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Gallite

Pictures (2 Images total)

Gallit
Views (Image: 1356725475): 2301
Gallit (SNr: A008128)

Derb metallisch schwarzblau, BB = 8 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
Gallit
Views (Image: 1271528918): 2013
Gallit

Gallit mit Germanit und Renierit. Größe: 3,9 x 2,8 x 1,2 cm, Fundort: Tsumeb Mine, Otjikoto Region, Namibia.

Copyright: Rob Lavinsky
Contribution: thdun5 2010-04-17
Locality: Tsumeb Mine / Tsumeb / Oshikoto (Otjikoto), Region / Namibia

Collectors Summary

Color grau-met.
Streak color grauschwarz
Hardness (Mohs) 3.00 - 3.50
Crystal System tetragonal, I42d

Chemism

Chem­ical formula

CuGaS2

Chem­ical com­po­si­tion

Gallium, Kupfer, Schwefel

Unit weight: 197.4004 u; Number of atoms in the formula: 4

Info

Empirical formula:

CuGaS2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Sulfur

S

32.49

2

50.00

32.0655000

64.1310000

Copper

Cu

32.19

1

25.00

63.5463000

63.5463000

Gallium

Ga

35.32

1

25.00

69.7231000

69.7231000

Anal­y­sis wt%

Cu : 31.20, Fe : 2.30, Zn : 1.70, Ga : 32.40, S : 32.80 (Ref: Neues Jahrbuch für Mineralogie, (Monatshefte) 69)

Strunz 9th edi­tion incl. updates

2.CB.10

2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfarsenite, Sulfantimonite, Sulfbismuthite)
C: Metallsulfide, M : S = 1 : 1 (und ähnliche)
B: mit Zink (Zn), Eisen (Fe), Kupfer (Cu), Silber (Ag), usw.
10:Chalkopyrit-Gruppe

Lapis Clas­sifica­tion

II/C.03-030

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

Clas­sifica­tion by Hölzel

2.CB.230

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
2: Chalcopyrite-Group

Dana 8th edi­tion

02.09.01.03

02: Sulfide Minerals
09: Sulfides - Including Selenides and Tellurides where Am Bn Xp, with (m+n):p=1:1
01: Chalcopyrite Group (Tetragonal: I-42d)

IMA sta­tus

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

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Clas­sifica­tion

Chalcopyrite group

Optical Properties

Color

grau-met.

Streak color

grauschwarz

Crystallography

Crystal Sys­tem

tetragonal

Class (H-M)

42m

Space Group number

122

Space Group

I42d

Cell param­e­ters a (Å)

5.36

Cell param­e­ters b (Å)

-

Cell param­e­ters c (Å)

10.49

Cell param­e­ters a/b or c/a

1.957

Cell param­e­ters c/b

-

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

90°

Z

4

Volumne (ų)

301.374

X-Ray Pow­der Diffrac­tion

3.064(100),
1.891(50),
1.872(80),
1.610(60),
1.585(30),
1.337(20),
1.225(10),
1.215(30)

XRD chart Gallite

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

Crystal Structure 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

3.00 - 3.50

VHN (Hard­ness Vick­ers)

108 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

4.40 (berechnet)

4.35 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

Demokratische Republik Kongo/Katanga (Shaba), Provinz/Ober-Katanga (Haut-Katanga), Distrikt/Kipushi/Kipushi Mine

Type mate­r­ial

Mineralogische Sammlungen Technische Universität Berlin

Col­lec­tion number of type mate­r­ial

86/67, 87/564, 396 / 41-10, 45-1, Schrank 97

Par­a­ge­n­e­sis of type mate­r­ial

Reniérit

Preface

Author (Name, Year)

Strunz & Geier & Seeliger, 1958

References

Strunz Mineralogical Tables 9. Edition

American Mineralogist (1959): 44: 906.

Strunz, H., Geier, B.H., and Seeliger, E. (1958) Gallite, CuGaS2, das erste Selbst dige Galliummineral, und seine Verbreitung in den Erzen der Tsumeb- und Kipushi-Mine. Neues Jahrbuch für Mineralogie, Monatshefte: 241-264.

IMA group assignments


 
 
CuFeS2
tetragonal
I42d

 
 
CuFeSe2
tetragonal
P42c

 
 
CuGaS2
tetragonal
I42d

 
 
AgInS2
tetragonal
I42d

 
 
AgFeS2
tetragonal
I42d

 
 
CuInS2
tetragonal
I42d

 
 
NiFeS2
tetragonal
I42d

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Actuality: 19. May 2022 - 23:13:45

Other languages

Spanish

Galita

German

Gallit

English

Gallite

French

Gallite

Russian

Галлит

Traditional Chinese

硫鎵銅礦

Simplified Chinese

硫镓铜矿

CNMNC symbol

Symbol

Gal

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