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Kryachkoite (Kryachkoit)

Collectors Summary

Crystal System orthorhombisch, Cmc21

Chemism

Chemical formula

(Al,Cu)6(Fe,Cu)

Chemical composition

Aluminium, Eisen, Kupfer

Unit weight: 274.5068469 u; Number of atoms in the formula: 7

Info

Empirical formula:

(Al0.75Cu0.25)6(Fe0.75Cu0.25)

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Aluminium

Al

44.23

4.5

64.29

26.9815382

121.4169219

Iron

Fe

15.26

0.75

10.71

55.8452000

41.8839000

Copper

Cu

40.51

1.75

25.00

63.5463000

111.2060250

Strunz 9th edition incl. updates

1.A.

1: Elemente (Metalle, intermetallische Legierungen, Metalloide u. Nichtmetalle, Carbide, Silicide, Nitride u. Phosphide)
A: Metalle und intermetallische Legierungen

IMA status

anerkannt - CNMNC Newsletter No. 33, Oktober 2016

Mineral status

anerkanntes Mineral

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mm2

Space Group number

36

Space Group

Cmc21

Cell parameters a (Å)

7.460

Cell parameters b (Å)

6.434

Cell parameters c (Å)

8.777

Cell parameters a/b or c/a

1.159

Cell parameters c/b

1.364

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Volume (ų)

421.275

Crystal structure

bekanntes synthetisches Analog

X-Ray Powder Diffraction

4.872(38), 2.242(61), 2.164(35), 2.130(87), 2.061(46), 2.051(100), 2.007(32), 2.001(62)

XRD chart Kryachkoite

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

(Co-)Type locality

(Co-)Type locality

Russland/Ferner Osten, Föderationskreis/Autonomer Kreis der Tschuktschen (Tschukotka, Chukotka)/Anadyrski (Anadyrsky), Rajon/Khatyrka Meteorit

Type material

Smithsonian National Museum of Natural History, Washington DC, USA

Collection number of type material

USNM 7908

Preface

Author (Name, Year)

Chi Ma, Chaney Lin, Luca Bindi und Paul J. Steinhardt

References

Ma, C., Lin, C., Bindi, L. und Steinhardt, PJ (2016) Kryachkoite, IMA 2016-062. CNMNC Newsletter Nr 33 Oktober 2016 Seite 1142; Mineralogical Magazine, 80, 1135-1144.
Chi Ma, http://www.its.caltech.edu/chima/

Other languages

German

Kryachkoit

English

Kryachkoite

Russian

Крячкоит

Simplified Chinese

斜方铝铁

CNMNC (IMA)-Number

IMA 2016-062

CNMNC symbol

Symbol

Kyh

Locations with GPS information

IDs

GUSID (Global unique identifier short form) mBq9kou66USLS0DxVRMjgw
GUID (Global unique identifier) 92BD1A98-BA8B-44E9-8B4B-40F155132383
Database ID 8176