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Gupeiite

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Gupeiit
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Gupeiit
metallisches Aggregat (bläulich glänzend) in Epoxidharz, Zarubino, Novgorod Oblast, Russland; Breite des Aggregates ~ 0,5 mm, analysiert mittels elektronoptischen Methoden
Copyright: MinTreasure.com (Carsten Slotta); Contribution: openpit
Location: Russland/Nordwestrussland, Föderationskreis
Mineral: Gupeiite
Image: 1602086141
License: Usage for Mineralienatlas project only
Gupeiit

metallisches Aggregat (bläulich glänzend) in Epoxidharz, Zarubino, Novgorod Oblast, Russland; Breite des Aggregates 0,5 mm, analysiert mittels elektronoptischen Methoden

Copyright: MinTreasure.com (Carsten Slotta)
Contribution: openpit 2020-10-07
Locality: Nordwestrussland, Föderationskreis / Russland

Collectors Summary

Color stahlgrau
Streak color schwarz
Hardness (Mohs) 5
Crystal System kubisch, Fm3m

Chemism

Chemical formula

Fe3Si

Chemical composition

Eisen, Silicium

Unit weight: 195.62113 u; Number of atoms in the formula: 4

Info

Empirical formula:

Fe3Si

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Silicon

Si

14.36

1

25.00

28.0855300

28.0855300

Iron

Fe

85.64

3

75.00

55.8452000

167.5356000

Analysis wt%

Fe : 84.80, Ni : 0.80, Mn : 0.70, Si : 14.10 (Ref: Acta Petr.Min.Analyt.84)

Strunz 9th edition incl. updates

1.BB.05

1: Elemente (Metalle, intermetallische Legierungen, Metalloide u. Nichtmetalle, Carbide, Silicide, Nitride u. Phosphide)
B: Metallische Kohlenstoffverbindungen (Carbide), Strickstoffverbindungen (Nitride) und Phosphorverbindungen (Phosphide)
B: Silicide
05:Suessit-Gupeiit-Gruppe

Lapis Classification

I/A.12-030

I: ELEMENTE
A: Metalle und intermetallische Verbindungen
12: Carbide, Nitride, Phosphide und Silicide (metallartige Verbindungen)

Classification by Hölzel

1.BB.140

1: ELEMENTS
B: Carbides, Silicides, Phosphides, Nitrides
B: Silicides

Dana 8th edition

01.01.23.02

01: Native Elements and Alloys
01: Native Elements with metallic elements other than the platinum group
23: Suessite Group silicides

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

stahlgrau

Streak color

schwarz

Crystallography

Crystal System

kubisch

Class (H-M)

m3m

Space Group number

225

Space Group

Fm3m

Cell parameters a (Å)

5.670

Cell parameters b (Å)

-

Cell parameters c (Å)

-

Cell parameters a/b or c/a

1

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

4

Volumne (ų)

182.284

X-Ray Powder Diffraction

2.83(30),
2.00(90),
1.706(20),
1.415(60),
1.156(100),
1.003(70)

XRD chart Gupeiite

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

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

5

VHN (Hardness Vickers)

504 (75g)

Density (g/cm³)

7.15 (berechnet)

7.128 ( ρ calc. Mineralienatlas )

Preface

Author (Name, Year)

Yu, 1984

References

Acta Petrologica, Mineralogica et Analytica (in Chinese) 3 (1984), 231

Michael A. Rappenglück: Natural Iron Silicides: A Systematic Review. Minerals Vol. 12, Nr. 2 (2022) Art.-Nr. 188. doi:10.3390/min12020188; Open Access

Other languages

German

Gupeiit

French

Gupeiite

English

Gupeiite

Spanish

Gupeiíta

Russian

Гупейит

Simplified Chinese

古北矿

Japanese

グペイ鉱

CNMNC (IMA)-Number

IMA 1983-087

CNMNC symbol

Symbol

Gup

Locations with GPS information