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Ferrostalderite

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Ferrostalderit
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Ferrostalderit

REM-BSE Aufnhame von isometrischen Ferrostalderit, Grube Lengenbach, Binntal, Schweiz

Copyright: Philippe Roth
Contribution: openpit 2019-11-05
Locality: Grube Lengenbach / Fäld (Imfeld, Im Feld) / Binn / Goms, Bezirk / Wallis, Kanton / Schweiz

Collectors Summary

Color schwarz
Streak color schwarz
Lustre Metallglanz
Fracture unregelmäßig
Crystal System tetragonal, I42m

Chemism

Chem­ical formula

CuFe2TlAs2S6

Empir­ical formula (anal­y­sis)

Cu0.75Ag0.30Fe1.36Zn0.52Hg0.05Tl1.00[As1.94Sb0.04]Σ1.98S6.04

Addi­tional chem. informa­tion

Das Fe-dominante Analog von Stalderit

Chem­ical com­po­si­tion

Arsen, Eisen, Kupfer, Thallium, Schwefel

Unit weight: 748.28940288 u; Number of atoms in the formula: 12

Info

Empirical formula:

Cu0.75Ag0.30Fe1.36Zn0.52Hg0.05Tl1.00[As1.94Sb0.04]S6.04

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Sulfur

S

25.88

6.04

50.33

32.0655000

193.6756200

Iron

Fe

10.15

1.36

11.33

55.8452000

75.9494720

Copper

Cu

6.37

0.75

6.25

63.5463000

47.6597250

Zinc

Zn

4.55

0.52

4.33

65.4094000

34.0128880

Arsenic

As

19.42

1.94

16.17

74.9216020

145.3479079

Silver

Ag

4.32

0.3

2.50

107.8682200

32.3604660

Antimony

Sb

0.65

0.04

0.33

121.7601000

4.8704040

Mercury

Hg

1.34

0.05

0.42

200.5920000

10.0296000

Thallium

Tl

27.31

1

8.33

204.3833200

204.3833200

Anal­y­sis wt%

Cu : 6.24(25), Ag : 4.18(9), Fe : 9.95(83), Zn : 4.46(91), Hg : 1.22(26), Tl : 26.86(62), As : 19.05(18), Sb : 0.63(6), S : 25.39(47), Total : 97.98(72)

Strunz 9th edi­tion incl. updates

2.GA.40

2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfarsenite, Sulfantimonite, Sulfbismuthite)
G: Sulfoarsenide, Sulfoantimonide, Sulfobismuthide
A: Insel(Neso)-Sulfarsenide, usw., ohne zusätzlichen Schwefel (S)
40:Stalderit-Gruppe

IMA sta­tus

anerkannt - CNMNC Newsletter No. 24, April 2015

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

schwarz

Streak color

schwarz

Lus­tre

Metallglanz

Anisotropism

schwach

Reflec­tiv­ity: (Lambda nm) ↓, ↑, Ø

(471.1) 24.20, 25.40, 24.80
(548.3) 23.70, 24.70, 24.20
(586.6) 22.90, 23.80, 23.35
(652.3) 21.00, 22.00, 21.50

Reflection chart Ferrostalderite

Reflec­tiv­ity Ø

23.46

Crystallography

Crystal Sys­tem

tetragonal

Class (H-M)

42m

Space Group number

121

Space Group

I42m

Cell param­e­ters a (Å)

9.8786(5)

Cell param­e­ters b (Å)

-

Cell param­e­ters c (Å)

10.8489(8)

Cell param­e­ters a/b or c/a

1.098

Cell param­e­ters c/b

-

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

90°

Z

4

Volumne (ų)

1058.709

Kristall struc­ture

Struktur bestimmt

X-Ray Pow­der Diffrac­tion

4.092(70), 3.493(23), 3.396(35), 3.124(17), 2.937(100), 2.656(19), 2.470(19), 2.435(33)

XRD chart Ferrostalderite

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

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Density (g/cm³)

4.694 ( ρ calc. Mineralienatlas )

Frac­ture

unregelmäßig

Tenac­ity

spröde

(Co-)Type locality

(Co-)Type locality

Schweiz/Wallis, Kanton/Goms, Bezirk/Binn/Fäld (Imfeld, Im Feld)/Grube Lengenbach

Type mate­r­ial

Museo di Storia Naturale, Università di Firenze, Via La Pira 4, Firenze, Italien

Col­lec­tion number of type mate­r­ial

3148/I

Par­a­ge­n­e­sis of type mate­r­ial

Dolomit, Realgar, Baumhauerit (?) und Pyrit

Preface

Author (Name, Year)

Luca Bindi, Cristian Biagioni, Fabrizio Nestola, Ralph Cannon, Philippe Roth and Thomas Raber (2016)

References

Bindi, L., Biagioni, C., Nestola, F., Cannon, R., Roth, P. and Raber, T. (2015) Ferrostalderite, IMA 2014-090. CNMNC Newsletter No. 24, April 2015, page 248; Mineralogical Magazine, 79, 247-251.

Bindi, L., Biagioni, C., Nestola, F., Cannon, R., Roth, P. and Raber, T.: Ferrostalderite, CuFe2TlAs2S6, a new mineral from Lengenbach, Switzerland: occurrence, crystal structure, and emphasis on the role of iron in 5 sulfosalts. Mineralogical Magazine Vol. 80 (2016) S. 175-186. [11. Dezember 2015]

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

Stalderite

TlCu(Zn,Fe,Hg)2As2S6

tetragonal : 42m : I42m

2.GA.40

Arsiccioite

AgHg2Tl(As,Sb)2S6

tetragonal : 42m : I42m

2.GA.40

Routhierite

TlCu(Hg,Zn)2(As,Sb)2S6

2.GA.40

Ferrostalderite

CuFe2TlAs2S6

tetragonal : 42m : I42m

2.GA.40

Ralphcannonite

AgZn2TlAs2S6

tetragonal : 42m : I42m

2.GA.40

CNMNC (IMA)-Number

IMA 2014-090

CNMNC symbol

Symbol

Fstd

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

German pages

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

English pages

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

Russian pages

Webmineral.ru - search for: Ферроштальдерит

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Ferrostalderit
Crystal-Treasure.com - search for: Ferrostalderit
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Locations with GPS information