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Germanite

Pictures (8 Images total)

Germanit, Bornit
Views (File:
1208198896
): 5204
Germanit, Bornit
Germanit, derb mit Bornit; Fundort: Tsumeb Mine, Otaviberge, Namibia; Größe: 30x20x15 mm
Copyright: rtbstone; Contribution: rtbstone
Collection: rtbstone
Location: Namibia/Oshikoto (Otjikoto), Region/Tsumeb/Tsumeb Mine
Mineral: Bornite, Germanite
Image: 1208198896
Rating: 7.67 (votes: 3)
License: Usage for Mineralienatlas project only
Germanit, Bornit

Germanit, derb mit Bornit; Fundort: Tsumeb Mine, Otaviberge, Namibia; Größe: 30x20x15 mm
Collection: rtbstone
Copyright: rtbstone
Contribution: rtbstone 2008-04-14
Locality: Tsumeb Mine / Tsumeb / Oshikoto (Otjikoto), Region / Namibia
Germanit
Views (File:
1269194187
): 3376
Germanit
5,0x4,5x4,7 cm, Tsumeb Mine, Otjikoto Region, Namibia
Copyright: ingo; Contribution: ingo
Collection: ingo, Collection number: A004
Location: Namibia/Oshikoto (Otjikoto), Region/Tsumeb/Tsumeb Mine
Mineral: Germanite
Image: 1269194187
License: Creative Commons - Attribution (CC-BY) V.3.0
Germanit (SNr: A004)

5,0x4,5x4,7 cm, Tsumeb Mine, Otjikoto Region, Namibia
Collection: ingo
Copyright: ingo
Contribution: ingo 2010-03-21
Locality: Tsumeb Mine / Tsumeb / Oshikoto (Otjikoto), Region / Namibia
Germanit
Views (File:
1351457158
): 2864
Germanit
Größe: 61x49x28 mm; Fundort: Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
Copyright: Watzl Minerals; Contribution: Philip Blümner
Location: Namibia/Oshikoto (Otjikoto), Region/Tsumeb/Tsumeb Mine
Mineral: Germanite
Image: 1351457158
License: Usage for Mineralienatlas project only
Germanit

Größe: 61x49x28 mm; Fundort: Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
Copyright: Watzl Minerals
Contribution: Philip Blümner 2012-10-28
Locality: Tsumeb Mine / Tsumeb / Oshikoto (Otjikoto), Region / Namibia
Germanit
Views (File:
1356724625
): 2996
Germanit
Derb metallisch blau, BB = 35 mm, Fundort: Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
Copyright: Bebo; Contribution: Münchener Micromounter
Collection: Lithothek der Münchener Micromounter, Collection number: A003200, Donator: Melanie Albert
Location: Namibia/Oshikoto (Otjikoto), Region/Tsumeb/Tsumeb Mine
Mineral: Germanite
Image: 1356724625
License: Usage for Mineralienatlas project only
Germanit (SNr: A003200)

Derb metallisch blau, BB = 35 mm, Fundort: Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
Collection: Lithothek der Münchener Micromounter
Copyright: Bebo
Contribution: Münchener Micromounter 2012-12-28
Locality: Tsumeb Mine / Tsumeb / Oshikoto (Otjikoto), Region / Namibia
Germanit
Views (File:
1361450265
): 2533
Germanit
Größe: 1,4 x 1 x 0,5 cm, Fundort: Tsumeb Mine, Otjikoto Region, Namibia
Copyright: thdun5; Contribution: thdun5
Collection: thdun5, Collection number: 02.320
Location: Namibia/Oshikoto (Otjikoto), Region/Tsumeb/Tsumeb Mine
Mineral: Germanite
Image: 1361450265
License: Usage for Mineralienatlas project only
Germanit (SNr: 02.320)

Größe: 1,4 x 1 x 0,5 cm, Fundort: Tsumeb Mine, Otjikoto Region, Namibia
Collection: thdun5
Copyright: thdun5
Contribution: thdun5 2013-02-21
Locality: Tsumeb Mine / Tsumeb / Oshikoto (Otjikoto), Region / Namibia

You find additional specimen at the Geolitho Museum

Collectors Summary

Color blass gräulich rosa
Streak color grauschwarz
Lustre Metallglanz
Hardness (Mohs) 4
Cleavages keine
Solubility +++ HNO3
Crystal System kubisch, P43n

Chemism

Chemical formula

Cu13Fe2Ge2S16

Chemical composition

Eisen, Germanium, Kupfer, Schwefel

Unit weight: 1596.1223 u; Number of atoms in the formula: 33

Info

Empirical formula:

Cu13Fe2Ge2S16

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Sulfur

S

32.14

16

48.48

32.0655000

513.0480000
Iron

Fe

7.00

2

6.06

55.8452000

111.6904000
Copper

Cu

51.76

13

39.39

63.5463000

826.1019000
Germanium

Ge

9.10

2

6.06

72.6410000

145.2820000

Analysis wt%

Ø Cu : 45.06, Fe : 8.14, Zn : 1.51, Ge : 9.61, As : 2.97, S : 31.96 (Ref: Doklady Akademiia Nauk, SSSR 87)

Strunz 9th edition incl. updates

2.CB.30

2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfoarsenide, Sulfoantimonide, Sulfobismuthide)
C: Metallsulfide, M : S = 1 : 1 (und ähnliche)
B: mit Zink (Zn), Eisen (Fe), Kupfer (Cu), Silber (Ag), usw.
30:Germanit-Gruppe

Lapis Classification

II/C.10-020

II: SULFIDE UND SULFOSALZE (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide)
C: Sulfide mit Metall : S,Se,Te ~ 1:1

Classification by Hölzel

2.CB.555

2: SULFIDES
C: Sulfides (etc) with Me/S=1/1
B: With Zn,Cu (etc), Coordination Number ~[4] Framework of Cornersharing Tetrahedra: Sphalerite-Germanite-Family
5: Germanite-Colusite-Mawsonite-Group

Dana 8th edition

02.09.04.02

02: Sulfide Minerals
09: Sulfides - Including Selenides and Tellurides where Am Bn Xp, with (m+n):p=1:1
04: Germanite Group

IMA status

Erstbeschreibung vor CNMNC-Gründung (1959), als Mineral meist anerkannt

Mineral status

anerkanntes Mineral

Optical Properties

Color

blass gräulich rosa

Streak color

grauschwarz

Lustre

Metallglanz

RI value α / ω / n

1.668

Crystallography

Crystal System

kubisch

Class (H-M)

43m

Space Group number

218

Space Group

P43n

Cell parameters a (Å)

10.585

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

2

Volume (ų)

1185.967

X-Ray Powder Diffraction

4.32(20),
3.054(100),
2.64(40),
1.87(80),
1.596(70),
1.214(30),
1.080(40),
0.895(30)
XRD chart Germanite

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

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

4

VHN (Hardness Vickers)

190 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

4.59 (gemessen)

4.469 ( ρ calc. Mineralienatlas )

Cleavages

keine

Instability

+++ HNO3

(Co-)Type locality

(Co-)Type locality

Namibia/Oshikoto (Otjikoto), Region/Tsumeb/Tsumeb Mine

Preface

Author (Name, Year)

Pufahl, 1922

Additional Information

Entdeckt 1922

References

Handbook of Mineralogy (Anthony et al.), 1 (1990), 179

Other languages

German

Germanit

Spanish

Germanita

English

Germanite

French

Germanite

Russian

Германит

Traditional Chinese

硫鍺銅礦

Simplified Chinese

硫锗铜矿

CNMNC symbol

Symbol

Ger

Locations with GPS information

IDs

GUSID (Global unique identifier short form) RjrSJenrikCUeuewqaLgqA
GUID (Global unique identifier) 25D23A46-EBE9-408A-947A-E7B0A9A2E0A8
Database ID 1369