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Fischesserite

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Fischesserit
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Fischesserit

De Lamar Mine, Owyhee County, Idaho, USA. BB 1,0mm

Collection: Mabu
Copyright: Mabu
Contribution: Mabu 2014-11-25
Locality: De Lamar Mine / De Lamar District / Owyhee Co. / Idaho / USA

Collectors Summary

Color silberweiß
Streak color 1971
Hardness (Mohs) 2
Crystal System kubisch, I4132

Chemism

Chem­ical formula

Ag3AuSe2

Chem­ical com­po­si­tion

Gold, Selen, Silber

Unit weight: 678.497212 u; Number of atoms in the formula: 6

Info

Empirical formula:

Ag3AuSe2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Selenium

Se

23.28

2

33.33

78.9630000

157.9260000

Silver

Ag

47.69

3

50.00

107.8682200

323.6046600

Gold

Au

29.03

1

16.67

196.9665520

196.9665520

Anal­y­sis wt%

Ag : 47.50, Au : 27.40, Se : 24.40 (Ref: Bulletin de Mineralogie 71)

Strunz 9th edi­tion incl. updates

2.BA.75

2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfarsenite, Sulfantimonite, Sulfbismuthite)
B: Metallsulfide, M : S > 1 : 1 (hauptsächlich 2 : 1)
A: mit Kupfer (Cu), Silber (Ag), Gold (Au)
75:Petzit-Gruppe

Lapis Clas­sifica­tion

II/B.07-050

II: SULFIDE UND SULFOSALZE (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide)
B: Sulfide, Selenide und Telluride mit Verhältnis Metall : S,Se,Te > 1:1
7: Sulfide, Selenide und Telluride mit vorwiegend Kupfer und Silber/Gold

Clas­sifica­tion by Hölzel

2.BA.810

2: SULFIDES
B: Sulfides (etc) with Me/S > 1/1 (mostly 2/1)
A: With Cu,Ag,Au
8: Petzite-Bezsmallertnovite-Group

Dana 8th edi­tion

02.04.03.02

02: Sulfide Minerals
04: Sulfides - Including Selenides and Tellurides where Am Bn Xp, with (m+n):p=2:1
03: Uytenbogaardtite Group

IMA sta­tus

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

silberweiß

Streak color

1971

Diaphane­ity (Trans­parency)

opak

Crystallography

Crystal Sys­tem

kubisch

Class (H-M)

432

Space Group number

214

Space Group

I4132

Cell param­e­ters a (Å)

9.976

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

8

Volumne (ų)

992.817

X-Ray Pow­der Diffrac­tion

7.08(60),
2.662(100),
2.229(80),
2.035(80),
1.954(60),
1.820(80),
1.332(60),
1.266(70)

XRD chart Fischesserite

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

Crystal Structure 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

2

VHN (Hard­ness Vick­ers)

33 (50g)

Density (g/cm³)

9.05

9.078 ( ρ calc. Mineralienatlas )

Preface

Asso­cia­tions

Calcit, Naumannit, Clausthalit, Berzelianit, Gold

Author (Name, Year)

Johan & Picot & Pierrot & Kvacek, 1971

References

Bulletin de la Société Française Minéralogie et de Cristallographie 94 (1971), 381

Related minerals "Strunz Classification" (9. Edition) [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Petzite

Ag3AuTe2

kubisch : 432 : I4132

2.BA.75

Penzhinite

(Ag,Cu)4Au(S,Se)4

hexagonal : 622 : P6322

2.BA.75

Petrovskaite

AuAg(S,Se)

monoklin : 2, m, 2/m : P2, Pm, P2/m

2.BA.75

Fischesserite

Ag3AuSe2

kubisch : 432 : I4132

2.BA.75

Uytenbogaardtite

Ag3AuS2

trigonal : 3m : R3c

2.BA.75

Related minerals "Lapis Classification" [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Petrovskaite

AuAg(S,Se)

monoklin : 2, m, 2/m : P2, Pm, P2/m

II/B.07-010

Uytenbogaardtite

Ag3AuS2

trigonal : 3m : R3c

II/B.07-020

Criddleite

TlAg2Au3Sb10S10

monoklin : 2/m, 2, m : A2/m, A2, Am

II/B.07-030

Penzhinite

(Ag,Cu)4Au(S,Se)4

hexagonal : 622 : P6322

II/B.07-040

Fischesserite

Ag3AuSe2

kubisch : 432 : I4132

II/B.07-050

Petzite

Ag3AuTe2

kubisch : 432 : I4132

II/B.07-060

Kurilite

Ag8Te3Se

trigonal : 3 : R3

II/B.07-065

Muthmannite

AuAgTe2

monoklin : 2/m : P2/m

II/B.07-070

Related minerals "Hoelzel Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Uytenbogaardtite

Ag3AuS2

trigonal : 3m : R3c

2.BA.800

Fischesserite

Ag3AuSe2

kubisch : 432 : I4132

2.BA.810

Petzite

Ag3AuTe2

kubisch : 432 : I4132

2.BA.820

Penzhinite

(Ag,Cu)4Au(S,Se)4

hexagonal : 622 : P6322

2.BA.850

Petrovskaite

AuAg(S,Se)

monoklin : 2, m, 2/m : P2, Pm, P2/m

2.BA.860

Bezsmertnovite

(Au,Ag)4Cu(Te,Pb)

orthorhombisch : mmm : Pmmn

2.BA.870

Bogdanovite

(Au,Te,Pb)3(Cu,Fe)

kubisch : m3m : Pm3m

2.BA.880

Bilibinskite

PbAu3Cu2Te2

2.BA.890

Related minerals "Dana 8. Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Acanthite

Ag2S

monoklin : 2/m : P21/n

02.04.01.01

Naumannite

Ag2Se

orthorhombisch : 222 : P212121

02.04.01.02

Aguilarite

Ag4SeS

02.04.01.03

Hessite

Ag2Te

monoklin : 2/m : P21/c

02.04.02.01

Cervelleite

Ag4TeS

monoklin : 2/m : P21/n

02.04.02.02

Uytenbogaardtite

Ag3AuS2

trigonal : 3m : R3c

02.04.03.01

Fischesserite

Ag3AuSe2

kubisch : 432 : I4132

02.04.03.02

Petzite

Ag3AuTe2

kubisch : 432 : I4132

02.04.03.03

Jalpaite

Ag3CuS2

tetragonal : 4/mmm : I41/amd

02.04.04.01

Selenojalpaite

Ag3CuSe2

tetragonal : 4/mmm : I41/amd

02.04.04.02

Mckinstryite

Ag5Cu3S4

orthorhombisch : mmm, mm2 : Pnma

02.04.05.01

Stromeyerite

AgCuS

orthorhombisch : mm2 : Cmc21

02.04.06.01

Eucairite

CuAgSe

orthorhombisch : mmm : Pmmn

02.04.06.02

Chalcocite

Cu2S

monoklin : 2/m : P21/c

02.04.07.01

Djurleite

Cu31S16

monoklin : 2/m : P21/n

02.04.07.02

Digenite

Cu1.8S

trigonal : 3m : R3m

02.04.07.03

Roxbyite

Cu58S32

triklin : 1 : P1

02.04.07.04

Anilite

Cu7S4

orthorhombisch : mmm : Pnma

02.04.07.05

Geerite

Cu8S5

trigonal : 32, 3m, 3m : R32, R3m, R3m

02.04.07.06

Spionkopite

Cu39S28

trigonal : 3m, 32, 3m : P3m1, P321, P3m1

02.04.07.07

Weissite

Cu2-xTe {x ≈ 0.21}

hexagonal : 6/mmm : P6/mmm

02.04.08.01

Bellidoite

Cu2Se

tetragonal : 4/m, : P42/n,

02.04.09.01

Other languages

German

Fischesserit

Spanish

Fischesserita

English

Fischesserite

French

Fischesserite

Russian

Фишессерит

Simplified Chinese

硒金银矿

IMA Number

IMA 1971-010

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