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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
Copyright: Mabu; Contribution: Mabu
Collection: Mabu
Location: USA/Idaho/Owyhee Co./De Lamar District/De Lamar Mine
Mineral: Fischesserite
Image: 1416951731
License: Usage for Mineralienatlas project only
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

Volume (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 )

(Co-)Type locality

(Co-)Type locality

Tschechien/Südböhmische (Jihocesky kraj)/Pisek, Bezirk/Kovářov/Předbořice/Uranlagerstätte Předbořice

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

Other languages

German

Fischesserit

Spanish

Fischesserita

English

Fischesserite

French

Fischesserite

Russian

Фишессерит

Simplified Chinese

硒金银矿

CNMNC (IMA)-Number

IMA 1971-010

CNMNC symbol

Symbol

Fis

Locations with GPS information

IDs

GUSID (Global unique identifier short form) 0WjGXvn0mUeFRiBjXJxZAA
GUID (Global unique identifier) 5EC668D1-F4F9-4799-8546-20635C9C5900
Database ID 1227