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Electrum

Pictures (15 Images total)

Gold ged., Var. Elektrum
Views (File:
1567273078
): 8282, Rating: 8.88
Gold ged., Var. Elektrum
FO: Grube Clara/Schwarzwald; Bildbreite ca. 18mm (!); Fund von Anfang der 1980er Jahre; EDX analysiert: Au 70% / Ag 30%
Copyright: etalon; Contribution: etalon
Collection: Reinhard Motzigemba
Location: Deutschland/Baden-Württemberg/Freiburg, Bezirk/Ortenaukreis/Oberwolfach/Grube Clara
Mineral: Electrum, Gold
Image: 1567273078
Rating: 8.88 (votes: 8)
License: Usage for Mineralienatlas project only
Gold ged., Var. Elektrum  E
Analysed with energy dispersive X-ray spectroscopy EDX

FO: Grube Clara/Schwarzwald; Bildbreite ca. 18mm (!); Fund von Anfang der 1980er Jahre; EDX analysiert: Au 70% / Ag 30%

Collection: Reinhard Motzigemba
Copyright: etalon
Contribution: etalon 2019-08-31
Locality: Grube Clara / Oberwolfach / Ortenaukreis / Freiburg, Bezirk / Baden-Württemberg / Deutschland
Elektrum
Views (File:
1228247988
): 18625, Rating: 7.5
Elektrum
Fundort: Manhattan, Manhattan District, Nye Co., Nevada, USA
Copyright: Rob Lavinsky; Contribution: slugslayer
Location: USA/Nevada/Nye Co./Manhattan District/Manhattan
Mineral: Electrum
Image: 1228247988
Rating: 7.5 (votes: 4)
License: Usage for Mineralienatlas project only
Elektrum

Fundort: Manhattan, Manhattan District, Nye Co., Nevada, USA

Copyright: Rob Lavinsky
Contribution: slugslayer 2008-12-02
Locality: Manhattan / Manhattan District / Nye Co. / Nevada / USA
Elektrum
Views (File:
1221816457
): 25662
Elektrum
Round Mountain Mine, Round Mountain District, Nye County, Nevada, USA. 4,5 cm. Enthält 33,3 % Silber.
Copyright: Mark Wrigley; Contribution: Collector
Location: USA/Nevada/Nye Co./Round Mountain District/Round Mountain Mine
Mineral: Electrum
Image: 1221816457
License: Usage for Mineralienatlas project only
Elektrum

Round Mountain Mine, Round Mountain District, Nye County, Nevada, USA. 4,5 cm. Enthält 33,3 % Silber.

Copyright: Mark Wrigley
Contribution: Collector 2008-09-19
Locality: Round Mountain Mine / Round Mountain District / Nye Co. / Nevada / USA
Elektrum
Views (File:
1252689516
): 11199
Elektrum
Größe: 8 mm, Fundort: Rauriser Goldberg, Kolm- Saigurn, Alteck, Hüttwinkeltal, Rauris, Hohe Tauern, Salzburg, Österreich.
Copyright: Martin Slama; Contribution: SENNAH
Collection: Martin Slama
Location: Österreich/Salzburg/Zell am See, Bezirk (Pinzgau)/Rauris/Raurisertal/Kolm-Saigurn
Mineral: Electrum
Image: 1252689516
License: Usage for Mineralienatlas project only
Elektrum

Größe: 8 mm, Fundort: Rauriser Goldberg, Kolm- Saigurn, Alteck, Hüttwinkeltal, Rauris, Hohe Tauern, Salzburg, Österreich.

Collection: Martin Slama
Copyright: Martin Slama
Contribution: SENNAH 2009-09-11
Locality: Kolm-Saigurn / Raurisertal / Rauris / Zell am See, Bezirk (Pinzgau) / Salzburg / Österreich
Elektrum
Views (File:
1507122882
): 2493
Elektrum
Elektrum, Zorge/Harz, Bildbreite etwa 2 mm
Copyright: Joy Desor; Contribution: ganomatit
Collection: ganomatit
Location: Deutschland/Niedersachsen/Göttingen, Landkreis/Zorge
Mineral: Electrum
Image: 1507122882
License: Usage for Mineralienatlas project only
Elektrum  E
Analysed with energy dispersive X-ray spectroscopy EDX

Elektrum, Zorge/Harz, Bildbreite etwa 2 mm

Collection: ganomatit
Copyright: Joy Desor
Contribution: ganomatit 2017-10-04
Locality: Zorge / Göttingen, Landkreis / Niedersachsen / Deutschland

You find additional specimen at the Geolitho Museum

Collectors Summary

Color silbrig-golden
Lustre Metallglanz
Crystal System kubisch, Fm3m

Chemism

Chemical formula

(Au,Ag)

Additional chem. information

Eine Varietät von Gold üblicherweise mit mehr als 20 Gew.% Silber.

Chemical composition

Gold, Silber

Unit weight: 174.691969 u; Number of atoms in the formula: 1

Info

Empirical formula:

(Au0.75Ag0.25)

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Silver

Ag

15.44

0.25

25.00

107.8682200

26.9670550

Gold

Au

84.56

0.75

75.00

196.9665520

147.7249140

Strunz 9th edition incl. updates

1.AA.05

1: Elemente (Metalle, intermetallische Legierungen, Metalloide u. Nichtmetalle, Carbide, Silicide, Nitride u. Phosphide)
A: Metalle und intermetallische Legierungen
A: Kupfer-Cupalit-Familie
05:Kupfer-Gruppe

IMA status

nicht anerkannt, Zwischenglied zwischen 2 anerkannten Mineralien

Mineral status

Varietät

Variety / polytype of

Gold

Optical Properties

Color

silbrig-golden

Lustre

Metallglanz

Crystallography

Crystal System

kubisch

Class (H-M)

m3m

Space Group number

225

Space Group

Fm3m

Cell parameters a (Å)

4.08

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

Volume (ų)

67.917

X-Ray Powder Diffraction

2.36(40),
2.04(30),
1.443(40),
1.232(50),
0.938(60),
0.913(60),
0.834(70),
0.786(100)

XRD chart Electrum

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

Crystals 3D

Open larger view

Physical Properties

Density (g/cm³)

Je nach Legierung um 16

17.084 ( ρ calc. Mineralienatlas )

Preface

Author (Name, Year)

Plinius & 77 A.D.

References

Dana's System of Mineralogy, 7th edition, 1 (1944), 91.

Geological Society of America Memoir 85 (1962), 11.

Mineralium Deposita 22 (1987), 309.

Strunz Mineralogical Tables 9. Edition (2001), 34.

Other languages

English

Electrum

French

Electrum

German

Elektrum

Spanish

Oroche

Russian

Электрум

Alternative Name

Simplified Chinese

银金矿

Navigation

Locations with GPS information

IDs

GUSID (Global unique identifier short form) n8s8KyoArkyW7drhTdtnrw
GUID (Global unique identifier) 2B3CCB9F-002A-4CAE-96ED-DAE14DDB67AF
Database ID 4502