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Eliopoulosite

Collectors Summary

Color graubraun
Lustre Metallglanz
Crystal System trigonal, P3221
Morphology winzige Kristalle (von 5 µm bis zu 80 µm), in Dünnschliffen beobachtet

Chemism

Chem­ical formula

V7S8

Empir­ical formula (anal­y­sis)

(V6.55Ni0.19Fe0.12Co0.07Mo0.04)Σ6.97S8.03

Chem­ical com­po­si­tion

Schwefel, Vanadium

Unit weight: 616.969033363 u; Number of atoms in the formula: 15

Info

Empirical formula:

(V6.55Ni0.19Fe0.12Co0.07Mo0.04)S8.03

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Sulfur

S

41.73

8.03

53.53

32.0655000

257.4859650

Vanadium

V

54.08

6.55

43.67

50.9415100

333.6668905

Iron

Fe

1.09

0.12

0.80

55.8452000

6.7014240

Cobalt

Co

0.67

0.07

0.47

58.9332009

4.1253241

Nickel

Ni

1.81

0.19

1.27

58.6934200

11.1517498

Molybdenum

Mo

0.62

0.04

0.27

95.9420000

3.8376800

Anal­y­sis wt%

S 41.78,
V 54.11,
Ni 1.71,
Fe 1.1,
Co 0.67,
Mo 0.66,
Total 100.03

Strunz 9th edi­tion incl. updates

2.CC.10

2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfarsenite, Sulfantimonite, Sulfbismuthite)
C: Metallsulfide, M : S = 1 : 1 (und ähnliche)
C: mit Nickel (Ni), Eisen (Fe), Cobalt (Co), usw.
10:Pyrrhotin-Gruppe

IMA sta­tus

anerkannt - CNMNC Newsletter 53 (2020)

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

graubraun

Lus­tre

Metallglanz

Pleochro­ism

keiner

Bireflectance

keine

Anisotropism

schwach hell bis dunkelgrünlich

Reflec­tiv­ity: (Lambda nm) ↓, ↑, Ø

(470) 34.80, , 34.80
(546) 38.00, , 38.00
(598) 40.00, , 40.00
(650) 42.50, , 42.50

Reflection chart Eliopoulosite

Reflec­tiv­ity Ø

38.83

Crystallography

Crystal Sys­tem

trigonal

Class (H-M)

32

Space Group number

154

Space Group

P3221

Cell param­e­ters a (Å)

6.689(3)

Cell param­e­ters b (Å)

-

Cell param­e­ters c (Å)

17.403(6)

Cell param­e­ters a/b or c/a

2.602

Cell param­e­ters c/b

-

Z

3

Volumne (ų)

674.337

Kristall struc­ture

Struktur ermittelt

X-Ray Pow­der Diffrac­tion

2.896(29), 2.591(45), 2.049(100), 1.672(40), 1.608(10), 1.296(20), 1.096(15), 1.024(12)

XRD chart Eliopoulosite

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

Morphol­ogy

winzige Kristalle (von 5 µm bis zu 80 µm), in Dünnschliffen beobachtet

Physical Properties

Density (g/cm³)

4.545 (berechnet)

4.558 ( ρ calc. Mineralienatlas )

Tenac­ity

spröde

(Co-)Type locality

(Co-)Type locality

Griechenland/Mittelgriechenland, Region/Fthiotis, Regionalbezirk/Lamia/Othrys/Domokós/Aghio Stefanos Prospekt

Type mate­r­ial

Typisches Material ist in den mineralogischen Sammlungen des Museo di Storia Naturale, Università di Pisa, Via Roma 79, Calci (PI), Italien, Katalognummer 19911, hinterlegt.

Par­a­ge­n­e­sis of type mate­r­ial

Magnesiochromit, Nickelphosphid, Awaruit, Tsikourasit, Grammatikopoulosit

Preface

Name from

Dr. Demetrios Eliopoulos (1947–2019), Geowissenschaftler am Institute of Geology and Mineral Exploration (IGME) of Greece und seiner Witwe, Prof. Maria Eliopoulos (geb. Economou, 1947), University of Athens, Greece, für ihre Beiträge zum Wissen über die Erzlagerstätten in Griechenland und ihre mineralogischen, petrographischen und geochemischenal Arbeiten über Ophiolithe, auch zum Othrys Komplex

Author (Name, Year)

Luca Bindi, Federica Zaccarini, Paola Bonazzi, Tassos Grammatikopoulos, Basilios Tsikouras, Chris J. Stanley, and Giorgio Garuti (2020)

Manip­u­la­tion / Imi­ta­tion

Synthetisches Analogon bekannt, siehe Selezneva, N.V.; Ibrahim, P.N.G.; Toporova, N.M.; Sherokalova, E.M.; Baranov, N.V. Crystal structure and magnetic properties of pyrrhotite-type compounds Fe7-yVyS8. Acta Phys. Polon. 2018, A133, 450–452.

References

Bindi, L., Zaccarini, F., Bonazzi, P., Grammatikopoulos, T., Tsikouras, B., Stanley, C. J., and Garuti, G.: Eliopoulosite, IMA 2019-096, in: CNMNC Newsletter 53, Eur. J. Mineral., 32, https://doi.org/10.5194/ejm-32-209-2020, 2020.

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

Smythite

(Fe,Ni)3+xS4 {x≈0-0.3}

trigonal : 3m : R3m

2.CC.10

Troilite

FeS

hexagonal : 6m2 : P62c

2.CC.10

Pyrrhotite

Fe1-xS

2.CC.10

Eliopoulosite

V7S8

trigonal : 32 : P3221

2.CC.10

Other languages

German

Eliopoulosit

English

Eliopoulosite

IMA Number

IMA 2019-096

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

German pages

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

English pages

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

German pages

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Crystal-Treasure.com - search for: Eliopoulosit
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Locations with GPS information