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Cadwaladerite

Pictures (2 Images total)

Cadwaladerit
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Cadwaladerit

gelbe Kristallgruppe von Cadwaladerit, Maria Mine, Caleta Vítor, Arica y Parinacota, Chile; BB 1 mm

Copyright: Joy Desor
Contribution: openpit 2020-01-15
Locality: Maria Mine / Caleta Vítor District / Arica, Provinz / Arica y Parinacota, Region (XV. Region) / Chile
kugeliger gelber Cadwaladerit
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kugeliger gelber Cadwaladerit (SNr: A043145)

Chile/Arica y Parinacota, Region (XV. Region)/Arica, Provinz/Caleta Vítor District/Maria Mine, BB = 5,0 mm

Collection: Lithothek der Münchener Micromounter
Copyright: husi
Contribution: Münchener Micromounter 2020-11-30
Locality: Maria Mine / Caleta Vítor District / Arica, Provinz / Arica y Parinacota, Region (XV. Region) / Chile

Collectors Summary

Color zitronengelb
Solubility +++ Säuren
Crystal System kubisch, Im3m

Chemism

Chem­ical formula

Al2(H2O)(OH)4·n(Cl,OH,H2O)

Addi­tional chem. informa­tion

IMA 18-H Redefinition: Al5(H2O)3(OH)12·n(Cl,H2O)

Chem­ical com­po­si­tion

Aluminium, Chlor, Sauerstoff, Wasserstoff

Unit weight: 184.3973655 u; Number of atoms in the formula: 17.2

Info

Empirical formula:

Al2(H2O)(OH)4·n(Cl0.6(OH)0.3(H2O)0.1)

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

4.54

8.3

48.26

1.0079470

8.3659601

Oxygen

O

54.66

6.3

36.63

15.9994300

100.7964090

Aluminium

Al

29.26

2

11.63

26.9815382

53.9630764

Chlorine

Cl

11.54

0.6

3.49

35.4532000

21.2719200

Strunz 9th edi­tion incl. updates

3.BD.05

3: Halide (Fluoride, Chloride, Bromide, Iodide)
B: Einfache Halogenide mit H2O
D: Einfache Halide mit H2O und zusätzlichem OH
05:Cadwaladerit-Gruppe

Lapis Clas­sifica­tion

III/A.13-010

III: HALOGENIDE (Fluoride, Chloride, Bromide, Jodide)
A: Einfache Halogenide
13: Wasserhaltig, Metall : Halogen = 1:1 bis 1:3

Clas­sifica­tion by Hölzel

3.CC.250

3: HALIDES
C: Simple Halides with (O,OH)
C: With OH and H2O

IMA sta­tus

Nach Redefinition anerkannt

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

zitronengelb

RI value α / ω / n

1.513

Ri mean

1.513

2V angle

Isotropisch

Crystallography

Crystal Sys­tem

kubisch

Space Group

Im3m

Cell param­e­ters a (Å)

19.818 bis 1

Cell param­e­ters b (Å)

-

Cell param­e­ters c (Å)

-

Cell param­e­ters a/b or c/a

1

Cell param­e­ters c/b

-

Cell param­e­ters α

-

Cell param­e­ters β

-

Cell param­e­ters γ

-

Z

-

Volumne (ų)

7783.581

Physical Properties

Density (g/cm³)

1.66 (gemessen)

Insta­bil­ity

+++ Säuren

Preface

Author (Name, Year)

Gordon, 1941

References

Handbook of Mineralogy (Anthony et al.), 3 (1997), 88

Ritsuro Miyawaki, Frédéric Hatert, Marco Pasero, Stuart J. Mills: IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) Newsletter 49. In: Mineralogical Magazine. Band 83, 2019, S. 479–483 (PDF-Datei)

Ronald C. Peterson; Mallory Metcalf ; Anthony R. Kampf; Reynaldo R. Contreira Filho; Joel Reid; Brian Joy: Cadwaladerite, Al2(H2O)(OH)4•n(Cl,OH–, H2O), from Cerros Pintados, Chile, defined as a valid mineral species and the discreditation of lesukite. The Canadian Mineralogist Vol. 57, Nr. 6 (2019) S. 827-841.

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

Cadwaladerite

Al2(H2O)(OH)4·n(Cl,OH,H2O)

kubisch : Im3m

3.BD.05

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

'Lesukite'

(Al,Fe3+)2(OH)5Cl·2H2O

kubisch : m3m : Im3m

III/A.13-005

Cadwaladerite

Al2(H2O)(OH)4·n(Cl,OH,H2O)

kubisch : Im3m

III/A.13-010

Chloraluminite

AlCl3·6H2O

trigonal : 3m : R3c

III/A.13-020

'Hydromolysite'

Fe3+Cl3·6H2O

monoklin : 2/m : C2/m

III/A.13-030

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

Rosenbergite

AlF[F0.5(H2O)0.5]4·H2O

tetragonal : 4/m : P4/n

3.CC.200

Cadwaladerite

Al2(H2O)(OH)4·n(Cl,OH,H2O)

kubisch : Im3m

3.CC.250

'Lesukite'

(Al,Fe3+)2(OH)5Cl·2H2O

kubisch : m3m : Im3m

3.CC.270

CNMNC symbol

Symbol

Cwd

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

German pages

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

English pages

Mindat - search for: Cadwaladerite
Webmineral - search for:Cadwaladerite
Handbook-of-Mineralogy - search for: Cadwaladerite
RRUFF - Raman, XRD and other mineral data - search for: Cadwaladerite
RRUFF - References and PDF downloads - search for: Cadwaladerite
American-Mineralogist-Crystal-Structure-Database - search for: Cadwaladerite
Athena - search for: Cadwaladerite
Strahlen.org - search for: Cadwaladerite
Mineralienatls.de (Forum) - search for: Cadwaladerit

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Cadwaladerit
Crystal-Treasure.com - search for: Cadwaladerit
Bosse - search for: Cadwaladerit
Edelsteine Neuburg - Gundolf Fischer - search for: Cadwaladerit

Locations with GPS information