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Krennerite (Krennerit)

Pictures (13 Images total)

Krennerit
Views (Image: 1404132874): 3035
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 (Image: 1295888210): 2297
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 (Image: 1404132826): 1338
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 (Image: 1276110475): 1900
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 (Image: 1308818893): 1856
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 (Image: 1308818868): 1102, Rating: 4.75
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

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

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

Kostovite

CuAuTe4

orthorhombisch : mm2 : Pma2

2.EA.15

Krennerite

Au3AgTe8

orthorhombisch : mm2 : Pma2

2.EA.15

'Muchuanite'

MoS2·0.5H2O

trigonal : 3m : P3m1

2.EA.15

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

Kostovite

CuAuTe4

orthorhombisch : mm2 : Pma2

II/D.16-010

Sylvanite

AgAuTe4

monoklin : 2/m : P2/c

II/D.16-020

Krennerite

Au3AgTe8

orthorhombisch : mm2 : Pma2

II/D.16-030

Calaverite

AuTe2

monoklin : 2/m : C2/m

II/D.16-040

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

Kostovite

CuAuTe4

orthorhombisch : mm2 : Pma2

2.EA.100

Krennerite

Au3AgTe8

orthorhombisch : mm2 : Pma2

2.EA.110

Sylvanite

AgAuTe4

monoklin : 2/m : P2/c

2.EA.130

Calaverite

AuTe2

monoklin : 2/m : C2/m

2.EA.150

Verbeekite

PdSe2

monoklin : 2/m, 2, m : C2/m, C2, Cm

2.EA.160

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

Krennerite

Au3AgTe8

orthorhombisch : mm2 : Pma2

02.12.13.01

Calaverite

AuTe2

monoklin : 2/m : C2/m

02.12.13.02

Sylvanite

AgAuTe4

monoklin : 2/m : P2/c

02.12.13.03

Kostovite

CuAuTe4

orthorhombisch : mm2 : Pma2

02.12.13.04

Melonite

NiTe2

trigonal : 3m : P3m1

02.12.14.01

Kitkaite

NiTeSe

trigonal : 3m : P3m1

02.12.14.02

Moncheite

(Pt,Pd)(Te,Bi)2

trigonal : 3m : P3m1

02.12.14.03

Merenskyite

PdTe2

trigonal : 3m : P3m1

02.12.14.04

Shuangfengite

IrTe2

trigonal : 3m : P3m1

02.12.14.06

Sudovikovite

PtSe2

trigonal : 3m : P3m1

02.12.14.07

Froodite

PdBi2

monoklin : 2/m : C2/m

02.12.15.01

Urvantsevite

Pd(Bi,Pb)2

tetragonal : 4/mmm : I4/mmm

02.12.15.02

Verbeekite

PdSe2

monoklin : 2/m, 2, m : C2/m, C2, Cm

02.12.15.03

Borishanskiite

Pd(As,Pb)2

orthorhombisch : mm2 : Ccm21

02.12.16.01

Skutterudite

CoAs3

kubisch : m3 : Im3

02.12.17.01

Nickelskutterudite

(Ni,Co,Fe)As3

kubisch : m3 : Im3

02.12.17.02

Kieftite

CoSb3

kubisch : m3 : Im3

02.12.17.03

Rheniite

ReS2

triklin : 1 : P1

02.12.18.01

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

Automatic Links to external internet sources (Responsibility is with the operator)

German pages

DeWikiPedia - search for: Krennerit
Google-Bilder-Suche - search for: Krennerit
Mineralogisch-Petrographisches-Institut Hamburg - search for: Krennerit

English pages

Mindat - search for: Krennerite
Webmineral - search for:Krennerite
Handbook-of-Mineralogy - search for: Krennerite
RRUFF - Raman, XRD and other mineral data - search for: Krennerite
RRUFF - References and PDF downloads - search for: Krennerite
American-Mineralogist-Crystal-Structure-Database - search for: Krennerite
Athena - search for: Krennerite

Russian pages

Webmineral.ru - search for: Креннерит

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Krennerit
Crystal-Treasure.com - search for: Krennerit
Bosse - search for: Krennerit

Locations with GPS information