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Krennerite (Krennerit)

Pictures (13 Images total)

Krennerit
Views (File:
1404132874
): 3366
Krennerit
Bildbreite: 4 mm; Fundort: Sacarîmb (Nagyág), Kreis Hunedoara, Rumänien
Copyright: Stephan Wolfsried; Contribution: Hg
Location: Rumänien/Hunedoara, Kreis/Sacarimb (Nagyag)
Mineral: Krennerite
Image: 1404132874
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
Krennerit

Bildbreite: 4 mm; Fundort: Sacarîmb (Nagyág), Kreis Hunedoara, Rumänien

Copyright: Stephan Wolfsried
Contribution: Hg 2014-06-30
Locality: Sacarimb (Nagyag) / Hunedoara, Kreis / Rumänien
Krennerit
Views (File:
1295888210
): 2466
Krennerit
Kristallgröße: ca. 3 mm, Fundort: Cresson Mine, Cripple Creek District, Teller Co., Colorado, USA
Copyright: Rob Lavinsky; Contribution: thdun5
Location: USA/Colorado/Teller Co./Cripple Creek District/Eclipse Gulch/Cresson Mine
Mineral: Krennerite
Image: 1295888210
Rating: 7 (votes: 1)
License: Usage for Mineralienatlas project only
Krennerit

Kristallgröße: ca. 3 mm, Fundort: Cresson Mine, Cripple Creek District, Teller Co., Colorado, USA

Copyright: Rob Lavinsky
Contribution: thdun5 2011-01-24
Locality: Cresson Mine / Eclipse Gulch / Cripple Creek District / Teller Co. / Colorado / USA
Krennerit
Views (File:
1404132826
): 1516
Krennerit
Bildbreite: 4 mm; Fundort: Sacarîmb (Nagyág), Kreis Hunedoara, Rumänien
Copyright: Stephan Wolfsried; Contribution: Hg
Location: Rumänien/Hunedoara, Kreis/Sacarimb (Nagyag)
Mineral: Krennerite
Image: 1404132826
Rating: 7 (votes: 1)
License: Usage for Mineralienatlas project only
Krennerit

Bildbreite: 4 mm; Fundort: Sacarîmb (Nagyág), Kreis Hunedoara, Rumänien

Copyright: Stephan Wolfsried
Contribution: Hg 2014-06-30
Locality: Sacarimb (Nagyag) / Hunedoara, Kreis / Rumänien
Krennerit
Views (File:
1276110475
): 2026
Krennerit
Kristallgröße: 0,5 mm, Fundort: Sacarîmb (Nagyág), Hunedoara, Rumänien
Copyright: Jason B. Smith; Contribution: thdun5
Location: Rumänien/Hunedoara, Kreis/Sacarimb (Nagyag)
Mineral: Krennerite
Image: 1276110475
Rating: 5.5 (votes: 2)
License: Usage for Mineralienatlas project only
Krennerit

Kristallgröße: 0,5 mm, Fundort: Sacarîmb (Nagyág), Hunedoara, Rumänien

Copyright: Jason B. Smith
Contribution: thdun5 2010-06-09
Locality: Sacarimb (Nagyag) / Hunedoara, Kreis / Rumänien
Krennerit
Views (File:
1308818893
): 2000
Krennerit
Bildbreite: 51 mm; Fundort: Emperor Mine, Tavua Gold Field, Viti Levu, Fiji
Copyright: Rock Currier; Contribution: slugslayer
Collection: Rock Currier
Location: Fidschi/Viti Levu/Tavua Gold Field/Emperor Mine
Mineral: Krennerite
Image: 1308818893
Rating: 6 (votes: 1)
License: Usage for Mineralienatlas project only
Krennerit

Bildbreite: 51 mm; Fundort: Emperor Mine, Tavua Gold Field, Viti Levu, Fiji

Collection: Rock Currier
Copyright: Rock Currier
Contribution: slugslayer 2011-06-23
Locality: Emperor Mine / Tavua Gold Field / Viti Levu / Fidschi
Krennerit
Views (File:
1308818868
): 1157, Rating: 4.75
Krennerit
Größe: 50x39 mm; Fundort: Emperor Mine, Tavua Gold Field, Viti Levu, Fiji
Copyright: Rock Currier; Contribution: slugslayer
Collection: Rock Currier
Location: Fidschi/Viti Levu/Tavua Gold Field/Emperor Mine
Mineral: Krennerite
Image: 1308818868
Rating: 4.75 (votes: 4)
License: Usage for Mineralienatlas project only
Krennerit

Größe: 50x39 mm; Fundort: Emperor Mine, Tavua Gold Field, Viti Levu, Fiji

Collection: Rock Currier
Copyright: Rock Currier
Contribution: slugslayer 2011-06-23
Locality: Emperor Mine / Tavua Gold Field / Viti Levu / Fidschi

Collectors Summary

Color silberweiß
Streak color grünlich grau
Lustre Metallglanz
Hardness (Mohs) 2.5
Solubility +++ Königswasser, heiße H2SO4
Crystal System orthorhombisch, Pma2
Morphology grobspätige Aggregate

Chemism

Chemical formula

Au3AgTe8

Chemical composition

Gold, Silber, Tellur

Unit weight: 1719.591876 u; Number of atoms in the formula: 12

Info

Empirical formula:

Au3AgTe8

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Silver

Ag

6.27

1

8.33

107.8682200

107.8682200

Tellurium

Te

59.36

8

66.67

127.6030000

1,020.8240000

Gold

Au

34.36

3

25.00

196.9665520

590.8996560

Analysis wt%

Au : 36.19, Ag : 4.87, Te : 58.50 (Ref: Dana, 7th ed. 1)

Strunz 9th edition incl. updates

2.EA.15

2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfarsenite, Sulfantimonite, Sulfbismuthite)
E: Metallsulfide mit M:S >= 1:2
A: M:S = 1:2, mit Cu, Ag, Au; Ni, Sn, PGE, Mo, W
15:Krennerit-Gruppe

Lapis Classification

II/D.16-030

II: SULFIDE UND SULFOSALZE (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide)
D: Sulfide mit Metall : S,Se,Te < 1:1
16: Telluride mit Kupfer, Silber, Gold

Classification by Hölzel

2.EA.110

2: SULFIDES
E: Me/S=1/2 (also < 1/2)
A: Me/S=1/2 with Cu,Ag,Au, etc.
1: Sylvanite-Group

Dana 8th edition

02.12.13.01

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

IMA status

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

Mineral status

anerkanntes Mineral

Optical Properties

Color

silberweiß

Streak color

grünlich grau

Change in color

cremeweiß in reflektiertem Licht

Diaphaneity (Transparency)

opak

Lustre

Metallglanz

Pleochroism

schwach

Anisotropism

stark

Reflectivity: (Lambda nm) ↓, ↑, Ø

(400) 44.40, 50.30, 47.35
(420) 46.80, 52.50, 49.65
(440) 49.10, 54.60, 51.85
(460) 51.10, 56.40, 53.75
(480) 52.60, 57.70, 55.15
(500) 53.70, 58.70, 56.20
(520) 56.40, 59.40, 57.90
(540) 55.10, 59.90, 57.50
(560) 55.60, 60.30, 57.95
(580) 56.00, 60.60, 58.30
(600) 56.40, 60.70, 58.55
(620) 56.70, 60.80, 58.75
(640) 57.00, 60.90, 58.95
(660) 57.20, 60.90, 59.05
(680) 57.30, 60.90, 59.10
(700) 57.40, 60.80, 59.10

Reflection chart Krennerite

Reflectivity Ø

56.19

Optical Data Luminescence

Luminescence

keine Fluoreszenz bekannt

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mm2

Space Group number

28

Space Group

Pma2

Cell parameters a (Å)

16.54

Cell parameters b (Å)

8.82

Cell parameters c (Å)

4.46

Cell parameters a/b or c/a

1.875

Cell parameters c/b

0.506

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

2

Volumne (ų)

650.637

Kristall structure

aufgeklärt [1]

X-Ray Powder Diffraction

3.03(100),
2.94(60),
2.23(50),
2.11(70),
2.07(40),
1.78(40),
1.69(40),
1.52(40)

XRD chart Krennerite

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

Morphology

grobspätige Aggregate

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

2.5

VHN (Hardness Vickers)

176 (100g)

Density (g/cm³)

8.62 (gemessen) 8.81 (berechnet)

8.777 ( ρ calc. Mineralienatlas )

Instability

+++ Königswasser, heiße H2SO4

(Co-)Type locality

(Co-)Type locality

Rumänien/Hunedoara, Kreis/Sacarimb (Nagyag)

Preface

Author (Name, Year)

vom Rath, 1877

References

Handbook of Mineralogy (Anthony et al.), 1 (1990), 275

Other languages

German

Krennerit

Spanish

Krennerita

English

Krennerite

French

Krennerite

Russian

Креннерит

Japanese

クレンネル鉱

Alternative Name

German

Bunsenin

German

Gelberz

Mllerine

German

Müllerin

Müllerine

German

Weißtellur

J.F.L. Hausmann: Handbuch der Mineralogie, 1813; Lapis-Mineralienverzeichnis 2018

or gris jaunâtre (Krennerit)

Egleston 178 (1892)

Simplified Chinese

斜方碲金矿

Simplified Chinese

白碲金银矿

CNMNC symbol

Symbol

Knn

Locations with GPS information