'._('einklappen').'
 

Edgarite

Pictures (1 Images total)

Edgarit
Views (Image: 1296327869): 770
Edgarit

Bildbreite: 2 mm, Fundort: Kaskasnyunchorr, Khibiny, Kola, Russland

Copyright: Luigi Chiappino
Contribution: thdun5 2011-01-29
Locality: Kaskasnyunchorr / Chibiny (Khibiny) / Kola-Halbinsel / Murmansk, Oblast / Nordwestrussland, Föderationskreis / Russland

Collectors Summary

Color vergleichbar zu Molybdänit
Hardness (Mohs) 3.75
Cleavages vollkommen {001}
Crystal System hexagonal, P63

Chemism

Chem­ical formula

FeNb3+2Nb4+S6

Chem­ical com­po­si­tion

Eisen, Niob, Schwefel

Unit weight: 526.957346 u; Number of atoms in the formula: 10

Info

Empirical formula:

FeNb2NbS6

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Sulfur

S

36.51

6

60.00

32.0655000

192.3930000

Iron

Fe

10.60

1

10.00

55.8452000

55.8452000

Niobium

Nb

52.89

3

30.00

92.9063820

278.7191460

Anal­y­sis wt%

Nb : 52.87, Fe : 10.12, S : 35.86 (Ref: Contributions to Mineralogy and Petrology 2000)

Strunz 9th edi­tion incl. updates

2.DB.25

2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfarsenite, Sulfantimonite, Sulfbismuthite)
D: Metallsulfide mit M:S = 3:4 und 2:3
B: M:S = 2:3
25:Edgarit-Gruppe

Lapis Clas­sifica­tion

II/D.07-020

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

Clas­sifica­tion by Hölzel

2.DB.400

2: SULFIDES
D: With Me/S <1/1 and >1/2
B: Me/S=2/3

Dana 8th edi­tion

02.11.13.01

02: Sulfide Minerals
11: Sulfides - Including Selenides and Tellurides where Am Bn Xp, with (m+n):p=2:3

IMA sta­tus

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

vergleichbar zu Molybdänit

Diaphane­ity (Trans­parency)

opak

Crystallography

Crystal Sys­tem

hexagonal

Class (H-M)

6

Space Group number

173

Space Group

P63

Cell param­e­ters a (Å)

5.912(1)

Cell param­e­ters b (Å)

-

Cell param­e­ters c (Å)

12.675(2)

Cell param­e­ters a/b or c/a

2.144

Cell param­e­ters c/b

-

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

120°

Z

2

Volumne (ų)

383.661

X-Ray Pow­der Diffrac­tion

6.11(80),
3.04(60),
2.606(80),
2.096(100),
1.665(80),
1.524(60),
1.126(70),
1.027(60)

XRD chart Edgarite

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

Crystal Structure 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

3.75

VHN (Hard­ness Vick­ers)

170 (5/10g)

Density (g/cm³)

4.99 (berechnet)

4.561 ( ρ calc. Mineralienatlas )

Cleav­ages

vollkommen {001}

Preface

Author (Name, Year)

Barkov & Martin & Men'shikov & Savchenko & Thibault & Laajoki, 2000

Bindi & Martin: Edgarite, FeNb3S6, from the Khibina Alkaline Complex, Russia: solution of the crystal structure. The Canadian Mineralogist, 56, 2018, pp. 259-264

References

Contributions to Mineralogy and Petrology 138 (2000), 229

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

Edgarite

FeNb3+2Nb4+S6

hexagonal : 6 : P63

2.DB.25

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

Paxite

CuAs2

monoklin : 2/m : P21/c

II/D.07-010

Edgarite

FeNb3+2Nb4+S6

hexagonal : 6 : P63

II/D.07-020

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

Edgarite

FeNb3+2Nb4+S6

hexagonal : 6 : P63

2.DB.400

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

Nagyágite

Pb(Pb,Sb)S2(Te,Au)

monoklin : 2/m : P21/m

02.11.10.01

Buckhornite

(Pb2BiS3)(AuTe2)

orthorhombisch : mmm : Pmmn

02.11.11.01

Bowieite

(Rh,Ir,Pt)1.77S3

orthorhombisch : mmm : Pbcn

02.11.12.01

Kashinite

(Ir,Rh)2S3

orthorhombisch : mmm : Pbcn

02.11.12.02

Edgarite

FeNb3+2Nb4+S6

hexagonal : 6 : P63

02.11.13.01

Museumite

Pb5AuSbTe2S12

monoklin : 2/m, 2 : P21/m, P21

02.11.14.01

Other languages

German

Edgarit

Spanish

Edgarita

French

Edgarite

English

Edgarite

Russian

Эдгарит

Japanese

エドガライト

IMA Number

IMA 1995-017

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

German pages

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

English pages

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

Russian pages

Webmineral.ru - search for: Эдгарит

Mineral Dealer

German pages

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

Locations with GPS information