1

6.25

54.9380499

54.9380499

Lanthanum

La

49.53

2

12.50

138.9055200

277.8110400

Strunz 9th edition incl. updates

9.BE.90

9: Silikate (Germanate)
B: Gruppensilikate (Sorosilikate)
E: Si2O7 Gruppen mit zusätzlichen Anionen; Kationen in oktahedraler [6] und größerer Koordination
90:

IMA status

anerkannt - CNMNC Newsletter 52 (2019)

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

Biraite group

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

14

Space Group

P21/c

Cell parameters a (Å)

6.5642(3)

Cell parameters b (Å)

6.7689(3)

Cell parameters c (Å)

18.721(1)

Cell parameters a/b or c/a

0.97

Cell parameters c/b

2.766

Cell parameters α

90°

Cell parameters β

108.684(6)°

Cell parameters γ

90°

Volume (ų)

787.982

Crystal structure

Das La- und Mn-dominante Analog von Birait-(Ce); Struktur ermittelt

X-Ray Powder Diffraction

4.595(63), 4.489(56), 4.331(62), 4.208(50), 3.171(49), 2.962(100), 2.785(76), 2.692(59)

XRD chart Alexkuznetsovite-(La)

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

(Co-)Type locality

(Co-)Type locality

Russland/Ural, Föderationskreis/Tscheljabinsk (Chelyabinsk), Oblast/Kyschtym (Kishtim)/Mochalin Log (Мочалин лог)

Type material

Das Typenmaterial ist in den Sammlungen des Mineralogischen Museums Fersman, Russische Akademie der Wissenschaften, Leninskij Prospekt 18-2, Moskau 119071, Russland, Registernummer 54161, hinterlegt.

Preface

Author (Name, Year)

Anatoly V. Kasatkin, Natalia V. Zubkova, Igor V. Pekov, Nikita V. Chukanov, Radek Škoda, Atali A. Agakhanov, Dmitriy I. Belakovskiy und Dmitry Y. Pushcharovsky (2021)

References

  • Kasatkin, A.V., Zubkova, N.V., Pekov, I.V., Chukanov, N.V., Škoda, R., Agakhanov, A.A., Belakovskiy, D.I. and Pushcharovsky, D.Y. (2019) Alexkuznetsovite-(La), IMA 2019-081. CNMNC Newsletter No. 52; Mineralogical Magazine, 83, https://doi.org/10.1180/mgm.2019.73
  • Anatoly V. Kasatkin; Natalia V. Zubkova ; Igor V. Pekov; Nikita V. Chukanov; Radek Škoda, Atali A. Agakhanov; Dmitriy I. Belakovskiy; Sergey N. Britvin; Dmitry Yu. Pushcharovsky: The mineralogy of the historical Mochalin Log REE deposit, South Urals, Russia. Part IV. Alexkuznetsovite-(La), La2Mn(CO3)(Si2O7), alexkuznetsovite-(Ce), Ce2Mn(CO3)(Si2O7) and biraite-(La), La2Fe2+(CO3)(Si2O7), three new isostructural minerals and a definition of the biraite group. Mineralogical Magazine Vol. 85, Nr. 5 (2021) S. 772-783.

IMA group assignments

Other languages

German

Alexkuznetsovit-(La)

English

Alexkuznetsovite-(La)

Russian

Алекскузнецовит-(La)

CNMNC (IMA)-Number

IMA 2019-081

CNMNC symbol

Symbol

Axk-La

Locations with GPS information

IDs

GUSID (Global unique identifier short form) HWPLkG1-skeo0vyEzIXlfg
GUID (Global unique identifier) 90CB631D-7E6D-47B2-A8D2-FC84CC85E57E
Database ID 8777