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Kremersite (Eisenchlorid mit Chlorkalium)

Pictures (4 Images total)

Kremersit
Views (File:
1146080273
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Kremersit
Kremersit, Fundort: Halde Anna 1, Alsdorf
Copyright: Maurice de Graaf; Contribution: bardenoki
Location: Deutschland/Nordrhein-Westfalen/Köln, Bezirk/Aachen, Städteregion/Alsdorf/Anna
Mineral: Kremersite
Image: 1146080273
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
Kremersit

Kremersit, Fundort: Halde Anna 1, Alsdorf

Copyright: Maurice de Graaf
Contribution: bardenoki 2006-04-26
Locality: Anna / Alsdorf / Aachen, Städteregion / Köln, Bezirk / Nordrhein-Westfalen / Deutschland
Sassolin auf Kremersit
Views (File:
1146042705
): 3316
Sassolin auf Kremersit
Halde Anna 1, Alsdorf, Bildbreite: 3 mm
Copyright: Frank de Wit; Contribution: bardenoki
Location: Deutschland/Nordrhein-Westfalen/Köln, Bezirk/Aachen, Städteregion/Alsdorf/Anna
Mineral: Kremersite, Sassolite
Image: 1146042705
Rating: 6 (votes: 1)
License: Usage for Mineralienatlas project only
Sassolin auf Kremersit

Halde Anna 1, Alsdorf, Bildbreite: 3 mm

Copyright: Frank de Wit
Contribution: bardenoki 2006-04-26
Locality: Anna / Alsdorf / Aachen, Städteregion / Köln, Bezirk / Nordrhein-Westfalen / Deutschland
Kremersit-Ader
Views (File:
1146049889
): 1254
Kremersit-Ader
Kremersit-Ader Halde Anna 1, Alsdorf
Copyright: Frank de Wit; Contribution: bardenoki
Location: Deutschland/Nordrhein-Westfalen/Köln, Bezirk/Aachen, Städteregion/Alsdorf/Anna
Mineral: Kremersite
Image: 1146049889
Rating: 5 (votes: 1)
License: Usage for Mineralienatlas project only
Kremersit-Ader

Kremersit-Ader Halde Anna 1, Alsdorf

Copyright: Frank de Wit
Contribution: bardenoki 2006-04-26
Locality: Anna / Alsdorf / Aachen, Städteregion / Köln, Bezirk / Nordrhein-Westfalen / Deutschland
Kremersit
Views (File:
1146042888
): 1258
Kremersit
Halde Anna 1, Alsdorf
Copyright: Frank de Wit; Contribution: bardenoki
Location: Deutschland/Nordrhein-Westfalen/Köln, Bezirk/Aachen, Städteregion/Alsdorf/Anna
Mineral: Kremersite
Image: 1146042888
License: Usage for Mineralienatlas project only
Kremersit

Halde Anna 1, Alsdorf

Copyright: Frank de Wit
Contribution: bardenoki 2006-04-26
Locality: Anna / Alsdorf / Aachen, Städteregion / Köln, Bezirk / Nordrhein-Westfalen / Deutschland

Collectors Summary

Color braun rot, rot
Solubility +++ H2O
Crystal System orthorhombisch, Pnma

Chemism

Chemical formula

(NH4,K)2Fe3+Cl5·H2O

Chemical composition

Chlor, Eisen, Kalium, Sauerstoff, Stickstoff, Wasserstoff

Unit weight: 297.733441 u; Number of atoms in the formula: 17

Info

Empirical formula:

((NH4)0.75K0.25)2FeCl5·H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

2.71

8

47.06

1.0079470

8.0635760

Nitrogen

N

7.06

1.5

8.82

14.0067200

21.0100800

Oxygen

O

5.37

1

5.88

15.9994300

15.9994300

Chlorine

Cl

59.54

5

29.41

35.4532000

177.2660000

Potassium

K

6.57

0.5

2.94

39.0983100

19.5491550

Iron

Fe

18.76

1

5.88

55.8452000

55.8452000

Strunz 9th edition incl. updates

3.CJ.10

3: Halide (Fluoride, Chloride, Bromide, Iodide)
C: Komplexe Halogenide
J: Mit MX6 Komplexen; M = [Fe], [Mn], [Cu]
10:Erythrosiderit-Gruppe

Lapis Classification

III/C.07-040

III: HALOGENIDE (Fluoride, Chloride, Bromide, Jodide)
C: Doppelhalogenide (meist mit OH,H2O)
7: Chloride

Classification by Hölzel

3.DB.210

3: HALIDES
D: Complex Halides
B: With H2O and without Al

Dana 8th edition

11.04.01.02

11: Halide Complexes; Alumino-fluorides
04: Halide Complexes; Alumino-fluorides where (A)m B (X)5 · x(H2O)

IMA status

Erstbeschreibung vor CNMNC-Gründung (1959), als Mineral meist anerkannt

Mineral status

anerkanntes Mineral

Optical Properties

Color

braun rot, rot

Diaphaneity (Transparency)

transparent bis durchscheinend

max. Birefringence

0.05~

Birefringence chart\! Kremersite title=Birefringence chart Kremersite

Michel-Levy Color Chart viewed according to the maximum birefringence (at 30μm). Mineral color is not taken into account. Click on the image to enlarge or change thickness.

RI value α / ω / n

1.72

RI value β

1.74

RI value γ / ε

1.79

Ri mean

1.75~

2V angle

Biaxial (+) 62°

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mmm

Space Group number

62

Space Group

Pnma

Cell parameters a (Å)

9.803

Cell parameters b (Å)

13.657

Cell parameters c (Å)

7.028

Cell parameters a/b or c/a

0.718

Cell parameters c/b

0.515

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

4

Volume (ų)

940.906

X-Ray Powder Diffraction

5.72(80),
5.61(50),
4.900(40),
2.857(20),
2.800(100),
2.794(60),
2.783(50),
2.451(60)

XRD chart Kremersite

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)

2.17

2.102 ( ρ calc. Mineralienatlas )

Instability

+++ H2O

Preface

Author (Name, Year)

Kenngott, 1853

References

Handbook of Mineralogy (Anthony et al.), 3 (1997), 300

Other languages

German

Kremersit

Spanish

Kremersita

English

Kremersite

French

Kremersite

Russian

Кремерзит

Alternative Name

German

Eisenchlorid mit Chlorkalium

English

Kopeiskite

Kopeyskite

CNMNC symbol

Symbol

Km

Locations with GPS information

IDs

GUSID (Global unique identifier short form) icaBchp9DkCCMPebw6Tqeg
GUID (Global unique identifier) 7281C689-7D1A-400E-8230-F79BC3A4EA7A
Database ID 2056