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Brattforsite (Brattforsit)

Collectors Summary

Crystal System monoklin, C2/c

Chemism

Chem­ical formula

Mn19As12O36Cl2

Chem­ical com­po­si­tion

Arsen, Chlor, Mangan, Sauerstoff

Unit weight: 2589.7680521 u; Number of atoms in the formula: 69

Info

Empirical formula:

Mn19As12O36Cl2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

22.24

36

52.17

15.9994300

575.9794800

Chlorine

Cl

2.74

2

2.90

35.4532000

70.9064000

Manganese

Mn

40.31

19

27.54

54.9380499

1,043.8229481

Arsenic

As

34.72

12

17.39

74.9216020

899.0592240

IMA sta­tus

anerkannt - CNMNC Newsletter 54 (2020)

Min­eral sta­tus

anerkanntes Mineral

Crystallography

Crystal Sys­tem

monoklin

Class (H-M)

2/m

Space Group number

15

Space Group

C2/c

Cell param­e­ters a (Å)

27.7223(9)

Cell param­e­ters b (Å)

19.5763(7)

Cell param­e­ters c (Å)

19.5806(7)

Cell param­e­ters a/b or c/a

1.416

Cell param­e­ters c/b

1

Cell param­e­ters α

90°

Cell param­e­ters β

134.541(1)°

Cell param­e­ters γ

90°

Volumne (ų)

7573.948

Kristall struc­ture

Das Cl Analog von Magnussonit, mit niedrigerer Symmetrie; Struktur ermittelt

X-Ray Pow­der Diffrac­tion

2.843(100), 2.828(99), 2.471(16), 2.448(28), 1.746(16), 1.739(25), 1.731(32), 1.475(16)

XRD chart Brattforsite

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

(Co-)Type locality

(Co-)Type locality

Schweden/Värmland, Provinz/Filipstad, Gemeinde/Nordmark (Nordmarksberg)/Brattfors Gruvan

Type mate­r­ial

Das Typenmaterial befindet sich in den mineralogischen Sammlungen der Abteilung für Geowissenschaften, Schwedisches Museum für Naturgeschichte, Box 50007, SE-10405 Stockholm, Schweden, Sammlungsnummer GEO-NRM Nr. 19100303, und dem Naturhistorischen Museum, Universität Pisa, Via Roma 79, Calci (PI), Italien, Katalognummer 19912

Preface

Author (Name, Year)

Dan Holtstam, Cristian Biagioni, und Ulf Hålenius (2020)

References

Holtstam, D., Biagioni, C., and Hålenius, U.: Brattforsite, IMA 2019-127, in: CNMNC Newsletter 54, Eur. J. Mineral., 32, https://doi.org/10.5194/ejm-32-275-2020, 2020.

Other languages

German

Brattforsit

English

Brattforsite

IMA Number

IMA 2019-127

Automatic Links to external internet sources (Responsibility is with the operator)

German pages

DeWikiPedia - search for: Brattforsit
Google-Bilder-Suche - search for: Brattforsit
Mineralogisch-Petrographisches-Institut Hamburg - search for: Brattforsit

English pages

Mindat - search for: Brattforsite
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Handbook-of-Mineralogy - search for: Brattforsite
RRUFF - Raman, XRD and other mineral data - search for: Brattforsite
RRUFF - References and PDF downloads - search for: Brattforsite
American-Mineralogist-Crystal-Structure-Database - search for: Brattforsite
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Mineral Dealer

German pages

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Locations with GPS information




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