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Keilite

Additional Functions

Collectors Summary

Color grau
Hardness (Mohs) 4
Cleavages teilt sich in orthogonale Fragmente
Fracture mit dreieckigen Mustern
Crystal System kubisch, Fm3m

Chemism

Chemical formula

(Fe,Mg,Mn,Ca,Cr)S

Chemical composition

Calcium, Chrom, Eisen, Magnesium, Mangan, Schwefel

Unit weight: 78.95415799 u; Number of atoms in the formula: 2

Info

Empirical formula:

(Fe0.55Mg0.25Mn0.1Ca0.05Cr0.05)S

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Magnesium

Mg

7.70

0.25

12.50

24.3050600

6.0762650

Sulfur

S

40.61

1

50.00

32.0655000

32.0655000

Calcium

Ca

2.54

0.05

2.50

40.0784000

2.0039200

Chromium

Cr

3.29

0.05

2.50

51.9961600

2.5998080

Manganese

Mn

6.96

0.1

5.00

54.9380499

5.4938050

Iron

Fe

38.90

0.55

27.50

55.8452000

30.7148600

Analysis wt%

Fe : 39.45, Mg : 10.42, Mn : 3.42, Cr : 1.89, Ca : 2.23, S : 41.24 (Ref: Canadian Mineralogist 2002 and SC1967)

Strunz 9th edition incl. updates

2.CD.10

2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfarsenite, Sulfantimonite, Sulfbismuthite)
C: Metallsulfide, M : S = 1 : 1 (und ähnliche)
D: mit Zinn (Sn), Blei (Pb), Quecksilber (Hg), usw.
10:Galenit-Gruppe

Lapis Classification

II/C.15-005

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

Classification by Hölzel

2.CD.205

2: SULFIDES
C: Sulfides (etc) with Me/S=1/1
D: With Sn,Pb, etc. - Coordination Number ~[4+1]
2: Coordination Number ~[6] Galenite-Group

Dana 8th edition

02.08.01.09

02: Sulfide Minerals
08: Sulfides - Including Selenides and Tellurides where Am Bn Xp, with (m+n):p=1:1
01: Galena Group (Isometric: Fm3m)

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

grau

Crystallography

Crystal System

kubisch

Class (H-M)

m3m

Space Group number

225

Space Group

Fm3m

Cell parameters a (Å)

5.172

Cell parameters b (Å)

-

Cell parameters c (Å)

-

Cell parameters a/b or c/a

1

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

4

Volume (ų)

138.349

X-Ray Powder Diffraction

2.985(10),
2.585(100),
1.828(60),
1.492(10),
1.292(10),
1.156(10),
1.055(10),
0.862(10)

XRD chart Keilite

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

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

4

VHN (Hardness Vickers)

190 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

3.958 (berechnet)

3.79 ( ρ calc. Mineralienatlas )

Cleavages

teilt sich in orthogonale Fragmente

Fracture

mit dreieckigen Mustern

(Co-)Type locality

(Co-)Type locality

Kanada/Alberta/Abee

Preface

Author (Name, Year)

Shimizu & Yoshida & Mandarino, 2002

References

American Mineralogist, Volume 92, pages 204–209, 2007

Other languages

German

Keilit

Spanish

Keilita

French

Keilite

English

Keilite

Russian

Кейлит

Traditional Chinese

硫鎂鐵礦

Simplified Chinese

硫镁铁矿

CNMNC (IMA)-Number

IMA 2001-053

CNMNC symbol

Symbol

Ke

IDs

GUSID (Global unique identifier short form) fwR02k8syUqvkvRyw_ih4w
GUID (Global unique identifier) DA74047F-2C4F-4AC9-AF92-F472C3F8A1E3
Database ID 1909